Ingo Molnar
840a065310
sched: Turn on SD_BALANCE_NEWIDLE
Start the re-tuning of the balancer by turning on newidle.
It improves hackbench performance and parallelism on a 4x4 box.
The "perf stat --repeat 10" measurements give us:
domain0 domain1
.......................................
-SD_BALANCE_NEWIDLE -SD_BALANCE_NEWIDLE:
2041.273208 task-clock-msecs # 9.354 CPUs ( +- 0.363% )
+SD_BALANCE_NEWIDLE -SD_BALANCE_NEWIDLE:
2086.326925 task-clock-msecs # 11.934 CPUs ( +- 0.301% )
+SD_BALANCE_NEWIDLE +SD_BALANCE_NEWIDLE:
2115.289791 task-clock-msecs # 12.158 CPUs ( +- 0.263% )
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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2009-09-04 11:52:54 +02:00 |
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acpi
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ACPI processor: force throttling state when BIOS returns incorrect value
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2009-08-26 20:06:53 -07:00 |
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asm-generic
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mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()
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2009-07-27 12:10:38 -07:00 |
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crypto
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drm
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drm/radeon: add GET_PARAM/INFO support for Z pipes
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2009-08-21 19:10:30 +10:00 |
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keys
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linux
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sched: Turn on SD_BALANCE_NEWIDLE
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2009-09-04 11:52:54 +02:00 |
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math-emu
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media
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V4L/DVB (12283): gspca - sn9c20x: New subdriver for sn9c201 and sn9c202 bridges.
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2009-07-24 14:03:30 -03:00 |
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mtd
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Kill jffs2-user.h
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2009-06-05 17:31:38 +01:00 |
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net
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pkt_sched: Convert qdisc_watchdog to tasklet_hrtimer
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2009-08-22 18:09:17 -07:00 |
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pcmcia
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rdma
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rxrpc
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scsi
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sd, sr: fix Driver 'sd' needs updating message
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2009-06-21 12:01:27 -05:00 |
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sound
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Merge branch 'topic/pcm-jiffies-check' into for-linus
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2009-06-10 07:26:41 +02:00 |
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trace
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sched: Add wait, sleep and iowait accounting tracepoints
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2009-09-02 09:12:18 +02:00 |
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video
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fbdev: s1d13xxxfb: add accelerated bitblt functions
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2009-06-16 19:48:00 -07:00 |
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xen
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Kbuild
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[SCSI] FC Pass Thru support
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2009-06-12 14:20:05 -05:00 |