Re: sched domains oddness.

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From: Dave Jones
Date: Friday, October 31, 2008 - 10:17 am

On Fri, Oct 31, 2008 at 10:09:29AM -0700, Suresh Siddha wrote:

 > > looks like someone is triggering rebuild_sched_domains(), is something
 > > poking cpusetfs files or flipping between sched_mc settings?
 > 
 > I remember someone mentioning that some distro's started setting
 > sched_mc_power_savings to '1' by default during boot. On a dual-core
 > laptop, this will not give any advantage.
 > 
 > I have to fix the code to not export this tunable, when we have only
 > socket in the system.
 > 
 > Dave, Is your distro also setting this tunable blindly during boot :(

(13:15:25:davej@vaio:~)$ cat /sys/devices/system/cpu/sched_mc_power_savings
0

So no, unless something set it to 1, and then back to 0.

A grep of etc shows up nothing in initscripts.  Does hal or something
play with this?

	Dave

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Messages in current thread:
sched domains oddness., Dave Jones, (Fri Oct 31, 9:24 am)
Re: sched domains oddness., Peter Zijlstra, (Fri Oct 31, 9:51 am)
Re: sched domains oddness., Suresh Siddha, (Fri Oct 31, 10:09 am)
Re: sched domains oddness., Dave Jones, (Fri Oct 31, 10:17 am)
Re: sched domains oddness., Dave Jones, (Fri Oct 31, 10:19 am)
Re: sched domains oddness., Dave Jones, (Fri Oct 31, 10:37 am)
Re: sched domains oddness., Suresh Siddha, (Fri Oct 31, 10:58 am)
Re: sched domains oddness., Dave Jones, (Fri Oct 31, 12:08 pm)