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xen-devel
[Xen-devel] Re: A proposal - binary
To: |
Adrian Bunk <bunk@xxxxxxxxx> |
Subject: |
[Xen-devel] Re: A proposal - binary |
From: |
Andi Kleen <ak@xxxxxxx> |
Date: |
Sat, 5 Aug 2006 13:57:09 +0200 |
Cc: |
Zachary Amsden <zach@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Jack Lo <jlo@xxxxxxxxxx>, Greg KH <greg@xxxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, Linus Torvalds <torvalds@xxxxxxxx>, James.Bottomley@xxxxxxxxxxxx, pazke@xxxxxxxxx |
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> Has anyone measured the performance impact of rutime CLOCK_TICK_RATE
> switching (since this will no longer allow some compile time
> optimizations in jiffies.h)?
SUSE shipped a kernel briefly that had runtime switchable jiffies
and there were some benchmarks done and they didn't show noticeable
slowdown.
But with hr timers it should be pretty much obsolete anyways.
-Andi
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