Re: Poweroff on Fedora 37

2023-05-12 Thread Samuel Sieb

On 5/12/23 18:48, Jeffrey Walton wrote:

On Fri, May 12, 2023 at 8:04 PM Samuel Sieb  wrote:


On 5/12/23 16:20, Jeffrey Walton wrote:

On Fri, May 12, 2023 at 5:10 PM Joe Zeff  wrote:


On 05/12/2023 02:58 PM, Jeffrey Walton wrote:

So does the hostname command, but it no longer works, either.


I just tried the basic command, and it worked just fine.  What doesn't
it do for you that it's supposed to?


Set the hostname using the command.


It works for me, but why would you want to do that?  It's not a
permanent change anyway.


I'd be interested to know how it works for you.

Setting a host's name using hostname is _the way_ to set a host name.
Or it was until Poettering came along.


Maybe you should read the man page for hostname.  If you want a 
permanent change, you set it in /etc/hostname (or now you can use 
"hostnamectl").  But the hostname command still works for temporary 
changes.  You didn't explain what you're trying to do and what's not 
working, although you should start a new thread because this one has 
gone off track.

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Re: Poweroff on Fedora 37

2023-05-12 Thread Jeffrey Walton
On Fri, May 12, 2023 at 8:04 PM Samuel Sieb  wrote:
>
> On 5/12/23 16:20, Jeffrey Walton wrote:
> > On Fri, May 12, 2023 at 5:10 PM Joe Zeff  wrote:
> >>
> >> On 05/12/2023 02:58 PM, Jeffrey Walton wrote:
> >>> So does the hostname command, but it no longer works, either.
> >>
> >> I just tried the basic command, and it worked just fine.  What doesn't
> >> it do for you that it's supposed to?
> >
> > Set the hostname using the command.
>
> It works for me, but why would you want to do that?  It's not a
> permanent change anyway.

I'd be interested to know how it works for you.

Setting a host's name using hostname is _the way_ to set a host name.
Or it was until Poettering came along.

You don't have to take my word on it. W. Richard Stevens writes
prodigiously about these topics in his books. The hostname program is
covered in APUE p. 155.

Jeff
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Re: Any x86_64 Fedora Tablets out there?

2023-05-12 Thread ToddAndMargo via users

On 5/12/23 17:44, Allan via users wrote:

On Thu, 11 May 2023 17:01:35 -0700
ToddAndMargo via users  wrote:


On 5/11/23 15:35, Allan via users wrote:

On Mon, 8 May 2023 18:51:54 +0200
Mario Marietto  wrote:



my newborn interest is already over.


Well, we do try to support a few of them in the Mobility SIG


I'm also interested to find a tablet where I can install
Fedora,but that tablet should be based on ARM.


https://pine64.com/product-category/tablets/

We will try to support these, when they start sending them out.

Allan.


Hi Allen,

Awesome!

The pine64 is an ARM tablet.


Correct. That said, it is completely new on the market - and not yet
fully supported by mainline kernel and thereby Fedora. It is expected
for users (in the beginning) to have some super-user skills.
The Pinetab2 is also a low-power SoC - very far from a powerful SoC as
you generally see them on x86 laptops.

   I have one Windows

app that required an intel processor that I
need to run in Wine (it does on my Fedora37).
I presume that is out with ARM.


Well, I can't really answer that, as I have never used wine.
To my big surprise though, wine is available in Fedoras repos
for aarch64. I suspect though, that it will require Windows aarch64
binaries to be able to run them. An alternative could be an emulator
like Box64, that can run x86_64 files on aarch64 - but that will be
_extremely_ slow on this device.


But, if I can run Android apps, that same app also
has an ARM Android version, which works better
than the windows version!


Fedora has Waydroid in repos, that can run Android apps in a container.
Again generally reported so be slow on such low-power devices.


Your take?  Will I be able to run ARM android apps?


Possibly.


Also, maybe a dumb question, but does ARM Fedora
also come with SE Linux?


Yes.
  

And, can I run MATE and/or Xfce on the ARM version?


You can run whatever you like.

   Allan.


Thank you!
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Re: Any x86_64 Fedora Tablets out there?

2023-05-12 Thread Allan via users
On Thu, 11 May 2023 17:01:35 -0700
ToddAndMargo via users  wrote:

> On 5/11/23 15:35, Allan via users wrote:
> > On Mon, 8 May 2023 18:51:54 +0200
> > Mario Marietto  wrote:
> > 
> >>
> >> my newborn interest is already over.
> > 
> > Well, we do try to support a few of them in the Mobility SIG
> > 
>  I'm also interested to find a tablet where I can install
>  Fedora,but that tablet should be based on ARM.
> > 
> > https://pine64.com/product-category/tablets/
> > 
> > We will try to support these, when they start sending them out.
> > 
> >Allan.
> 
> Hi Allen,
> 
> Awesome!
> 
> The pine64 is an ARM tablet.

Correct. That said, it is completely new on the market - and not yet
fully supported by mainline kernel and thereby Fedora. It is expected
for users (in the beginning) to have some super-user skills.
The Pinetab2 is also a low-power SoC - very far from a powerful SoC as
you generally see them on x86 laptops.

  I have one Windows
> app that required an intel processor that I
> need to run in Wine (it does on my Fedora37).
> I presume that is out with ARM.

Well, I can't really answer that, as I have never used wine.
To my big surprise though, wine is available in Fedoras repos
for aarch64. I suspect though, that it will require Windows aarch64
binaries to be able to run them. An alternative could be an emulator
like Box64, that can run x86_64 files on aarch64 - but that will be
_extremely_ slow on this device.

> But, if I can run Android apps, that same app also
> has an ARM Android version, which works better
> than the windows version!

Fedora has Waydroid in repos, that can run Android apps in a container.
Again generally reported so be slow on such low-power devices.

> Your take?  Will I be able to run ARM android apps?

Possibly.

> Also, maybe a dumb question, but does ARM Fedora
> also come with SE Linux?

Yes.
 
> And, can I run MATE and/or Xfce on the ARM version?

You can run whatever you like.

  Allan.
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Re: F38/Xfce - background DNF checks still going

2023-05-12 Thread Tim via users
On Fri, 2023-05-12 at 13:08 -0400, Robert Moskowitz wrote:
> Looks like I am going to have to just uninstall dhf-dragora.
> 
> Even after
> 
> systemctl disable dnf-makecache.timer
> 
> Still got
> 
> dnf update
> Last metadata expiration check: 0:18:17 ago on Fri 12 May 2023 12:45:30 
> PM EDT.
> 
> ARGH!!!  wasting cycles and bandwidth for what?

So your command line tool responds quicker?  Mostly it'll parse the
prefetched data, rather than have to get all the metadata when you run
it.  Unless, I'm guessing, it decides that too much time has passed
since it downloaded metadata and when you ran the dnf tool.

I removed dnf-dragora, and dnf-makecache.timer still exists. They're
different things.

dnf-dragora is that task bar thing that pops up telling you there's
packages available to update, and you can fire off the updates from it,
and a GUI tool for installing packages.  I removed it, I don't use them
at all.

dnf-makecache.timer simply keeps the dnf metadata refreshed (which
probably isn't essential).  It's a part of the main dnf RPM, so I don't
think you can get rid of it.  Try masking it if you want.

 
-- 
 
NB:  All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the list.
 
The following system info data is generated fresh for each post:
 
uname -rsvp
Linux 6.2.14-100.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May  1 00:54:35
UTC 2023 x86_64
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Re: Poweroff on Fedora 37

2023-05-12 Thread Samuel Sieb

On 5/12/23 16:20, Jeffrey Walton wrote:

On Fri, May 12, 2023 at 5:10 PM Joe Zeff  wrote:


On 05/12/2023 02:58 PM, Jeffrey Walton wrote:

So does the hostname command, but it no longer works, either.


I just tried the basic command, and it worked just fine.  What doesn't
it do for you that it's supposed to?


Set the hostname using the command.


It works for me, but why would you want to do that?  It's not a 
permanent change anyway.

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Re: Poweroff on Fedora 37

2023-05-12 Thread Joe Zeff

On 05/12/2023 05:20 PM, Jeffrey Walton wrote:

On Fri, May 12, 2023 at 5:10 PM Joe Zeff  wrote:

On 05/12/2023 02:58 PM, Jeffrey Walton wrote:

So does the hostname command, but it no longer works, either.

I just tried the basic command, and it worked just fine.  What doesn't
it do for you that it's supposed to?


What is the exact command you used, and did you do it as root?
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Re: Poweroff on Fedora 37

2023-05-12 Thread Jeffrey Walton
On Fri, May 12, 2023 at 5:10 PM Joe Zeff  wrote:
>
> On 05/12/2023 02:58 PM, Jeffrey Walton wrote:
> > So does the hostname command, but it no longer works, either.
>
> I just tried the basic command, and it worked just fine.  What doesn't
> it do for you that it's supposed to?

Set the hostname using the command.

Jeff
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Roger Heflin
If the switch is dumb enough and won't disable a port if it sees the
same mac address on 2 ports then linux bonding active-active
round-robin has worked for me before.

If the switch is smart enough it will disable one of the 2 ports.
This is using dumb bonding no LAG, and the switch will bounce the mac
between the ports quickly.

On Fri, May 12, 2023 at 4:39 PM Thomas Cameron
 wrote:
>
> On 5/12/23 16:32, Samuel Sieb wrote:
> > If you have two gigabit interfaces and a managed switch, you can also
> > team the interfaces for double the bandwidth.  Still much cheaper than
> > going to 10Gb.
>
> Sadly, right now I just have an unmanaged switch. I would either have to
> upgrade to a new switch or buy a new 10Gb switch.
>
> If I buy a new switch, I may as well spend a little more for MUCH higher
> throughput.
>
> Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Samuel Sieb

On 5/12/23 14:38, Chris Adams wrote:

Once upon a time, Samuel Sieb  said:

If you have two gigabit interfaces and a managed switch, you can
also team the interfaces for double the bandwidth.  Still much
cheaper than going to 10Gb.


You do not get double the bandwidth from a LAG, except under the most
ideal circumstances; you probably get an increase in overall traffic,
but usually not at all for something like NFS (which uses a single TCP
socket for communication).  LAGs don't balance or round-robin traffic;
they hash some selection of packet info (sometimes just
source/destination MAC, sometimes adding IP, sometimes also TCP/UDP
src/dest port) and select a LAG member to use based on the hash.  All
packets of a single stream go down the same LAG member, because
otherwise you introduce jitter and out-of-order packet arrival.


Yes, I just looked it up now.  That's unfortunate.  But it will still 
likely work for my purposes anyway (multiple devices accessing a higher 
than 1Gbs internet connection).

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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 16:32, Samuel Sieb wrote:
If you have two gigabit interfaces and a managed switch, you can also 
team the interfaces for double the bandwidth.  Still much cheaper than 
going to 10Gb.


Sadly, right now I just have an unmanaged switch. I would either have to 
upgrade to a new switch or buy a new 10Gb switch.


If I buy a new switch, I may as well spend a little more for MUCH higher 
throughput.


Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Chris Adams
Once upon a time, Samuel Sieb  said:
> If you have two gigabit interfaces and a managed switch, you can
> also team the interfaces for double the bandwidth.  Still much
> cheaper than going to 10Gb.

You do not get double the bandwidth from a LAG, except under the most
ideal circumstances; you probably get an increase in overall traffic,
but usually not at all for something like NFS (which uses a single TCP
socket for communication).  LAGs don't balance or round-robin traffic;
they hash some selection of packet info (sometimes just
source/destination MAC, sometimes adding IP, sometimes also TCP/UDP
src/dest port) and select a LAG member to use based on the hash.  All
packets of a single stream go down the same LAG member, because
otherwise you introduce jitter and out-of-order packet arrival.

Also, 10G has lower latency than 1G, which helps NFS performance as
well.

-- 
Chris Adams 
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Samuel Sieb

On 5/12/23 07:41, Roger Heflin wrote:

At home I question the value of it.   You might even simply test your
nfs home setup and see if you can even get close to Gbit speeds,
unless you have a newer machine and a good underlying disk setup you
probably aren't going to get there.  And you also need a decent Gbit
card, but if you do not have a decent gbit card, you can buy a used
enterprise grade dual gbit card for around $25 (branded Dell or
branded HPE).


If you have two gigabit interfaces and a managed switch, you can also 
team the interfaces for double the bandwidth.  Still much cheaper than 
going to 10Gb.

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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Chris Adams
Once upon a time, Ian Pilcher  said:
> For short runs, you can use DAC cables; no need for separate SFP+
> modules.  FS.com has 2m 10G DAC cables for $14.

It's a trade-off... cards that take SFP+s tend to cost more than cards
with just an RJ-45 jack.  I do have a DAC cable between my router and
switch (because both are SFP+), but then I have RJ-45 SFP+s in the
switch for the computer ports (because the computers are just RJ-45).

> (Just make sure that their coded properly for the hardware that you're
> going to use them with.)

This is sooo stupid.  Even as network vendors have mostly backed off
this crap, Intel's drivers in the Linux kernel enforce vendor coding.
The driver for older chips has a module option to disable it, but the
more recent driver for newer chips doesn't even have that.  I was very
surprised when I got bit by this at a previous job - we tended to get
FiberStore "generic" coded modules, which work just fine in equipment
from multiple vendors, but then newer Dell servers with newer Intel 10G
chips rejected them.

We shipped out servers to a customer, who only after shipment said they
wanted 10G rather than 1G connections, and asked if they could install
an SFP+ they had on hand (it was a telephone company ISP, they had
lots), and we said "sure" and proceeded to go through lots of
troubleshooting, with them swapping modules, before it got to me and I
checked and saw the Linux kernel rejecting the modules.  Embarrassing
for us.

-- 
Chris Adams 
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Re: Firefox - detection of exiting tabs with URLs

2023-05-12 Thread Patrick O'Callaghan
On Fri, 2023-05-12 at 23:27 +0930, Tim via users wrote:
> On Fri, 2023-05-12 at 11:38 +0100, Patrick O'Callaghan wrote:
> > Looks like you should report this upstream. I doubt it's a Fedora
> > bug.
> > 
> > poc
> 
> POC, you didn't trim your quotes!  ;-)
> 
> I had to wait a long time to get that joke in.

Mea culpa :-)

poc
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Re: F38/Xfce - background DNF checks still going

2023-05-12 Thread Samuel Sieb

On 5/12/23 14:08, Robert Moskowitz wrote:



On 5/12/23 13:20, Samuel Sieb wrote:

On 5/12/23 10:08, Robert Moskowitz wrote:



On 5/11/23 05:56, Patrick O'Callaghan wrote:

On Thu, 2023-05-11 at 19:13 +0930, Tim via users wrote:

On Wed, 2023-05-10 at 16:41 -0400, Robert Moskowitz wrote:

I thought I disabled dnfdragona from doing its 3? hour check for
anything new.  But whenever I do a "dnf update" I see it starting
with a
message like:

If you don't use dnf-dragora you don't need it installed.  I always
disabled it, then finally decided to remove it the other day.

I didn't want its interrupting notices, and never used to it to
install
anything.  I always did a "dnf update" on the command line at a time
of my own choosing.

Same here.


Looks like I am going to have to just uninstall dhf-dragora.

Even after

systemctl disable dnf-makecache.timer

Still got

dnf update
Last metadata expiration check: 0:18:17 ago on Fri 12 May 2023 
12:45:30 PM EDT.


Look in the logs to see what's triggering that.


unless I am looking in the wrong log, I am not seeing what is the trigger:

# tail dnf.log -n20


That's the wrong log.  The dnf log won't tell you what started dnf.  You 
need to look in the journal.

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Re: Poweroff on Fedora 37

2023-05-12 Thread Samuel Sieb

On 5/12/23 13:58, Jeffrey Walton wrote:

On Fri, May 12, 2023 at 4:52 PM Joe Zeff  wrote:


On 05/12/2023 02:36 PM, Jeffrey Walton wrote:

Unfortunately, shutdown and reboot are not Posix commands, so they
don't have specified behavior:
https://pubs.opengroup.org/onlinepubs/9699919799/idx/utilities.html


That may be, but shutdown, at least has a man page.


So does the hostname command, but it no longer works, either.

It would not bother me if systemd reimplemented the commands, and then
replaced a command with a systemd equivalent, like hostname calling
hostnamectl. But the systemd folks just broke it without a care.


What isn't working?  I've never had any problems with any of those commands.
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Re: Poweroff on Fedora 37

2023-05-12 Thread Joe Zeff

On 05/12/2023 02:58 PM, Jeffrey Walton wrote:

So does the hostname command, but it no longer works, either.


I just tried the basic command, and it worked just fine.  What doesn't 
it do for you that it's supposed to?

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Re: F38/Xfce - background DNF checks still going

2023-05-12 Thread Robert Moskowitz



On 5/12/23 13:20, Samuel Sieb wrote:

On 5/12/23 10:08, Robert Moskowitz wrote:



On 5/11/23 05:56, Patrick O'Callaghan wrote:

On Thu, 2023-05-11 at 19:13 +0930, Tim via users wrote:

On Wed, 2023-05-10 at 16:41 -0400, Robert Moskowitz wrote:

I thought I disabled dnfdragona from doing its 3? hour check for
anything new.  But whenever I do a "dnf update" I see it starting
with a
message like:

If you don't use dnf-dragora you don't need it installed.  I always
disabled it, then finally decided to remove it the other day.

I didn't want its interrupting notices, and never used to it to
install
anything.  I always did a "dnf update" on the command line at a time
of my own choosing.

Same here.


Looks like I am going to have to just uninstall dhf-dragora.

Even after

systemctl disable dnf-makecache.timer

Still got

dnf update
Last metadata expiration check: 0:18:17 ago on Fri 12 May 2023 
12:45:30 PM EDT.


Look in the logs to see what's triggering that.


unless I am looking in the wrong log, I am not seeing what is the trigger:

# tail dnf.log -n20
2023-05-12T16:25:47-0400 DEBUG reviving: 'updates' can be revived - 
metalink checksums match.
2023-05-12T16:25:49-0400 DEBUG updates: using metadata from Fri 12 May 
2023 12:04:00 AM EDT.
2023-05-12T16:25:49-0400 DEBUG countme: no event for updates-modular: 
window already counted
2023-05-12T16:25:49-0400 DEBUG reviving: 'updates-modular' can be 
revived - metalink checksums match.
2023-05-12T16:25:49-0400 DEBUG updates-modular: using metadata from Tue 
20 Feb 2018 02:18:14 PM EST.
2023-05-12T16:25:49-0400 DEBUG reviving: 'rpmfusion-free' can be revived 
- metalink checksums match.
2023-05-12T16:25:49-0400 DEBUG rpmfusion-free: using metadata from Fri 
14 Apr 2023 07:37:11 AM EDT.
2023-05-12T16:25:50-0400 DEBUG reviving: failed for 
'rpmfusion-free-updates', mismatched sha256 sum.
2023-05-12T16:25:50-0400 DEBUG repo: downloading from remote: 
rpmfusion-free-updates
2023-05-12T16:25:52-0400 DEBUG rpmfusion-free-updates: using metadata 
from Fri 12 May 2023 02:06:31 PM EDT.
2023-05-12T16:25:52-0400 DEBUG reviving: 'rpmfusion-nonfree' can be 
revived - metalink checksums match.
2023-05-12T16:25:52-0400 DEBUG rpmfusion-nonfree: using metadata from 
Fri 14 Apr 2023 08:02:51 AM EDT.
2023-05-12T16:25:52-0400 DEBUG reviving: 'rpmfusion-nonfree-updates' can 
be revived - metalink checksums match.
2023-05-12T16:25:52-0400 DEBUG rpmfusion-nonfree-updates: using metadata 
from Sun 07 May 2023 06:10:36 PM EDT.
2023-05-12T16:25:52-0400 DEBUG User-Agent: constructed: 'libdnf (Fedora 
Linux 38; generic; Linux.x86_64)'

2023-05-12T16:25:53-0400 DDEBUG timer: sack setup: 10695 ms
2023-05-12T16:25:53-0400 DEBUG Completion plugin: Generating completion 
cache...

2023-05-12T16:25:56-0400 INFO Metadata cache created.
2023-05-12T16:25:56-0400 DDEBUG Cleaning up.
2023-05-12T16:25:56-0400 DDEBUG Plugins were unloaded.
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Re: Poweroff on Fedora 37

2023-05-12 Thread Jeffrey Walton
On Fri, May 12, 2023 at 4:52 PM Joe Zeff  wrote:
>
> On 05/12/2023 02:36 PM, Jeffrey Walton wrote:
> > Unfortunately, shutdown and reboot are not Posix commands, so they
> > don't have specified behavior:
> > https://pubs.opengroup.org/onlinepubs/9699919799/idx/utilities.html
>
> That may be, but shutdown, at least has a man page.

So does the hostname command, but it no longer works, either.

It would not bother me if systemd reimplemented the commands, and then
replaced a command with a systemd equivalent, like hostname calling
hostnamectl. But the systemd folks just broke it without a care.

Jeff
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Re: Poweroff on Fedora 37

2023-05-12 Thread Joe Zeff

On 05/12/2023 02:36 PM, Jeffrey Walton wrote:

Unfortunately, shutdown and reboot are not Posix commands, so they
don't have specified behavior:
https://pubs.opengroup.org/onlinepubs/9699919799/idx/utilities.html


That may be, but shutdown, at least has a man page.
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Re: Poweroff on Fedora 37

2023-05-12 Thread Jeffrey Walton
On Fri, May 12, 2023 at 3:25 AM Andras Simon  wrote:
>
> 2023-05-04 12:58 UTC+02:00, t_pol :
> > Frequently "systemctl poweroff" does NOT really "power off" the machine but
> > simply halts the system.
>
> Does
>
> shutdown -h now
>
> work? If yes, would it be an adequate replacement? If no, I'd look
> into the log files for a clue.

I always thought `shutdown` was the original, and systemd was the
replacement with Poettering-specified behavior :)

Unfortunately, shutdown and reboot are not Posix commands, so they
don't have specified behavior:
https://pubs.opengroup.org/onlinepubs/9699919799/idx/utilities.html

Jeff
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Ian Pilcher

On 5/12/23 10:51, Thomas Cameron wrote:
I generally agree, but I was leaning towards consumer grade this time 
primarily for noise reasons. Enterprise class gear is just noisy as 
heck, and I am trying to keep the noise levels down in my home office. 
It's already pretty loud with the Proliants. Enterprise class switches 
with SFP+ modules are usually loud as heck, and expensive - you have to 
buy the SFP+ modules in addition to the switches. That adds up pretty 
quick for a home lab. Gotta keep the bride happy, you know?


For short runs, you can use DAC cables; no need for separate SFP+
modules.  FS.com has 2m 10G DAC cables for $14.

(Just make sure that their coded properly for the hardware that you're
going to use them with.)

--

Google  Where SkyNet meets Idiocracy


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Re: Poweroff on Fedora 37

2023-05-12 Thread t_pol
Thanks Roger,
I'll try that.
Angelo


On Fri, 12 May 2023 13:02:24 -0500
Roger Heflin  wrote:

> you could do this and see if this works.
> 
> stop all apps you care about and then:
> sync
> echo o > /proc/sysrq-trigger
> 
> That will call the kernel directly and immediately power the machine
> off, if that does not work then the kernel itself does not know how to
> power it off.
> 
> And if that does not work, then the fix would be to find a kernel
> option that changes how the machine gets powered off.  There used to
> be options to do that, I don't know if they are still around.
> 
> 
> On Fri, May 12, 2023 at 11:59 AM Patrick Mansfield via users
>  wrote:
> >
> > On Fri, May 12, 2023 at 03:00:26PM +0200, t_pol wrote:  
> > > On Fri, 12 May 2023 09:23:51 +0200
> > > Andras Simon  wrote:
> > >
> > > Thanks for your answer Andras,
> > >
> > > To be honest that was the command I've always used
> > > before "systemd" came along.
> > > I don't know if it gives the same problem.
> > > I'm gonna try it.
> > >
> > > BTW. Didn't find anything in the log files (journal).
> > >
> > > Ciao,
> > > Angelo
> > >
> > >  
> > > > 2023-05-04 12:58 UTC+02:00, t_pol :  
> > > > > Hi all.
> > > > >
> > > > > Frequently "systemctl poweroff" does NOT really "power off"
> > > > > the machine but simply halts the system.  
> > > >
> > > > Does
> > > >
> > > > shutdown -h now
> > > >
> > > > work? If yes, would it be an adequate replacement? If no, I'd
> > > > look into the log files for a clue.  
> >
> > shutdown -h is documented as the same thing as poweroff.
> >
> > It could be a hardware / BIOS issue, or whatever it is in the
> > kernel that sends the commands to your hardware.
> >
> > But if it's random ¯\_(ツ)_/¯
> >
> > I have some supermicro systems I use that sometimes don't power
> > off, even though AFAICT they are configured the same as others that
> > power off reliably.
> >
> > -- Patrick
> > ___
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Re: Poweroff on Fedora 37

2023-05-12 Thread Roger Heflin
you could do this and see if this works.

stop all apps you care about and then:
sync
echo o > /proc/sysrq-trigger

That will call the kernel directly and immediately power the machine
off, if that does not work then the kernel itself does not know how to
power it off.

And if that does not work, then the fix would be to find a kernel
option that changes how the machine gets powered off.  There used to
be options to do that, I don't know if they are still around.


On Fri, May 12, 2023 at 11:59 AM Patrick Mansfield via users
 wrote:
>
> On Fri, May 12, 2023 at 03:00:26PM +0200, t_pol wrote:
> > On Fri, 12 May 2023 09:23:51 +0200
> > Andras Simon  wrote:
> >
> > Thanks for your answer Andras,
> >
> > To be honest that was the command I've always used
> > before "systemd" came along.
> > I don't know if it gives the same problem.
> > I'm gonna try it.
> >
> > BTW. Didn't find anything in the log files (journal).
> >
> > Ciao,
> > Angelo
> >
> >
> > > 2023-05-04 12:58 UTC+02:00, t_pol :
> > > > Hi all.
> > > >
> > > > Frequently "systemctl poweroff" does NOT really "power off" the
> > > > machine but simply halts the system.
> > >
> > > Does
> > >
> > > shutdown -h now
> > >
> > > work? If yes, would it be an adequate replacement? If no, I'd look
> > > into the log files for a clue.
>
> shutdown -h is documented as the same thing as poweroff.
>
> It could be a hardware / BIOS issue, or whatever it is in the kernel that 
> sends the
> commands to your hardware.
>
> But if it's random ¯\_(ツ)_/¯
>
> I have some supermicro systems I use that sometimes don't power off, even 
> though AFAICT
> they are configured the same as others that power off reliably.
>
> -- Patrick
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Re: Firefox - detection of exiting tabs with URLs

2023-05-12 Thread Samuel Sieb

On 5/12/23 00:54, lejeczek via users wrote:



On 10/05/2023 22:17, Samuel Sieb wrote:

On 5/10/23 12:47, Tim via users wrote:

On Wed, 2023-05-10 at 13:04 +0200, lejeczek via users wrote:

With f38 I think my Firefox is unable to detect or is ignoring tabs
which are already opened in other windows with certain URL, when I
open a new tab and want to go to a website/URL.
  I think Firefox would then say, would offer something like "switch
to tab".


In the past I'd noticed a behaviour that if I opened a blank tab and
typed in something like facebook, let auto-complete do its thing and
picked something from the drop-down list that appeared below the
address bar from its history, I'd often see the browser whiz over to an
existing tab which already had that site loaded.  It was that or a very
similar kind of situation.


Look carefully at the item you're clicking.  Watch for the tag that 
says "Switch to Tab".

___

Yes, that is exactly what we are saying, I was as the originator of this 
thread.


Sorry, reading back now I see that was what you said, but I 
misunderstood it.  I haven't noticed any problem, it works when I've 
wanted it to.  It doesn't offer for any private tabs though.

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Re: F38/Xfce - background DNF checks still going

2023-05-12 Thread Samuel Sieb

On 5/12/23 10:08, Robert Moskowitz wrote:



On 5/11/23 05:56, Patrick O'Callaghan wrote:

On Thu, 2023-05-11 at 19:13 +0930, Tim via users wrote:

On Wed, 2023-05-10 at 16:41 -0400, Robert Moskowitz wrote:

I thought I disabled dnfdragona from doing its 3? hour check for
anything new.  But whenever I do a "dnf update" I see it starting
with a
message like:

If you don't use dnf-dragora you don't need it installed.  I always
disabled it, then finally decided to remove it the other day.

I didn't want its interrupting notices, and never used to it to
install
anything.  I always did a "dnf update" on the command line at a time
of my own choosing.

Same here.


Looks like I am going to have to just uninstall dhf-dragora.

Even after

systemctl disable dnf-makecache.timer

Still got

dnf update
Last metadata expiration check: 0:18:17 ago on Fri 12 May 2023 12:45:30 
PM EDT.


Look in the logs to see what's triggering that.
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Re: F38/Xfce - background DNF checks still going

2023-05-12 Thread Robert Moskowitz



On 5/11/23 05:56, Patrick O'Callaghan wrote:

On Thu, 2023-05-11 at 19:13 +0930, Tim via users wrote:

On Wed, 2023-05-10 at 16:41 -0400, Robert Moskowitz wrote:

I thought I disabled dnfdragona from doing its 3? hour check for
anything new.  But whenever I do a "dnf update" I see it starting
with a
message like:

If you don't use dnf-dragora you don't need it installed.  I always
disabled it, then finally decided to remove it the other day.

I didn't want its interrupting notices, and never used to it to
install
anything.  I always did a "dnf update" on the command line at a time
of my own choosing.

Same here.


Looks like I am going to have to just uninstall dhf-dragora.

Even after

systemctl disable dnf-makecache.timer

Still got

dnf update
Last metadata expiration check: 0:18:17 ago on Fri 12 May 2023 12:45:30 
PM EDT.


ARGH!!!  wasting cycles and bandwidth for what?
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Re: Poweroff on Fedora 37

2023-05-12 Thread Patrick Mansfield via users
On Fri, May 12, 2023 at 03:00:26PM +0200, t_pol wrote:
> On Fri, 12 May 2023 09:23:51 +0200
> Andras Simon  wrote:
> 
> Thanks for your answer Andras,
> 
> To be honest that was the command I've always used
> before "systemd" came along.
> I don't know if it gives the same problem.
> I'm gonna try it.
> 
> BTW. Didn't find anything in the log files (journal).
> 
> Ciao,
> Angelo
> 
> 
> > 2023-05-04 12:58 UTC+02:00, t_pol :
> > > Hi all.
> > >
> > > Frequently "systemctl poweroff" does NOT really "power off" the
> > > machine but simply halts the system.  
> > 
> > Does
> > 
> > shutdown -h now
> > 
> > work? If yes, would it be an adequate replacement? If no, I'd look
> > into the log files for a clue.

shutdown -h is documented as the same thing as poweroff.

It could be a hardware / BIOS issue, or whatever it is in the kernel that sends 
the
commands to your hardware.

But if it's random ¯\_(ツ)_/¯

I have some supermicro systems I use that sometimes don't power off, even 
though AFAICT
they are configured the same as others that power off reliably.

-- Patrick
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 10:39, Roger Heflin wrote:

yes, that would give way more speed if those desktops need that kind of speed.


"Need" is relative. ;-) But I use one of the servers as a hypervisor for 
testing stuff, and the other is a file server. I'm mostly thinking about 
the file server, that's where I export /home and then mount it on my 
desktop. I'd like that to be faster.



I have had bad enough luck with consumer grade SATA/SAS cards and nic
cards that the used enterprise grade of either is a lot more likely to
work reliably.


I generally do the same thing, my enterprise gear is all used and I have 
a vendor in Houston I have had really good luck with (ServerMonkey).



I won't touch a consumer brand of that sort of stuff (unless it comes
with the MB) simply because when I need a card I can get a used
enterprise for about the same price and know that it will work.


I generally agree, but I was leaning towards consumer grade this time 
primarily for noise reasons. Enterprise class gear is just noisy as 
heck, and I am trying to keep the noise levels down in my home office. 
It's already pretty loud with the Proliants. Enterprise class switches 
with SFP+ modules are usually loud as heck, and expensive - you have to 
buy the SFP+ modules in addition to the switches. That adds up pretty 
quick for a home lab. Gotta keep the bride happy, you know?


Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Roger Heflin
yes, that would give way more speed if those desktops need that kind of speed.

I have had bad enough luck with consumer grade SATA/SAS cards and nic
cards that the used enterprise grade of either is a lot more likely to
work reliably.

I won't touch a consumer brand of that sort of stuff (unless it comes
with the MB) simply because when I need a card I can get a used
enterprise for about the same price and know that it will work.

On Fri, May 12, 2023 at 10:35 AM Thomas Cameron
 wrote:
>
> On 5/12/23 10:14, Roger Heflin wrote:
> > Given that hardware, buy something like this instead.
> >
> > used, but better class of card.
> >
> > https://www.newegg.com/intel-e10g42bt/p/N82E16833106075?Description=10gbit%20card_re=10gbit_card-_-33-106-075-_-Product=true
> >
> > or something similar from the used sellers.  There seem to be a decent
> > variety of cards under $100.
> >
> > Manufacturers that are good are HPE/DELL/Intel/Broadcom/IBM/Lenovo.
> > But you do need to do a bit of research on the given cards to see what
> > the real chipset is.  Avoid Emulex/Be2net variants they have "issues".
> > Intel/Broadcom/Mellanox based cards are good.
>
> This is awesome, thank you very much! I'm still trying to get up to
> speed on 10G networking, I genuinely appreciate this advice.
>
> With that two port card, I could get three and just run direct cables
> from my desktop to the servers, then a cable between the servers. No
> switch required, and it would be fast as heck.
>
> Thanks!
> Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 10:19, Roger Heflin wrote:

And also given your hw, limit your interrupt count to the number of
cores on a single socket, the interrupts will typically only happen on
the local socket the given pci bus is attached to, and you would need
to determine if different cards have their PCI buses connected to
different sockets.


Will do, thanks.


Which model of proliant is that?   Note I have used/debugged/optimized
dl360/dl380/dl560/dl580/dl980 gen7/8/9/10/11(testing).


Currently Gen 8 DL380 with 12 3.5" disks. I'm about to upgrade to a 
couple of Gen 9 servers and probably retire/sell the Gen 8s.


Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 10:14, Roger Heflin wrote:

Given that hardware, buy something like this instead.

used, but better class of card.

https://www.newegg.com/intel-e10g42bt/p/N82E16833106075?Description=10gbit%20card_re=10gbit_card-_-33-106-075-_-Product=true

or something similar from the used sellers.  There seem to be a decent
variety of cards under $100.

Manufacturers that are good are HPE/DELL/Intel/Broadcom/IBM/Lenovo.
But you do need to do a bit of research on the given cards to see what
the real chipset is.  Avoid Emulex/Be2net variants they have "issues".
Intel/Broadcom/Mellanox based cards are good.


This is awesome, thank you very much! I'm still trying to get up to 
speed on 10G networking, I genuinely appreciate this advice.


With that two port card, I could get three and just run direct cables 
from my desktop to the servers, then a cable between the servers. No 
switch required, and it would be fast as heck.


Thanks!
Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Roger Heflin
And also given your hw, limit your interrupt count to the number of
cores on a single socket, the interrupts will typically only happen on
the local socket the given pci bus is attached to, and you would need
to determine if different cards have their PCI buses connected to
different sockets.

Which model of proliant is that?   Note I have used/debugged/optimized
dl360/dl380/dl560/dl580/dl980 gen7/8/9/10/11(testing).

On Fri, May 12, 2023 at 10:14 AM Roger Heflin  wrote:
>
> Given that hardware, buy something like this instead.
>
> used, but better class of card.
>
> https://www.newegg.com/intel-e10g42bt/p/N82E16833106075?Description=10gbit%20card_re=10gbit_card-_-33-106-075-_-Product=true
>
> or something similar from the used sellers.  There seem to be a decent
> variety of cards under $100.
>
> Manufacturers that are good are HPE/DELL/Intel/Broadcom/IBM/Lenovo.
> But you do need to do a bit of research on the given cards to see what
> the real chipset is.  Avoid Emulex/Be2net variants they have "issues".
> Intel/Broadcom/Mellanox based cards are good.
>
> On Fri, May 12, 2023 at 10:06 AM Thomas Cameron
>  wrote:
> >
> > On 5/12/23 09:41, Roger Heflin wrote:
> > > I have work experience with Intel 10Gbit, Older Emulex 10GB (be[23]net
> > > driver), current Broadcom 10/25G and Mellanox 10/25G.
> > >
> > > Note that for it to be useful you*MUST*  have multiple interrupts.
> > > 1Gbit interfaces used to hit a limit at around 50Mbit (the cpu was not
> > > fast enough to do the required data moves on a single core to go much
> > > faster).  Given the cpus are faster now the limit is probably up to
> > > 1Gbit/sec/interrupt.
> > >
> > > I have had to set nic adaptors to use a layer-3 data -> interrupt so
> > > that you can get higher rates (ethtool setting) only available on some
> > > nic cards.
> > >
> > > I have also had to set the interrupt number (ethtool setting), note
> > > that it is rather pointless to have the interrupt count higher than
> > > the number of real cores.  And likely you want the interrupt count for
> > > the disk controllers being used + the nic interrupts <= the number of
> > > cores.
> > >
> > > At home I question the value of it.   You might even simply test your
> > > nfs home setup and see if you can even get close to Gbit speeds,
> > > unless you have a newer machine and a good underlying disk setup you
> > > probably aren't going to get there.  And you also need a decent Gbit
> > > card, but if you do not have a decent gbit card, you can buy a used
> > > enterprise grade dual gbit card for around $25 (branded Dell or
> > > branded HPE).
> > >
> > > With enterprise grade hw and good disk and other parts one can hit
> > > 115-125MBytes/sec.
> > >
> > > With a new machine at home and a 7-disk raid-6 setup with a good gbit
> > > nic card I can get 115-125MB/sec when data is in cache, but not coming
> > > directly off of disk, unless the disk is an ssd and reading large
> > > files.  My prior machine could not hit that rate but was 10 year old
> > > hw.
> > >
> > > To use a 10Gbit interface you will have to have multiple machines
> > > doing large file sequential io (assuming they are wireless or gbit
> > > interfaces) at the same time.
> > >
> > > I doubt you are going to gain enough (or possibly any) to make it
> > > worth the cost or the trouble to get it working.
> > >
> > > Install sar and configure it to sample at 1minute and sar -n DEV will
> > > show you your network rates, if you aren't currently sustaining
> > > 115MByte/sec every so often then 10gbit is not going to do anything
> > > for you.
> >
> > My home office has a couple of HP Proliant servers with big (12 SAS
> > drives) RAID arrays and dual CPU E5-2697 v2 processors with 24 cores
> > each (48 cores total in the machine). I can sustain 1.6Gb/sec reads and
> > writes, tested via dd with oflag=dsync and also with fio.
> >
> > So with consumer grade NICs on the Proliants and my workstation
> > (https://www.amazon.com/TP-Link-TX401-Ethernet-Supports-Including/dp/B08D71PVXG/),
> > I suspect it will give me better performance than the 1Gb ethernet I'm
> > currently using. Will it be as amazing as high end enterprise gear? Most
> > likely not. Will it be better than 1Gb ethernet I'm currently using? I
> > suspect so.
> >
> > I appreciate the advice, I'll definitely play around with the settings
> > to make sure I'm using enough cores.
> >
> > Thomas
> > ___
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Chris Adams
Once upon a time, Roger Heflin  said:
> To use a 10Gbit interface you will have to have multiple machines
> doing large file sequential io (assuming they are wireless or gbit
> interfaces) at the same time.

I disagree.  Both my home "server" and desktop are regular desktop
motherboards (well, "gaming" models because those usually have more
ports), with Ryzen CPUs (nothing particularly fancy).  The server has 3
NAS-type SATA drives in Linux md RAID5, with an NVMe read cache on the
LVM pool.  I just picked a random large file that wasn't in the cache
and did a dd over the NFS and got 199 MB/s - hot cache it was 1.2 GB/s.

This is with zero effort at tuning the network interfaces (managing
interrupts or any ethtool-type settings), or even really doing much to
try to improve NAS speed (like using more and/or faster drives).  Modern
systems can easily surpass what a 1 gigabit NIC can do.

-- 
Chris Adams 
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Roger Heflin
Given that hardware, buy something like this instead.

used, but better class of card.

https://www.newegg.com/intel-e10g42bt/p/N82E16833106075?Description=10gbit%20card_re=10gbit_card-_-33-106-075-_-Product=true

or something similar from the used sellers.  There seem to be a decent
variety of cards under $100.

Manufacturers that are good are HPE/DELL/Intel/Broadcom/IBM/Lenovo.
But you do need to do a bit of research on the given cards to see what
the real chipset is.  Avoid Emulex/Be2net variants they have "issues".
Intel/Broadcom/Mellanox based cards are good.

On Fri, May 12, 2023 at 10:06 AM Thomas Cameron
 wrote:
>
> On 5/12/23 09:41, Roger Heflin wrote:
> > I have work experience with Intel 10Gbit, Older Emulex 10GB (be[23]net
> > driver), current Broadcom 10/25G and Mellanox 10/25G.
> >
> > Note that for it to be useful you*MUST*  have multiple interrupts.
> > 1Gbit interfaces used to hit a limit at around 50Mbit (the cpu was not
> > fast enough to do the required data moves on a single core to go much
> > faster).  Given the cpus are faster now the limit is probably up to
> > 1Gbit/sec/interrupt.
> >
> > I have had to set nic adaptors to use a layer-3 data -> interrupt so
> > that you can get higher rates (ethtool setting) only available on some
> > nic cards.
> >
> > I have also had to set the interrupt number (ethtool setting), note
> > that it is rather pointless to have the interrupt count higher than
> > the number of real cores.  And likely you want the interrupt count for
> > the disk controllers being used + the nic interrupts <= the number of
> > cores.
> >
> > At home I question the value of it.   You might even simply test your
> > nfs home setup and see if you can even get close to Gbit speeds,
> > unless you have a newer machine and a good underlying disk setup you
> > probably aren't going to get there.  And you also need a decent Gbit
> > card, but if you do not have a decent gbit card, you can buy a used
> > enterprise grade dual gbit card for around $25 (branded Dell or
> > branded HPE).
> >
> > With enterprise grade hw and good disk and other parts one can hit
> > 115-125MBytes/sec.
> >
> > With a new machine at home and a 7-disk raid-6 setup with a good gbit
> > nic card I can get 115-125MB/sec when data is in cache, but not coming
> > directly off of disk, unless the disk is an ssd and reading large
> > files.  My prior machine could not hit that rate but was 10 year old
> > hw.
> >
> > To use a 10Gbit interface you will have to have multiple machines
> > doing large file sequential io (assuming they are wireless or gbit
> > interfaces) at the same time.
> >
> > I doubt you are going to gain enough (or possibly any) to make it
> > worth the cost or the trouble to get it working.
> >
> > Install sar and configure it to sample at 1minute and sar -n DEV will
> > show you your network rates, if you aren't currently sustaining
> > 115MByte/sec every so often then 10gbit is not going to do anything
> > for you.
>
> My home office has a couple of HP Proliant servers with big (12 SAS
> drives) RAID arrays and dual CPU E5-2697 v2 processors with 24 cores
> each (48 cores total in the machine). I can sustain 1.6Gb/sec reads and
> writes, tested via dd with oflag=dsync and also with fio.
>
> So with consumer grade NICs on the Proliants and my workstation
> (https://www.amazon.com/TP-Link-TX401-Ethernet-Supports-Including/dp/B08D71PVXG/),
> I suspect it will give me better performance than the 1Gb ethernet I'm
> currently using. Will it be as amazing as high end enterprise gear? Most
> likely not. Will it be better than 1Gb ethernet I'm currently using? I
> suspect so.
>
> I appreciate the advice, I'll definitely play around with the settings
> to make sure I'm using enough cores.
>
> Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 10:03, Chris Adams wrote:

Once upon a time, Thomas Cameron  said:

Do you just use a copper SFP+ module like
https://www.ebay.com/itm/164322691847 in the Microtik? I'd love to
know what you use.


I used QFPTEK modules from Amazon, but any should do.  The Mikrotik does
run a little hot with them (it's passively cooled), but I have it
vertically mounted and it seems fine.


I was leaning towards this switch: 
https://www.amazon.com/TP-Link-TL-SX105-Wall-Mount-Protection-Auto-Negotiation/dp/B09CYNHL4S.
It looks super simple, it already has the copper interfaces so I
don't need SFP+ modules.


I went with the Mikrotik because I wanted a managed switch so I could
have VLANs.


My preference is to use plain old cat7 ethernet, like 10 foot cables
or so: 
https://www.amazon.com/AmazonBasics-High-Speed-Gigabit-Ethernet-Internet/dp/B07ZTQY9DD/


I went with some CableCreation "ultra thin" cat6A cables (makes for
easier cable routing and bundling).



This is gold, thank you so much! I've only used InfiniBand in my home 
network (got some really cheap 10G IB stuff) and it was really fast. I 
loved it. But I sold that stuff when I changed jobs, and I have a bad 
itch to get back to faster, but more modern networking.


Many thanks for your advice!

Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 09:41, Roger Heflin wrote:

I have work experience with Intel 10Gbit, Older Emulex 10GB (be[23]net
driver), current Broadcom 10/25G and Mellanox 10/25G.

Note that for it to be useful you*MUST*  have multiple interrupts.
1Gbit interfaces used to hit a limit at around 50Mbit (the cpu was not
fast enough to do the required data moves on a single core to go much
faster).  Given the cpus are faster now the limit is probably up to
1Gbit/sec/interrupt.

I have had to set nic adaptors to use a layer-3 data -> interrupt so
that you can get higher rates (ethtool setting) only available on some
nic cards.

I have also had to set the interrupt number (ethtool setting), note
that it is rather pointless to have the interrupt count higher than
the number of real cores.  And likely you want the interrupt count for
the disk controllers being used + the nic interrupts <= the number of
cores.

At home I question the value of it.   You might even simply test your
nfs home setup and see if you can even get close to Gbit speeds,
unless you have a newer machine and a good underlying disk setup you
probably aren't going to get there.  And you also need a decent Gbit
card, but if you do not have a decent gbit card, you can buy a used
enterprise grade dual gbit card for around $25 (branded Dell or
branded HPE).

With enterprise grade hw and good disk and other parts one can hit
115-125MBytes/sec.

With a new machine at home and a 7-disk raid-6 setup with a good gbit
nic card I can get 115-125MB/sec when data is in cache, but not coming
directly off of disk, unless the disk is an ssd and reading large
files.  My prior machine could not hit that rate but was 10 year old
hw.

To use a 10Gbit interface you will have to have multiple machines
doing large file sequential io (assuming they are wireless or gbit
interfaces) at the same time.

I doubt you are going to gain enough (or possibly any) to make it
worth the cost or the trouble to get it working.

Install sar and configure it to sample at 1minute and sar -n DEV will
show you your network rates, if you aren't currently sustaining
115MByte/sec every so often then 10gbit is not going to do anything
for you.


My home office has a couple of HP Proliant servers with big (12 SAS 
drives) RAID arrays and dual CPU E5-2697 v2 processors with 24 cores 
each (48 cores total in the machine). I can sustain 1.6Gb/sec reads and 
writes, tested via dd with oflag=dsync and also with fio.


So with consumer grade NICs on the Proliants and my workstation 
(https://www.amazon.com/TP-Link-TX401-Ethernet-Supports-Including/dp/B08D71PVXG/), 
I suspect it will give me better performance than the 1Gb ethernet I'm 
currently using. Will it be as amazing as high end enterprise gear? Most 
likely not. Will it be better than 1Gb ethernet I'm currently using? I 
suspect so.


I appreciate the advice, I'll definitely play around with the settings 
to make sure I'm using enough cores.


Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Chris Adams
Once upon a time, Thomas Cameron  said:
> Do you just use a copper SFP+ module like
> https://www.ebay.com/itm/164322691847 in the Microtik? I'd love to
> know what you use.

I used QFPTEK modules from Amazon, but any should do.  The Mikrotik does
run a little hot with them (it's passively cooled), but I have it
vertically mounted and it seems fine.

> I was leaning towards this switch: 
> https://www.amazon.com/TP-Link-TL-SX105-Wall-Mount-Protection-Auto-Negotiation/dp/B09CYNHL4S.
> It looks super simple, it already has the copper interfaces so I
> don't need SFP+ modules.

I went with the Mikrotik because I wanted a managed switch so I could
have VLANs.

> My preference is to use plain old cat7 ethernet, like 10 foot cables
> or so: 
> https://www.amazon.com/AmazonBasics-High-Speed-Gigabit-Ethernet-Internet/dp/B07ZTQY9DD/

I went with some CableCreation "ultra thin" cat6A cables (makes for
easier cable routing and bundling).

-- 
Chris Adams 
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Roger Heflin
I have work experience with Intel 10Gbit, Older Emulex 10GB (be[23]net
driver), current Broadcom 10/25G and Mellanox 10/25G.

Note that for it to be useful you *MUST* have multiple interrupts.
1Gbit interfaces used to hit a limit at around 50Mbit (the cpu was not
fast enough to do the required data moves on a single core to go much
faster).  Given the cpus are faster now the limit is probably up to
1Gbit/sec/interrupt.

I have had to set nic adaptors to use a layer-3 data -> interrupt so
that you can get higher rates (ethtool setting) only available on some
nic cards.

I have also had to set the interrupt number (ethtool setting), note
that it is rather pointless to have the interrupt count higher than
the number of real cores.  And likely you want the interrupt count for
the disk controllers being used + the nic interrupts <= the number of
cores.

At home I question the value of it.   You might even simply test your
nfs home setup and see if you can even get close to Gbit speeds,
unless you have a newer machine and a good underlying disk setup you
probably aren't going to get there.  And you also need a decent Gbit
card, but if you do not have a decent gbit card, you can buy a used
enterprise grade dual gbit card for around $25 (branded Dell or
branded HPE).

With enterprise grade hw and good disk and other parts one can hit
115-125MBytes/sec.

With a new machine at home and a 7-disk raid-6 setup with a good gbit
nic card I can get 115-125MB/sec when data is in cache, but not coming
directly off of disk, unless the disk is an ssd and reading large
files.  My prior machine could not hit that rate but was 10 year old
hw.

To use a 10Gbit interface you will have to have multiple machines
doing large file sequential io (assuming they are wireless or gbit
interfaces) at the same time.

I doubt you are going to gain enough (or possibly any) to make it
worth the cost or the trouble to get it working.

Install sar and configure it to sample at 1minute and sar -n DEV will
show you your network rates, if you aren't currently sustaining
115MByte/sec every so often then 10gbit is not going to do anything
for you.


On Fri, May 12, 2023 at 8:36 AM Thomas Cameron
 wrote:
>
> Howdy, all -
>
> I use an NFS server export to mount my /home directory on my desktop.
> I've got the itch to go to 10Gb ethernet, but I am reading that the
> tp-link tx401 has a problem with bridging, and I use bridging for KVM
> virtual machines on my desktop. I *think* that you can just disable
> using the command "ethtool -K  lro off," but I wondered if anyone
> had any experience with NICs that work with bridging out of the box.
>
> Anyone got any experience with 10Gb ethernet cards? Good? Bad? Hassles?
>
> Thomas
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

On 5/12/23 08:53, Chris Adams wrote:

I have a couple of these, one in my home server (which includes NFS) and
one in my primary desktop, connected through a Mikrotik CRS305 switch,
and the setup works fine.  I am using bridging on both systems (for
VMs), and that works fine as well.  Checking my interfaces, it looks
like LRO is already disabled (I'm guessing by the "atlantic" kernel
driver, as I haven't set any ethtool options).

I have experienced a couple of issues, both related to putting my
desktop to sleep when I'm not using it:

- Every once in a while, when I resume, the network is dead.  There's a
   kernel oops (that's kind of vague) and I have to reboot.  This isn't a
   huge problem, because it only seems to happen after a bunch of
   suspend/resume cycles, and I typically reboot for updates more often
   than it happens.

- I also run jumbo frames, and after a suspend/resume cycle, the MTU on
   the NIC resets to 1500 (while the bridge interface stays jumbo).  This
   breaks communication.  I don't know if the driver is expected to
   restore the MTU and isn't, but NetworkManager also doesn't seem to
   handle bridge+suspend/resume right; NICs show "connected (externally)"
   in nmcli after a suspend/resume, like NM loses management of them.
   I've just hacked around this by adding a dispatcher script to reset
   the MTU.


Do you just use a copper SFP+ module like 
https://www.ebay.com/itm/164322691847 in the Microtik? I'd love to know 
what you use.


I was leaning towards this switch: 
https://www.amazon.com/TP-Link-TL-SX105-Wall-Mount-Protection-Auto-Negotiation/dp/B09CYNHL4S. 
It looks super simple, it already has the copper interfaces so I don't 
need SFP+ modules.


My preference is to use plain old cat7 ethernet, like 10 foot cables or 
so: 
https://www.amazon.com/AmazonBasics-High-Speed-Gigabit-Ethernet-Internet/dp/B07ZTQY9DD/


Thomas
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Re: Firefox - detection of exiting tabs with URLs

2023-05-12 Thread Tim via users
On Fri, 2023-05-12 at 11:38 +0100, Patrick O'Callaghan wrote:
> Looks like you should report this upstream. I doubt it's a Fedora bug.
> 
> poc

POC, you didn't trim your quotes!  ;-)

I had to wait a long time to get that joke in.
 
-- 
 
NB:  All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the list.
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Re: Experience with 10Gb ethernet adapters?

2023-05-12 Thread Chris Adams
Once upon a time, Thomas Cameron  said:
> I use an NFS server export to mount my /home directory on my
> desktop. I've got the itch to go to 10Gb ethernet, but I am reading
> that the tp-link tx401 has a problem with bridging, and I use
> bridging for KVM virtual machines on my desktop. I *think* that you
> can just disable using the command "ethtool -K  lro off," but
> I wondered if anyone had any experience with NICs that work with
> bridging out of the box.

I have a couple of these, one in my home server (which includes NFS) and
one in my primary desktop, connected through a Mikrotik CRS305 switch,
and the setup works fine.  I am using bridging on both systems (for
VMs), and that works fine as well.  Checking my interfaces, it looks
like LRO is already disabled (I'm guessing by the "atlantic" kernel
driver, as I haven't set any ethtool options).

I have experienced a couple of issues, both related to putting my
desktop to sleep when I'm not using it:

- Every once in a while, when I resume, the network is dead.  There's a
  kernel oops (that's kind of vague) and I have to reboot.  This isn't a
  huge problem, because it only seems to happen after a bunch of
  suspend/resume cycles, and I typically reboot for updates more often
  than it happens.

- I also run jumbo frames, and after a suspend/resume cycle, the MTU on
  the NIC resets to 1500 (while the bridge interface stays jumbo).  This
  breaks communication.  I don't know if the driver is expected to
  restore the MTU and isn't, but NetworkManager also doesn't seem to
  handle bridge+suspend/resume right; NICs show "connected (externally)" 
  in nmcli after a suspend/resume, like NM loses management of them.
  I've just hacked around this by adding a dispatcher script to reset
  the MTU.

-- 
Chris Adams 
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Experience with 10Gb ethernet adapters?

2023-05-12 Thread Thomas Cameron

Howdy, all -

I use an NFS server export to mount my /home directory on my desktop. 
I've got the itch to go to 10Gb ethernet, but I am reading that the 
tp-link tx401 has a problem with bridging, and I use bridging for KVM 
virtual machines on my desktop. I *think* that you can just disable 
using the command "ethtool -K  lro off," but I wondered if anyone 
had any experience with NICs that work with bridging out of the box.


Anyone got any experience with 10Gb ethernet cards? Good? Bad? Hassles?

Thomas
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Re: Poweroff on Fedora 37

2023-05-12 Thread t_pol
On Fri, 12 May 2023 09:23:51 +0200
Andras Simon  wrote:

Thanks for your answer Andras,

To be honest that was the command I've always used
before "systemd" came along.
I don't know if it gives the same problem.
I'm gonna try it.

BTW. Didn't find anything in the log files (journal).

Ciao,
Angelo


> 2023-05-04 12:58 UTC+02:00, t_pol :
> > Hi all.
> >
> > Frequently "systemctl poweroff" does NOT really "power off" the
> > machine but simply halts the system.  
> 
> Does
> 
> shutdown -h now
> 
> work? If yes, would it be an adequate replacement? If no, I'd look
> into the log files for a clue.
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Re: Firefox - detection of exiting tabs with URLs

2023-05-12 Thread Patrick O'Callaghan
On Fri, 2023-05-12 at 09:54 +0200, lejeczek via users wrote:
> 
> 
> On 10/05/2023 22:17, Samuel Sieb wrote:
> > On 5/10/23 12:47, Tim via users wrote:
> > > On Wed, 2023-05-10 at 13:04 +0200, lejeczek via users wrote:
> > > > With f38 I think my Firefox is unable to detect or is 
> > > > ignoring tabs
> > > > which are already opened in other windows with certain 
> > > > URL, when I
> > > > open a new tab and want to go to a website/URL.
> > > >   I think Firefox would then say, would offer something 
> > > > like "switch
> > > > to tab".
> > > 
> > > In the past I'd noticed a behaviour that if I opened a 
> > > blank tab and
> > > typed in something like facebook, let auto-complete do 
> > > its thing and
> > > picked something from the drop-down list that appeared 
> > > below the
> > > address bar from its history, I'd often see the browser 
> > > whiz over to an
> > > existing tab which already had that site loaded.  It was 
> > > that or a very
> > > similar kind of situation.
> > 
> > Look carefully at the item you're clicking.  Watch for the 
> > tag that says "Switch to Tab".
> > ___
> > 
> Yes, that is exactly what we are saying, I was as the 
> originator of this thread.
> I can only add - to what I said which was "this 
> functionality is completely gone" - that now after a longer 
> look I see "Swtich to Tab" for some site/urls, sometimes! 
> but not the others.
> This would need to be thoroughly tested (probably something 
> only devel could do) to say, if there is pattern to it at 
> all or all this is purely random.
> Eg. I've had a window with a few tabs - my Firefox is set to 
> restore last sessions - _none_ of those tabs (sites/urls 
> were fully loaded after restoration I made sure of) was 
> detected as "Switch to Tab"
> I closed that window, opened a new one (made sure that no 
> other auto-started/restored window/tab had those sites in 
> question/example opened) and each site, one by one 
> loaded/opened, then tested in already existing window and 
> only ! then that window picked up, detected and offered 
> "Switch to Tab" to those sites.
> So, purely from consumer perspective I can say this 
> "feature" is bit flaky.

Looks like you should report this upstream. I doubt it's a Fedora bug.

poc
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Re: Firefox - detection of exiting tabs with URLs

2023-05-12 Thread lejeczek via users



On 10/05/2023 22:17, Samuel Sieb wrote:

On 5/10/23 12:47, Tim via users wrote:

On Wed, 2023-05-10 at 13:04 +0200, lejeczek via users wrote:
With f38 I think my Firefox is unable to detect or is 
ignoring tabs
which are already opened in other windows with certain 
URL, when I

open a new tab and want to go to a website/URL.
  I think Firefox would then say, would offer something 
like "switch

to tab".


In the past I'd noticed a behaviour that if I opened a 
blank tab and
typed in something like facebook, let auto-complete do 
its thing and
picked something from the drop-down list that appeared 
below the
address bar from its history, I'd often see the browser 
whiz over to an
existing tab which already had that site loaded.  It was 
that or a very

similar kind of situation.


Look carefully at the item you're clicking.  Watch for the 
tag that says "Switch to Tab".

___

Yes, that is exactly what we are saying, I was as the 
originator of this thread.
I can only add - to what I said which was "this 
functionality is completely gone" - that now after a longer 
look I see "Swtich to Tab" for some site/urls, sometimes! 
but not the others.
This would need to be thoroughly tested (probably something 
only devel could do) to say, if there is pattern to it at 
all or all this is purely random.
Eg. I've had a window with a few tabs - my Firefox is set to 
restore last sessions - _none_ of those tabs (sites/urls 
were fully loaded after restoration I made sure of) was 
detected as "Switch to Tab"
I closed that window, opened a new one (made sure that no 
other auto-started/restored window/tab had those sites in 
question/example opened) and each site, one by one 
loaded/opened, then tested in already existing window and 
only ! then that window picked up, detected and offered 
"Switch to Tab" to those sites.
So, purely from consumer perspective I can say this 
"feature" is bit flaky.


many thanks, L.
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Re: Poweroff on Fedora 37

2023-05-12 Thread Andras Simon
2023-05-04 12:58 UTC+02:00, t_pol :
> Hi all.
>
> Frequently "systemctl poweroff" does NOT really "power off" the machine but
> simply halts the system.

Does

shutdown -h now

work? If yes, would it be an adequate replacement? If no, I'd look
into the log files for a clue.
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