Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped

From	Vagrant Cascadian <vagrant@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped
Date	2016-05-03 18:20 +0200
Message-ID	<ruLdg-2QH-5@gated-at.bofh.it> (permalink)
References	(3 earlier) <rny1s-5Eb-11@gated-at.bofh.it> <rsVTs-5A5-13@gated-at.bofh.it> <ruaQp-2AB-1@gated-at.bofh.it> <rurey-nY-25@gated-at.bofh.it> <ruzON-PC-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

On 2016-05-02, Vagrant Cascadian wrote:
> On 2016-05-02, Ben Hutchings wrote:
>> On Sun, 2016-05-01 at 18:20 -0700, Vagrant Cascadian wrote:
>>> On 2016-04-28, Ben Hutchings wrote:
>>> > Could you test with turbo_mode re-enabled and with this patch applied?
>>> > 
>>> > Also could you test network receive throughput (e.g. with netperf -t
>>> > TCP_STREAM, sending *to* the RPi) in these three different
>>> > configurations:
>>> Ok, if I understood you correctly...
>>> 
>>> Installed netperf on another machine, and ran:
>>> 
>>>   netperf -t TCP_STREAM 10.0.0.50
>>
>> That is not correct syntax; you need to put a -H before the IP address.
>
> Ok. Never used netperf before... will try again!

Ok, this time with:

  netperf -l 60 -t TCP_STREAM -H 10.0.0.50

4.5.2-1, with turbo disabled:

  MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 10.0.0.50 ()
  port 0 AF_INET : demo
  Recv   Send    Send
  Socket Socket  Message  Elapsed
  Size   Size    Size     Time     Throughput
  bytes  bytes   bytes    secs.    10^6bits/sec

   87380  16384  16384    60.04      93.95

4.5.2-1, with turbo enabled:

  MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 10.0.0.50 ()
  port 0 AF_INET : demo
  Recv   Send    Send
  Socket Socket  Message  Elapsed
  Size   Size    Size     Time     Throughput
  bytes  bytes   bytes    secs.    10^6bits/sec

   87380  16384  16384    60.03      94.15

4.5.2, patched with turbo enabled:

  MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 10.0.0.50 ()
  port 0 AF_INET : demo
  Recv   Send    Send
  Socket Socket  Message  Elapsed
  Size   Size    Size     Time     Throughput
  bytes  bytes   bytes    secs.    10^6bits/sec

   87380  16384  16384    60.04      94.15

live well,
  vagrant

Thread

Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-04-10 20:20 +0200
  Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-04-10 21:20 +0200
    Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-04-10 22:30 +0200
    Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Diederik de Haas <didi.debian@cknow.org> - 2016-04-10 23:00 +0200
      Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-04-11 02:20 +0200
        Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-04-11 03:10 +0200
          Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-04-11 17:20 +0200
          Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-04-13 20:50 +0200
            Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-04-28 17:20 +0200
              Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Diederik de Haas <didi.debian@cknow.org> - 2016-04-28 17:40 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-04-28 18:20 +0200
              Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-05-02 03:30 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-05-02 21:00 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-05-03 06:10 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Vagrant Cascadian <vagrant@debian.org> - 2016-05-03 18:20 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-05-07 13:50 +0200
                Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Diederik de Haas <didi.debian@cknow.org> - 2016-05-07 14:10 +0200
  Processed: Re: Bug#820622: linux-image-4.5.0-trunk-armmp-lpae:  raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped owner@bugs.debian.org (Debian Bug Tracking System) - 2016-04-10 21:20 +0200
  Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Bjørn Mork <bjorn@mork.no> - 2016-04-11 10:20 +0200
    Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Ben Hutchings <ben@decadent.org.uk> - 2016-04-11 13:30 +0200
      Bug#820622: linux-image-4.5.0-trunk-armmp-lpae: raspberry pi 2: smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped Bjørn Mork <bjorn@mork.no> - 2016-04-11 15:10 +0200
  Processed: Re: Bug#820622: linux-image-4.5.0-trunk-armmp-lpae:  raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped owner@bugs.debian.org (Debian Bug Tracking System) - 2016-04-28 17:20 +0200
  Processed: Re: Bug#820622: linux-image-4.5.0-trunk-armmp-lpae:  raspberry pi 2:  smsc95xx 1-1.1:1.0 eth0: kevent 2 may have been dropped owner@bugs.debian.org (Debian Bug Tracking System) - 2016-05-02 03:30 +0200

csiph-web