linux-kernel - Re: tuning CFS: /proc/sys/kernel/sched_granularity

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Message-ID: <46B59AE2.4000404@gmail.com>
Date:	Sun, 05 Aug 2007 05:39:46 -0400
From:	Dan Zwell <dzwell@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: tuning CFS: /proc/sys/kernel/sched_granularity_ns question

Dan Zwell wrote:
> Hi. I see "/proc/sys/kernel/sched_granularity_ns" mentioned on web sites 
> and such, but I do have this file and cannot create it. Yes, I am root 
> and /proc is mounted. Are there boot parameters that I must enable to 
> tune this variable? Do I need to specifically enable this in .config?
> 

Sorry for the dumb question--I searched the source and found that 
CONFIG_SCHED_DEBUG must be defined, and after enabling kernel debugging, 
this was automatically turned on. I didn't realize that this type of 
tuning was considered debugging.

Thanks,
Dan
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