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SubjectRe: oltp ~10% regression with 2.6.27-rc5 on stoakley machine
Date
Hi Peter,

Peter Zijlstra wrote:
>
>
> Also, we used to have some auto-tuning in there, which dissapeared some
> time ago, gregory brought it back to live recently, perhaps he likes to
> share? :-)
>

Per your request, I brought those "revert" patches I had in the PQ branch
forward to 2.6.27-rc5. They are completely unbuilt and untested, but here
for your experimentation.

-Greg

---

Gregory Haskins (4):
sched: make task_hot() once again use sd->cache_hot_time
Revert "sched: zap the migration init / cache-hot balancing code"
Revert "[PATCH] sched: remove cache_hot_time"
revert "sched: sched_cacheflush is now unused"


Documentation/kernel-parameters.txt | 43 +++
arch/ia64/kernel/setup.c | 15 +
arch/mips/kernel/smp.c | 11 +
arch/sparc/kernel/smp.c | 10 +
arch/sparc64/kernel/smp.c | 27 ++
arch/x86/kernel/smpboot.c | 12 +
include/asm-m32r/system.h | 10 +
include/asm-mips/system.h | 10 +
include/asm-parisc/system.h | 11 +
include/asm-x86/system.h | 9 +
include/linux/sched.h | 7
include/linux/topology.h | 1
kernel/sched.c | 499 ++++++++++++++++++++++++++++++++++-
13 files changed, 656 insertions(+), 9 deletions(-)

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