Re: [tip:sched/urgent] sched: Fix cross-cpu clock sync on remote wakeups
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- Subject: Re: [tip:sched/urgent] sched: Fix cross-cpu clock sync on remote wakeups
- From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- Date: Fri, 03 Jun 2011 12:55:06 +0200
- Cc: Yong Zhang <yong.zhang0@xxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "hpa@xxxxxxxxx" <hpa@xxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "markus@xxxxxxxxxxxxxxx" <markus@xxxxxxxxxxxxxxx>, "tglx@xxxxxxxxxxxxx" <tglx@xxxxxxxxxxxxx>, "mingo@xxxxxxx" <mingo@xxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
- In-reply-to: <1307097360.2353.3071.camel@twins>
On Fri, 2011-06-03 at 12:36 +0200, Peter Zijlstra wrote:
> > Can we get some numbers for how often the two cases occur on some
> > various workloads?
>
> Sure, let me stick some counters in.
Of 128765 IPIs, 17483 were with an empty list (boot + make -j64).
I didn't yet look at where those empty ones originated from.
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