On Thu, Sep 19, 2013 at 03:54:34PM -0400, George Neville-Neil wrote:
On Sep 14, 2013, at 15:24 , Luigi Rizzo ri...@iet.unipi.it wrote:
On Saturday, September 14, 2013, Olivier Cochard-Labb? oliv...@cochard.me
wrote:
On Sat, Sep 14, 2013 at 4:28 PM, Luigi Rizzo ri...@iet.unipi.it
On Fri, Sep 13, 2013 at 11:08:27AM -0400, George Neville-Neil wrote:
On Aug 29, 2013, at 7:49 , Adrian Chadd adr...@freebsd.org wrote:
...
I still have some tool coding to do with PMC before I even think about
tinkering with this as I'd like to measure stuff like per-packet latency as
On Fri, Sep 13, 2013 at 11:08:27AM -0400, George Neville-Neil wrote:
On Aug 29, 2013, at 7:49 , Adrian Chadd adr...@freebsd.org wrote:
...
One quick note here. Every time you increase batching you may increase
bandwidth
but you will also increase per packet latency for the last packet in a
On Saturday, September 14, 2013, Olivier Cochard-Labbé oliv...@cochard.me
wrote:
On Sat, Sep 14, 2013 at 4:28 PM, Luigi Rizzo ri...@iet.unipi.it wrote:
IXIA ? For the timescales we need to address we don't need an IXIA,
a netmap sender is more than enough
The great netmap generates only one
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To unsubscribe, send any mail to freebsd-net-unsubscr...@freebsd.org
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-+---
Prof. Luigi RIZZO, ri
On Mon, Jun 10, 2013 at 06:52:01PM +0200, Ermal Lu?i wrote:
On Mon, Jun 10, 2013 at 5:01 PM, Luigi Rizzo ri...@iet.unipi.it wrote:
...
if i understand well, this has no runtime overhead as the ifp has
the index of the context it refers to ?
Or you need an additional IPFW_CTX_RLOCK
On Wed, Feb 06, 2013 at 06:19:27PM +0400, Alexander V. Chernikov wrote:
Hello list!
Today more and more NICs are capable of splitting traffic to different
Rx/TX rings permitting OS to dispatch this traffic on different CPU
cores. However, there are some problems that arises from using
On Wed, Feb 06, 2013 at 11:05:59AM -0500, George Neville-Neil wrote:
On Feb 6, 2013, at 09:37 , Luigi Rizzo ri...@iet.unipi.it wrote:
...
Linux has tried to come up with a common framework to implement
this kind of controls using ethtool, and we should probably
have a look
) and slow for
8n+(4,5,6,7).
cheers
luigi
/*
* Copyright (C) 2012 Luigi Rizzo. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions
On Wed, Aug 22, 2012 at 05:26:47PM +0300, Mitya wrote:
22.08.2012 17:36, Luigi Rizzo ??:
On Wed, Aug 22, 2012 at 02:32:21AM +, Bruce Evans wrote:
luigi wrote:
even more orthogonal:
I found that copying 8n + (5, 6 or 7) bytes was much much slower than
copying a multiple
On Wed, Aug 22, 2012 at 03:21:06PM -0400, John Baldwin wrote:
On Wednesday, August 22, 2012 2:54:07 pm Adrian Chadd wrote:
On 22 August 2012 05:02, John Baldwin j...@freebsd.org wrote:
On Tuesday, August 21, 2012 12:34:42 pm Adrian Chadd wrote:
Hi,
What about just creating an
On Tue, Aug 21, 2012 at 12:26:30PM +0200, Marius Strobl wrote:
...
Why we are use bcopy(), to copy only 6 bytes?
Answer - in some architectures we are can not directly copy unaligned data.
I propose this solution.
In file /usr/src/include/net/ethernet.h add this lines:
static
On Tue, Jul 03, 2012 at 08:11:14PM +0400, Alexander V. Chernikov wrote:
Hello list!
I'm quite stuck with bad forwarding performance on many FreeBSD boxes
doing firewalling.
...
In most cases system can forward no more than 700 (or 1400) kpps which
is quite a bad number (Linux does, say,
On Tue, Jul 03, 2012 at 09:37:38PM +0400, Alexander V. Chernikov wrote:
...
Thanks, another good point. I forgot to merge this option from andre's
patch.
Another 30-40-50kpps to win.
not much gain though.
What about the other IPSTAT_INC counters ?
I think the IPSTAT_INC macros were
On Wed, Jul 04, 2012 at 12:31:56AM +0400, Alexander V. Chernikov wrote:
On 04.07.2012 00:27, Luigi Rizzo wrote:
On Tue, Jul 03, 2012 at 09:37:38PM +0400, Alexander V. Chernikov wrote:
...
Thanks, another good point. I forgot to merge this option from andre's
patch.
Another 30-40-50kpps
On Mon, Apr 30, 2012 at 08:47:21AM -0700, Evan Martin wrote:
On Sat, Apr 28, 2012 at 7:47 AM, Luigi Rizzo ri...@iet.unipi.it wrote:
(hoping this is of interest for hackers- too)
One of the most annoying features of chromium is that it downloads
instead of displaying various types of files
(hoping this is of interest for hackers- too)
One of the most annoying features of chromium is that it downloads
instead of displaying various types of files (.c, .h and so on).
After a bit of investigation i found that at least for local files
you can override this by defining your preferred
On Wed, Mar 21, 2012 at 11:11:42PM +1000, Da Rock wrote:
...
In the meantime I think I may have stumbled on the solution to the
script: In the midst of all the output it mentions usage realpath [-q]
path. I wasn't 100% sure exactly what that meant, but I put the full
path to the iso and a
On Wed, Mar 21, 2012 at 10:52:53AM -0500, Mark Felder wrote:
As an alternative I recently purchased a Zalman ZM-VE200 device (there's
also a USB3.0 flavor) that lets you copy ISOs to it and it will emulate a
CDROM/DVDROM/BDROM for you so you never have to deal with this mess again.
It
On Thu, Mar 22, 2012 at 05:42:27PM +0100, Thomas Schmitt wrote:
Hi,
Vitaly Magerya vmage...@gmail.com:
you might want to try to dd the iso image directly onto USB instead; there
where talks that Ubuntu would support this starting at 11.10.
Da Rock
On Mon, Jan 30, 2012 at 01:01:13PM +0100, Ermal Lu?i wrote:
Hello,
from needs on pfSense a patch for allowing multiple intances of
ipfw(4) in kernel to co-exist was developed.
It can be found here
On Mon, Nov 21, 2011 at 01:23:22PM +0700, Eugene Grosbein wrote:
Hi!
I need to draw graph of dummynet's CPU usage.
procstat -t 0 shows me TID (thread id) of dummynet kernel thread.
ps -Hxo time,lwp shows me total CPU time consumed by this thread.
Now I see this time has 9 seconds increase
On Sun, Sep 18, 2011 at 03:19:46PM -0400, Arnaud Lacombe wrote:
Hi,
On Sat, Sep 17, 2011 at 4:32 PM, YongHyeon PYUN pyu...@gmail.com wrote:
On Sat, Sep 17, 2011 at 11:57:10AM +0430, Hooman Fazaeli wrote:
Hi list,
The data sheet for intel 82576 advertises IP TX/RX checksum offload
but
On Sun, Sep 18, 2011 at 06:05:33PM -0400, Arnaud Lacombe wrote:
Hi,
On Sun, Sep 18, 2011 at 5:06 PM, Luigi Rizzo ri...@iet.unipi.it wrote:
On Sun, Sep 18, 2011 at 03:19:46PM -0400, Arnaud Lacombe wrote:
Hi,
On Sat, Sep 17, 2011 at 4:32 PM, YongHyeon PYUN pyu...@gmail.com wrote
On Thu, Jul 14, 2011 at 01:22:49AM -0500, Zhihao Yuan wrote:
Hi hackers,
I'm doing my GSoC project, Multibyte Encoding Support in Nvi at
https://github.com/lichray/nvi2 . Currently, the editor can support
read/display/write multibyte encoding through iconv. Before adding
more features like
On Sat, Jun 11, 2011 at 04:49:17PM +0100, Robert Watson wrote:
On Mon, 6 Jun 2011, grarpamp wrote:
I know we've got polling. And probably MSI-X in a couple drivers. Pretty
sure there is still one CPU doing the interrupt work? And none of the
multiple queue thread spreading tech exists?
On Mon, Jun 06, 2011 at 10:13:51PM -0400, grarpamp wrote:
Is this work part of what's needed to enable the FreeBSD
equivalent of TNAPI?
I know we've got polling. And probably MSI-X in a couple drivers.
Pretty sure there is still one CPU doing the interrupt work?
And none of the multiple
In order to understand the bug discussed in the recent thread
(original message attached at the end), Tom Judge passed me the
dump of the boot sector around the bug.
The system giving trouble has the following configuration
Fresh transcript:
file1: ORIGINAL BOOT SECTOR
# boot0cfg -v ad0
On Tue, Jan 11, 2011 at 03:38:23AM +0300, Andrey V. Elsukov wrote:
On 11.01.2011 02:33, Luigi Rizzo wrote:
As a consequence, if we reboot without pressing an F-key, the system
boots from partition s1 even though the boot loader indicates F2.
skip
So, to summarize, I guess that a possible
On Sun, Jan 09, 2011 at 12:39:28AM -0600, Tom Judge wrote:
Hi,
Today I ran into an issue where setting the default slice with boot0cfg
-s is broken.
a few questions inline:
This is related to a section of this revision:
+ commit Warner's patch orb $NOUPDATE,_FLAGS(%bp)
to avoid
On Sun, Jan 09, 2011 at 12:57:24PM -0600, Tom Judge wrote:
On 09/01/2011 12:33, Luigi Rizzo wrote:
On Sun, Jan 09, 2011 at 12:39:28AM -0600, Tom Judge wrote:
Hi,
Today I ran into an issue where setting the default slice with boot0cfg
-s is broken.
a few questions inline:
Output
On Mon, Nov 08, 2010 at 04:47:40PM +0300, cronfy wrote:
Hello,
Might gsched(8) help ?
I am using 7.3, there is no gsched as far as I know..
it actually works just fine there, just take the code from
http://info.iet.unipi.it/~luigi/geom_sched/
cheers
luigi
I am going to try gjournal
On Thu, Jul 22, 2010 at 05:19:25PM +0200, Oliver Fromme wrote:
Ivan Voras ivo...@freebsd.org wrote:
On 07/13/10 06:15, Luigi Rizzo wrote:
Have fun, it would be great if you could report how it works
on fancy devices (iphone, ipad, androids...)
For what it's worth, it doesn't
On Wed, Jul 14, 2010 at 01:24:09AM +0200, Julian H. Stacey wrote:
Whoops I forgot cc hackers so resent.
Haven't used it in years, but I liked it when I used
ports/misc/magicpoint.
been there, done that:
http://info.iet.unipi.it/~luigi/mgpm/
cheers
luigi
Hey That's
On Mon, Jul 12, 2010 at 10:41:41PM -0700, Bakul Shah wrote:
On Tue, 13 Jul 2010 06:15:14 +0200 Luigi Rizzo ri...@iet.unipi.it wrote:
Maybe you all love powerpoint for presentations, but sometimes
one just needs to put together a few slides, perhaps a few bullets
or images grabbed around
On Tue, Jul 13, 2010 at 04:17:06PM +0300, Peter Pentchev wrote:
...
Nice work indeed!
Just as an aside, though - are you aware of Eric Meyer's S5,
also available in your friendly neighbourhood Ports Collection
as textproc/s5? :)
yes, there are many such things -- and i have done a fair
On Tue, Jul 13, 2010 at 04:36:50PM -, Larry Baird wrote:
In article 110613.02658.82...@localhost you wrote:
Maybe you all love powerpoint for presentations, but sometimes
one just needs to put together a few slides, perhaps a few bullets
or images grabbed around the net, so i was
Maybe you all love powerpoint for presentations, but sometimes
one just needs to put together a few slides, perhaps a few bullets
or images grabbed around the net, so i was wondering how hard
would it be to do something that accepts a plain text file
as input (without a ton of formatting) and lets
On Wed, Mar 03, 2010 at 12:44:06AM -0800, Garrett Cooper wrote:
...
Maxim,
Xin Li has a point. I ran some tests and the ad hoc parsing function
eats up more memory than expand_number(3) [*]:
as someone reminded me, a static library only brings in the archive
members you actually use, whereas
Someone just asked me permission to move to a 3-clause BSD
copyright some piece of software that I haven't touched in 10+ years.
I said yes, but then I was wondering what happens if the
person listed is not responding or not reachable anymore:
does copyright on source code expire, and if so, when
On Wed, Mar 25, 2009 at 05:31:52AM -0400, David Schultz wrote:
On Wed, Mar 25, 2009, Luigi Rizzo wrote:
Someone just asked me permission to move to a 3-clause BSD
copyright some piece of software that I haven't touched in 10+ years.
I said yes, but then I was wondering what happens
On Mon, Feb 02, 2009 at 08:42:32PM +0100, Christoph Mallon wrote:
Hi,
I compiled a list of all local variables in src/sys/ (r188000), which
are only written to, but never read. This is more than the GCC warning,
interesting list, thanks.
Also, 700 entries is not a bad result considering
On Mon, Dec 08, 2008 at 02:40:41PM -0800, Maxim Sobolev wrote:
Hi,
Below please find patch that enhances cdboot with two compile-time options:
...
Any comments/suggestions are appreciated. If there are no objections I
would like to commit the change. The long-term goal is to make
On Mon, Dec 08, 2008 at 04:29:04PM -0800, Maxim Sobolev wrote:
Luigi Rizzo wrote:
...
4. another nitpick -- the value you pass in %si to the MBR does not
seem to point to anything useful. As discussed about boot0.S and
the followup in the mailing lists, there seems to be no standard
On Tue, Dec 02, 2008 at 01:48:17PM +0200, Danny Braniss wrote:
latest pxeboot (7.1):
mother-boardNIC/LOM CPU
- --- ---
Intel SWV25 em xeonworks fine
SUN X2200bgeamd works fine
DELL PE 2950 bcexeon
I have updated my iso2flash.sh script so that now it can
convert both FreeBSD _and_ linux ISO images to flash images.
For the latter, it uses a FAT filesystem, and puts a linux
loader with syslinux, for which you can find a port at
http://info.iet.unipi.it/~luigi/FreeBSD/index.html#syslinux-port
Just in case people have a similar need, or can point me to better
code to do the same job:
i needed to convert a bootable FreeBSD iso image into a bootable
flash image, and have come up with the following code (derived
from PicoBSD). The nice part is that this is all done without
requiring root
On Sun, Mar 09, 2008 at 10:17:14AM +0100, Hans Petter Selasky wrote:
On Saturday 08 March 2008, Max Laier wrote:
Am Sa, 8.03.2008, 11:33, schrieb Hans Petter Selasky:
I'm planning to create a new socket type in FreeBSD called AF_Q921, which
is
to be used for ISDN telephony. Where do I
On Wed, Oct 17, 2007 at 03:09:35PM +0200, Ulf Lilleengen wrote:
... discussion on Hybrid vs. GEOM as a suitable location for
... pluggable disk schedulers
However, I'd hate to see the Hybrid effort go to waste :) I was hoping some
of the authors of the project would reply with their thoughts,
Hi,
Is there a tool to produce a dependency graph for C headers ?
If that matters (i.e. someone has already studied it),
i am interested in the header situation in the FreeBSD kernel.
It may be a well known thing, but i just realized
that sys/systm.h is entagled with sys/libkern.h and both bring
On Thu, Feb 01, 2007 at 11:38:51AM -0700, M. Warner Losh wrote:
In message: [EMAIL PROTECTED]
Peter Jeremy [EMAIL PROTECTED] writes:
: On Sun, 2007-Jan-28 10:39:36 -0600, Jon Passki wrote:
: If the machine is a PXE-compliant device [2], it should have a GUID/
: UUID [1]
On Sat, Aug 05, 2006 at 12:42:12AM +0100, Joao Barros wrote:
...
I patched and recompiled the kernel.
After booting I notice that no messages from ppp are logged by syslog
(messages|ppp.log)
What is your OS version ?
i hit a similar problem some time ago, and it seems that
the syslog client
On Mon, May 01, 2006 at 01:15:44PM +0300, Giorgos Keramidas wrote:
...
I'd certainly prefer it if the beep was turned *off* by default,
but I'm not sure if that's what everyone prefers. This is why I
opted for keeping the current behavior and making my personal
preference an option :)
i do
On Thu, Sep 15, 2005 at 06:45:27PM +0530, Pranav Peshwe wrote:
Hello,
Which is the I/O scheduler used by FBSD 5.4 ?
I googled in various ways but could not get an answer.
it is called FCFSUSIIABPIWCTTOIS, which stands for
First Come First Serve Unless Someone Is In A Better Position
On Thu, Sep 15, 2005 at 07:52:15PM +0530, Pranav Peshwe wrote:
...
Thank you very much for the name and the source
link.Is there any documentation available on this
topic(fbsd io schedulers) ?
Where is the io scheduler located in the
src code tree ?
see
I am afraid the existing code cannot help you.
The packets you see are encapsulated in 802.1q aka VLAN frames,
and since ipfw2 does not try to decapsulate the packets, you
don't get to see the IP headers.
Your most reasonable option would be to write a new ipufw2 opcode,
say something like
On Sat, Aug 13, 2005 at 12:49:56AM +0200, Jeremie Le Hen wrote:
Hi,
I am afraid the existing code cannot help you.
The packets you see are encapsulated in 802.1q aka VLAN frames,
and since ipfw2 does not try to decapsulate the packets, you
don't get to see the IP headers.
Your most
reading also the continuation of this mail thread, I wonder if there
is any relationship with this issue i found a few days ago debugging
asterisk. It happens when linking the code with libc_r, but maybe
some of the bugs in libc_r were also imported in other thread
libraries.
cheers
On Sat, Nov 06, 2004 at 11:21:23AM -0800, John-Mark Gurney wrote:
Devesh Shah wrote this message on Thu, Nov 04, 2004 at 15:22 -0800:
Based on the SYSINIT framework, I have made ULE scheduler as a loadable module but
have not quite
figured how to migrate from default 4bsd to newly loaded
On Sun, Sep 05, 2004 at 02:37:31PM -0700, Matthew Dillon wrote:
Well, wait a second... are we talking about a lot of packets being
discarded by the filter in 'normal' operation, or are we talking about
an attack? Because if we are takling about an attack the LAST ethernet
...
On Mon, Sep 06, 2004 at 12:52:49AM +0400, Gleb Smirnoff wrote:
Luigi,
I see that bridge callbacks are still living in if_ed.c
from FreeBSD 2.x times. See if_ed.c:2816. I think this is
not correct.
Bridge code is called from ether_input(), which is
indirectly called from if_ed.c:2836.
On Mon, Sep 06, 2004 at 03:01:00AM +0400, Gleb Smirnoff wrote:
...
L I'd rather not apply the patch unless you can show that
L the current code leads to incorrect behaviour.
I suspect that packets dropped by bridge_in() called from if_ed will
not be captured by bpf(4). This is incorrect.
if
On Fri, Jun 11, 2004 at 04:07:40PM +0200, Jens Schweikhardt wrote:
On Thu, Jun 10, 2004 at 09:53:07PM -0500, Chip Norkus wrote:
...
# normalize the code a bit. In doing so I discovered a few deficencies in
# the stock FreeBSD (5.2-CURRENT) indent and decided to fix them, I
# thought these
On Fri, Jun 11, 2004 at 05:20:19PM +0200, Jens Schweikhardt wrote:
...
Sigh. A request for a little bit of QA and an emoticon as well and
I'm criticised. I remember when I was not yet a committer that the
better I could demonstrate that the code has no ill-effect the more
chances some
On Wed, Jun 02, 2004 at 03:14:43PM -0700, Christian S.J. Peron wrote:
I understand what you are saying. The only real other choice
would be to copy out the entire cr_groups array. Do you know
if this copy would be more expensive then the mutex lock/unlock
associated with grabbing a
On Tue, Apr 06, 2004 at 08:26:00PM +0200, Jens Schweikhardt wrote:
Fellow hackers,
suppose you have a long list of files in a make variable V, exceeding
kern.argmax. This means there is no way you can write a rule where $(V)
is a command argument in any way shape or form. There is also no
On Wed, Mar 03, 2004 at 10:03:11AM -0500, Andrew Gallatin wrote:
Don Bowman writes:
I'm not sure what affect on fxp. fxp is inherently limited
by something internal to it, which prevents achieving
high packet rates. bge is the best chip, but doesn't
but you should not compare
On Wed, Mar 03, 2004 at 07:37:06AM +, Matt wrote:
Tried this on the ipfw list but didnt get any response.
Part of an app I am playing with needs to be able to add an ipfw
rule. I had though i got all of what i need from ipfw2.c and ip_fw.h
but I am painfully new to C and must be missing
hi,
browsing through the munmap() page, it says
Munmap() will fail if:
[EINVAL] The addr parameter was not page aligned, the len
...
now, i have verified that munmap works fine with any address returned
by mmap, even if not aligned, at least on a
On Mon, Jan 26, 2004 at 10:53:54AM -0800, Julian Elischer wrote:
...
On Mon, 26 Jan 2004, Stuart Pook wrote:
On 23 Jan 2004, Don Lewis wrote:
the send does not give an error: the packet is just thrown away.
Which is the same result as you would get if the bottleneck is just one
On Sat, Jan 24, 2004 at 01:38:37PM -0500, Robert Watson wrote:
...
(2) Try the NDIS driver with the NDIS-u-lator on FreeBSD 5.x and see if
that also has the problem.
but going this way you have no idea on what the driver does,
including enabling hw checksums. This looks like a
useless test
On Sat, Jan 24, 2004 at 02:12:12PM -0500, Robert Watson wrote:
...
but going this way you have no idea on what the driver does, including
enabling hw checksums. This looks like a useless test at least for the
purpose of finding out what is going wrong
Actually, I'm more curious about
On Fri, Jan 23, 2004 at 06:09:20PM +0100, Andre Oppermann wrote:
...
send() for UDP should block if the socket is filled and the interface
can't drain the data fast enough.
It doesn't (at least I cannot make it block)
This stuff is rather complex. A send() on a UDP socket processes
On Sun, Jan 04, 2004 at 02:15:18AM +0700, Eugene Grosbein wrote:
Hi!
[EMAIL PROTECTED] wrote 8 years ago in src/lib/libc/gen/syslog.c:
p += sprintf(p, %.15s , ctime(now) + 4);
What is '+ 4' for?
quite likely it is to skip the 'day of week' field -- the ctime
manpage says
The
On Tue, Dec 23, 2003 at 03:17:12PM -0500, Leo Bicknell wrote:
...
I must not be clear on what in out recv and xmit mean, and
after reading the manual page 3 times I'm now even more confused.
The names are reasonably intuitive...
in matches packets on the INput path (basically,
On Wed, Dec 24, 2003 at 08:39:45AM -0500, Leo Bicknell wrote:
...
Now that I've used IPFW2 for something more complicated than simple
host filtering I see that the syntax and structure makes something
like a firewall/nat box for any moderately interesting config way
too complicated with way
On Sun, Nov 30, 2003 at 06:53:10AM -, Antti Louko wrote:
Generally, I like the (Free)BSD way of doing things. But the IP
filtering modules available for FreeBSD lack one feature when compared
to Linux way (ipchains and iptables).
There is no call instruction by design in ipfw2. The reason
[Not sure what is the appropriate forum to discuss this, so
please redirect the discussion if you know where. I have Bcc-ed
a few /bin/sh committers]
I am trying to implement, in the most unintrusive way, something
resembliung associative arrays in /bin/sh. I am not interested in
syntactic
Hi,
both -current and -stable have the following snippet of code in
sys/dev/syscons/syscons.c:scclose():
{
...
int s;
if (SC_VTY(dev) != SC_CONSOLECTL) {
...
s = spltty();
...
}
On Thu, Oct 16, 2003 at 11:17:50AM -0400, Michael Marchetti wrote:
Hi,
We have encountered a problem where the system hangs. We are running a 4.7
SMP kernel using kernel polling on a Dual Xeon with hyperthreading enabled
puzzled on what you mean by kernel polling ... DEVICE_POLLING,
if that
luigi
-Original Message-
From: Luigi Rizzo [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 16, 2003 11:49 AM
To: Michael Marchetti
Cc: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]'
Subject: Re: hardclock interrupt deadlock
On Thu, Oct 16, 2003 at 11:17:50AM -0400, Michael Marchetti
on this is
appreciated.
Thanks,
-ansh
Original Message:
-
From: Mark Santcroos [EMAIL PROTECTED]
Date: Tue, 7 Oct 2003 19:16:14 +0200
To: [EMAIL PROTECTED]
Subject: Re: HZ = 1000 slows down application
On Mon, Sep 22, 2003 at 02:22:02PM -0700, Luigi Rizzo wrote
On Tue, Sep 23, 2003 at 12:28:07PM -0400, Matthew George wrote:
...
you can count the traffic with dynamic rules (but this does not go
to the logfile), not sure what you mean by 'see the transfered data file'
from ipf(5):
LOGGING
When a packet is logged, with either the log
On Mon, Sep 22, 2003 at 08:07:13PM +0200, Uwe Klann wrote:
Hi All,
From the Log file IPFW:-
Sep 22 00:24:13 muc /kernel: ipfw: 3300 Accept TCP 217.10.213.30:4418
217.9.121.209:21 in via fxp0
How can I extend on FreeBSD 4.8 (ipfw2) the log contens to see the tranfered
data File and the
On Mon, Sep 22, 2003 at 02:43:40PM -0400, [EMAIL PROTECTED] wrote:
...
But now I noticed that my application is occassionally doing slower
iterations. Average iteration time used to be 0.2 ms without polling
enabled. With the device polling changes, the average time is still around
the same,
hi,
recently i have been bitten by a problem which might be already
known, but still...
quite a few apps (sendmail and ssh among them) seem to always
try an query if compiled with ipv6 support, and even if
the kernel does not support ipv6, tcpdump shows queries going out
to the
On Sat, Aug 02, 2003 at 09:59:18AM +0100, David Malone wrote:
On Fri, Aug 01, 2003 at 11:52:00PM -0700, Luigi Rizzo wrote:
My understanding is that there are multiple buggy components here:
my ISP's nameserver certainly shouldn't behave so badly on
requests, and the applications should
hi,
i have the following questions:
* strange benchmark results! Given the description, I would expect
the |@ rsh and |@ ssh cases to give the same throughput, and
in any case | rsh to be faster than | ssh. How comes, instead,
that the times differ by an order of magnitude ? Can you
at 02:04:21PM +0300, Diomidis Spinellis wrote:
Luigi Rizzo wrote:
* strange benchmark results! Given the description, I would expect
the |@ rsh and |@ ssh cases to give the same throughput, and
in any case | rsh to be faster than | ssh. How comes, instead,
that the times differ
On Thu, Jul 24, 2003 at 10:36:41AM -0700, John-Mark Gurney wrote:
Diomidis Spinellis wrote this message on Thu, Jul 24, 2003 at 14:04 +0300:
separate command netpipe. Netpipe takes as arguments the originating
host, the socket port, the command to execute, and its arguments.
Netpipe
Hi,
i need a bit of help from creative /bin/sh users...
I am writing a script to generate ipfw test cases, and as
part of the script i need to generate 'actions' which can be either
one or more, e.g.
a1=allow
a2=deny log
a3=pipe 10
Now, this works:
for act in $a1 $a2 $a3; do
(). With a high bandwidth-delay product, that chain
can get very long.
This topic came up on freebsd-net last July, and Luigi Rizzo provided
the following URL for a patch to cache the end of the mbuf chain, so
sbappend() stays O(1) instead of O(n).
the patch was only for UDP though. I think
On Wed, Mar 12, 2003 at 05:44:25PM +1100, Peter Jeremy wrote:
...
Are you sure you were generating wire speed packets - this is about
200,000 packets/sec at Fast speed. ping -f runs at whatever rate
148,800kpps
In order to get 200,000 pps, you're going to need 5-10 hosts
generating traffic,
On Fri, Mar 07, 2003 at 03:49:05PM -0600, Brandon D. Valentine wrote:
...
I have had good luck with the Adaptec Quartet 66 cards, under both Linux
and FreeBSD. YMMV, though. They come as 64-bit/66Mhz cards, which
...
controllers on it. Chances are if you really need a four-port card $300
is
why don't you read the ipfw manpage, install IPFW2, and rewrite
the ruleset using ipfw2 features (specifically the new syntax to
specify address sets) and dynamic rules:
something like
hosts={4,6,44,52,12,99,130,21,244}
ports=22,25,80,443
allow proto tcp src-ip 1.2.3.${hosts}/24
On Mon, Dec 16, 2002 at 11:10:42AM +0200, mika ruohotie wrote:
hello,
ipfw man page says:
buckets hash-table-size
Specifies the size of the hash table used for storing the various
queues. Default value is 64 controlled by the sysctl(8) variable
the diagnosis looks reasonable, though i do not remember changing
anything related to this between 4.6 and 4.7 so i wonder why the
error did not appear in earlier versions of the code.
icmp_error() consumes the mbuf so i believe it is ok to scramble it
but one should double check.
Note that
Hi,
I just got hit by a peculiar problem related to out-of-order
execution of instructions.
I was doing some low-level timing measurements using the rdtsc()
around selected pieces of code (the rdtsc() is included in
the TSTMP() functions that are in RELENG_4, source is in
sys/i386/isa/clock.c), as
thanks a lot for the pointer to CPUID
luigi
On Mon, Nov 25, 2002 at 05:15:06PM -0800, Nate Lawson wrote:
...
The Intel processor manual has an explicit example for this and recommends
you use cpuid as a serializing instruction before the call to rdtsc.
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Very nice report, thanks :)
just wanted to mention that i am totally unrelated to the Torino
crew (at least, as far as i can tell... unless there was some
former student of mine!) and the credit for the cool stuff
they did is entirely to them.
cheers
luigi
On Tue, Nov 19, 2002
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