lkml.org 
[lkml]   [2006]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[PATCH 0/5][time][x86_64] GENERIC_TIME patchset for x86_64
Andrew, Andi,

I didn't hear any objections (or really, any comments) on my
last release, so as I mentioned then, I want to go ahead and push this
to Andrew for a bit of testing in -mm. Hopefully targeting for
inclusion in 2.6.21 or 2.6.22.

Here's the performance data from the last release:

Vanilla TSC:
149 nsecs per gtod call
367 nsecs per CLOCK_MONOTONIC call
288 nsecs per CLOCK_REALTIME call
Vanilla ACPI PM:
1272 nsecs per gtod call
1335 nsecs per CLOCK_MONOTONIC call
1273 nsecs per CLOCK_REALTIME call

GENERIC_TIME TSC:
149 nsecs per gtod call
304 nsecs per CLOCK_MONOTONIC call
275 nsecs per CLOCK_REALTIME call
GENERIC_TIME ACPI PM:
1273 nsecs per gtod call
1275 nsecs per CLOCK_MONOTONIC call
1273 nsecs per CLOCK_REALTIME call

So almost no performance change.

New in the current C8 release:
o Synced up w/ 2.6.20-rc1
o Added a few small cleanups from Ingo

Let me know if you have any thoughts or comments!

thanks again!
-john
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-12-20 02:23    [W:0.048 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site