Public bug reported:
Every time I switch from AC to battery I experience increased net delay.
Here's the sample ping:
$ ping lena
PING lena (192.168.2.1) 56(84) bytes of data.
64 bytes from lena (192.168.2.1): icmp_req=1 ttl=128 time=2.47 ms
64 bytes from lena (192.168.2.1): icmp_req=2 ttl=128 time=1.87 ms
64 bytes from lena (192.168.2.1): icmp_req=3 ttl=128 time=2.73 ms
64 bytes from lena (192.168.2.1): icmp_req=4 ttl=128 time=2.00 ms
64 bytes from lena (192.168.2.1): icmp_req=5 ttl=128 time=1.96 ms
64 bytes from lena (192.168.2.1): icmp_req=6 ttl=128 time=1.81 ms
64 bytes from lena (192.168.2.1): icmp_req=7 ttl=128 time=1.97 ms
64 bytes from lena (192.168.2.1): icmp_req=8 ttl=128 time=294 ms
64 bytes from lena (192.168.2.1): icmp_req=9 ttl=128 time=214 ms
64 bytes from lena (192.168.2.1): icmp_req=10 ttl=128 time=134 ms
64 bytes from lena (192.168.2.1): icmp_req=11 ttl=128 time=54.5 ms
64 bytes from lena (192.168.2.1): icmp_req=12 ttl=128 time=281 ms
64 bytes from lena (192.168.2.1): icmp_req=13 ttl=128 time=202 ms
64 bytes from lena (192.168.2.1): icmp_req=14 ttl=128 time=122 ms
64 bytes from lena (192.168.2.1): icmp_req=15 ttl=128 time=42.5 ms
64 bytes from lena (192.168.2.1): icmp_req=16 ttl=128 time=269 ms
64 bytes from lena (192.168.2.1): icmp_req=17 ttl=128 time=189 ms
64 bytes from lena (192.168.2.1): icmp_req=18 ttl=128 time=110 ms
64 bytes from lena (192.168.2.1): icmp_req=19 ttl=128 time=2.28 ms
64 bytes from lena (192.168.2.1): icmp_req=20 ttl=128 time=1.82 ms
64 bytes from lena (192.168.2.1): icmp_req=21 ttl=128 time=1.96 ms
^C
--- lena ping statistics ---
21 packets transmitted, 21 received, 0% packet loss, time 20030ms
rtt min/avg/max/mdev = 1.813/92.320/294.468/105.367 ms
Right after I unplug the AC, the delay gets to 200 from 2 ms, plugging
the AC back restores the net properly.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: pm-utils 1.4.1-3ubuntu1 [modified:
usr/lib/pm-utils/power.d/journal-commit]
ProcVersionSignature: Ubuntu 2.6.35-30.54-generic 2.6.35.13
Uname: Linux 2.6.35-30-generic x86_64
NonfreeKernelModules: nvidia wl
Architecture: amd64
Date: Sat Jul 16 18:33:37 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, user)
LANG=en_GB.utf8
SHELL=/bin/bash
SourcePackage: pm-utils
** Affects: pm-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
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https://bugs.launchpad.net/bugs/811552
Title:
network delay increases when switching to battery
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