Andrew Morton wrote:
"Chen, Kenneth W" <[EMAIL PROTECTED]> wrote:
This could be part of the unknown 2% performance regression with db transaction processing benchmark.
The four functions in the following patch use to be inline. They are un-inlined since 2.6.7.
We measured that by re-inline them back on 2.6.9, it improves performance for db transaction processing benchmark, +0.2% (on real hardware :-)
Can you also inline requeue_task? No performance gain expected, but it is just a simple wrapper around a list function.
The cost is certainly larger kernel size, cost 928 bytes on x86, and 2728 bytes on ia64. But certainly worth the money for enterprise customer since they improve performance on enterprise workload.
Less that 1k on x86 versus >2k on ia64. No wonder those things have such big caches ;)
... Possible we can introduce them back?
OK by me.
What happens if you leave task_timeslice out of line? It isn't exactly huge, but it is called from a handful of places.
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