Just looked and I see that NetworkManager runs at niceness level 0. I
wonder if NM should be a little less nice.
Does it help if you add
nice -5
to /etc/init/network-manager.conf (say, on the line after "respawn") and
then do
sudo restart network-manager
?
** Changed in: network-manager (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/879173
Title:
Wi-Fi connectivity interrupted by CPU high load; once load is reduced
NM reconnects -- ath5k
Status in “network-manager” package in Ubuntu:
Incomplete
Bug description:
I've noticed that, when I run some application which is CPU-intensive
such as compiling and doing some number crunching, the wifi connection
just dies out and stays dead as long as the CPU load is high. Once
the CPU load dies down, the network manager suddenly is able to re-
establish the connection. This happens both when a single CPU core is
taxed or when I run multiple demanding processes.
I'm running Ubuntu 11.10, but this problem was already present in
previous Ubuntu releases.
The expected behaviour would be that the wifi connection didn't died
when the CPU got taxed.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: network-manager 0.9.1.90-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
Date: Fri Oct 21 01:16:54 2011
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IpRoute:
default via 192.168.1.1 dev wlan0 proto static
169.254.0.0/16 dev wlan0 scope link metric 1000
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.5 metric 2
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
LANGUAGE=
LANG=en_US.UTF-8
SHELL=/bin/bash
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: Upgraded to oneiric on 2011-10-15 (5 days ago)
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