> On 21 Jul, 2018, at 8:20 pm, Georgios Amanakis wrote:
>
> I got the same result as you. This is using latest cake.
I'd like to see a tcptrace of what's going on here. A packet capture with
snaplen 100 should allow me to generate one.
- Jonathan Morton
On Sat, Jul 21, 2018 at 10:28 AM Georgios Amanakis wrote:
>
> The previous one was with:
> net.ipv4.tcp_congestion_control=cubic
>
> I retried with:
> net.ipv4.tcp_congestion_control=reno
>
> Georgios
In the fast test this has no effect on the remote server's tcp, it's
always going to be reno.
I had a similar issue with my previous cable modem, whatever I shaped to
didn't matter, I still had long delays. I "fixed" it by continuously
sending a stream of empty UDP packets upstream:
hping3 -2 -d 0 -s 10080 -k -p 80 -i u150 IP-OF-FIRST-OUTSIDE-CABLE-HOP-HERE
On 21 July 2018 at 22:36, Dave
Right, ok. Well I’ve no idea what/if anything is broken here on my system, so
I’m going to stop.
> On 21 Jul 2018, at 20:12, Sebastian Moeller wrote:
>
> Ah, I also installed python 3.6 via macports and PyQT5, the OS supplied
> python is a bit dated and I am too chicken to install new
> B) that NIC support seems
> needed. I can think of a lot of things I'd like to have in a NIC
> (which certainly include default timestamping on rx and multiple kinds
> of X-tuple hash) - but hadn't thought about replacing queues entirely!
Still fond of the notion of RX|TX sk buffers wandering
for reference can you do a download and capture against flent-newark,
while using the ping test?
On Sat, Jul 21, 2018 at 10:44 AM Georgios Amanakis wrote:
>
> On Sat, 2018-07-21 at 20:23 +0300, Jonathan Morton wrote:
> >
> > I'd like to see a tcptrace of what's going on here. A packet capture
>
hmm? you only have 15mbits down?
On Sat, Jul 21, 2018 at 11:18 AM Georgios Amanakis wrote:
>
> On Sat, 2018-07-21 at 10:47 -0700, Dave Taht wrote:
> > for reference can you do a download and capture against flent-newark,
> > while using the ping test?
> >
>
> New data, this is what I did:
>
> 1)
Hi Chaps
Would love to help Dave with his flent run request. Is there anyone who can
hand hold me through mac os installation? Having a battle and on the losing
side :-/
Cheers,
Kevin D-B
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To summarize:
A) I think the magic 85% figure only applies at lower bandwidths.
B) We are at least partially in a pathological situation where
CMTS = 380ms of buffering, token bucket fifo at 100mbit
Cakebox: AQMing and trying to shape below 85mbit, gradually ramping up
the signalling once per
hmmm... And wow, does this modem have difficulty with udp
Summary of ping test run 'hping3-cake-docsis' (at 2018-07-21 22:22:14.758201):
avg median # data pts
Ping (ms) ICMP :26.5023.20 ms2395
Ping (ms) UDP : 1.02
In other news:
https://github.com/tohojo/sqm-scripts/issues/68
does the ER4 have act_police?
On Sat, Jul 21, 2018 at 10:55 AM Arie wrote:
>
> It's Ziggo NL/Liberty Global. I'm surprised by the reported latency in the
> fast.com test. Both the site and the flent ping test report about the same
I just upgraded/reinstalled flent on OS/X, all it took was sudo pip install
flent
But that might have been easy because I've done it before.
On 21 July 2018 at 20:40, Kevin Darbyshire-Bryant <
ke...@darbyshire-bryant.me.uk> wrote:
> Hi Chaps
>
> Would love to help Dave with his flent run
Dave Taht writes:
> On Sat, Jul 21, 2018 at 10:28 AM Georgios Amanakis
> wrote:
>>
>> The previous one was with:
>> net.ipv4.tcp_congestion_control=cubic
>>
>> I retried with:
>> net.ipv4.tcp_congestion_control=reno
>>
>> Georgios
>
> In the fast test this has no effect on the remote server's
> On 21 Jul, 2018, at 11:01 pm, Dave Taht wrote:
>
> The cmts buffer fills more rapidly, particularly in slow start, while
> presenting packets to the inbound shaper at 100mbit. cake starts
> signalling, late, trying to achieve but at that point the apparent
> RTTs are still growing rapidly
It does.
On 21 July 2018 at 20:02, Dave Taht wrote:
> In other news:
>
> https://github.com/tohojo/sqm-scripts/issues/68
>
> does the ER4 have act_police?
>
> On Sat, Jul 21, 2018 at 10:55 AM Arie wrote:
> >
> > It's Ziggo NL/Liberty Global. I'm surprised by the reported latency in
> the
Yes. Unshaped it is ~20mbit, the tests were ran with cake shaping at 80%.
On Sat, Jul 21, 2018, 2:20 PM Dave Taht wrote:
> hmm? you only have 15mbits down?
> On Sat, Jul 21, 2018 at 11:18 AM Georgios Amanakis
> wrote:
> >
> > On Sat, 2018-07-21 at 10:47 -0700, Dave Taht wrote:
> > > for
On Sat, Jul 21, 2018 at 11:37 AM Dave Taht wrote:
>
> On Sat, Jul 21, 2018 at 11:23 AM Arie wrote:
> >
> > It does.
>
> well, one approach seems to be to police as per that bug report at say
> 90-95% of the actual inbound rate, while shaping at 85%... or some
> combination thereof.
>
> figuring
> On 20 Jul, 2018, at 5:47 pm, Luca Muscariello
> wrote:
>
> and C) you can implement any packet scheduler using a timing wheel using
> virtual times.
To do this perfectly, you have to assume that no packets will arrive within
your scheduling horizon which should be scheduled within that
Ah, I also installed python 3.6 via macports and PyQT5, the OS supplied python
is a bit dated and I am too chicken to install new packages into apple's python
version.
I am pretty sure that is also doable with homebrew or any other porting system
on the mac.
Best Regards
> On Jul 21,
Thank you. At least for your ISP (?), at 250mbit, you can hold the
damage down to something reasonable, and certainly you are winning big
on the upload.
Good to know the ER4 can keep up, also.
On Sat, Jul 21, 2018 at 10:36 AM Arie wrote:
>
> Unshaped reno attached.
>
> On 21 July 2018 at 19:27,
I was off in the cheap seats watching,
https://www.youtube.com/watch?v=LdjavTiMrs0=youtu.be=1h10m3s
saying "yes, for ghu's sake, back off half on ecn - or more! And if
you are going to try defeating policers, despite the desperate reasons
for them to exist... it's time to come up with a policer
wow. That is the best dslreports test result for cable I have ever had.
with hping3 -2 -d 0 -s 10080 -k -p 80 -i u150 96.120.89.153
http://www.dslreports.com/speedtest/36209937
Without:
http://www.dslreports.com/speedtest/36210095
You say a different cablemodem does better without hping3
Yours is not as horrific as mine in either case.
Can you provide an unshaped result as well?
On Sat, Jul 21, 2018 at 10:24 AM Arie wrote:
>
> Two more data points. Shaped my connection to 250Mbit out of the advertised
> 250Mbit (my usual setting) and shaped to 200Mbit out of the 250Mbit. This
sudo pip install flent
The directory '/Users/kevin/Library/Caches/pip/http' or its parent directory is
not owned by the current user and the cache has been disabled. Please check the
permissions and owner of that directory. If executing pip with sudo, you may
want sudo's -H flag.
The directory
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