Messages in this thread | | | Date | Tue, 19 Dec 2006 20:20:39 -0500 | From | john stultz <> | 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/
| |