[Pm-utils] cores offline after pm-suspend?
victor.lowther at gmail.com
Sun May 30 08:23:39 PDT 2010
On Sun, 2010-05-30 at 17:04 +0200, Marc Weber wrote:
> Some weeks ago I got a new laptop running core -i5 processsor.
> Everything seems to be working. However after resuming from suspend to
> ram htop only shows one core having 100% utilization and I can't seem to
> fix this putting cores off and online again using the sys cpuX/online
Weird. pm-utils does not do anything special with the cpus across
suspend/resume -- the kernel handles all that.
I have gone ahead and cc'ed the linux-pm mailing list.
> I've tried putting them offline before suspending as well.
> My test case:
> a4: a1.x a2.x a3.x a4.x
> all: a1.x a2.x a3.x a4.x a5.x a6.x a7.x a8.x a9.x a10.x a11.x b1.x b2.x b3.x b4.x
> hog is a just a c prog running a dummy loop which lasts about 4 secs.
> I made a screenshot of htop:
> Make started 4 processes, however only one is running on a core.
> make -j4 doesn't finish faster than make -j1 either.
> Do you have any idea how to start debugging this issue?
> Of course everything is fine after rebooting.
> My kernel:
> Linux nixos 22.214.171.124 #1 SMP Sat May 29 22:06:43 UTC 2010 x86_64 GNU/Linux
> using pm-utils-1.3.0
> Any ideas or hints are appreciated.
> Marc Weber
> Pm-utils mailing list
> Pm-utils at lists.freedesktop.org
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