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SubjectRe: Mainline kernel OLTP performance update
Matthew Wilcox wrote:
> On Thu, Jan 15, 2009 at 11:46:09AM +0200, Pekka Enberg wrote:
>> It would also be nice if someone could do the performance analysis on
>> the SLUB bug. I ran sysbench in oltp mode here and the results look
>> like this:
>>
>> [ number of transactions per second from 10 runs. ]
>>
>> min max avg sd
>> 2.6.29-rc1-slab 833.77 852.32 845.10 4.72
>> 2.6.29-rc1-slub 823.61 851.94 836.74 8.57
>>
>> And no, the numbers are not flipped, SLUB beats SLAB here. :(
>
> Um. More transactions per second is good. Your numbers show SLAB
> beating SLUB (even on your dual-CPU system). And SLAB shows a lower
> standard deviation, which is also good.

*blush*

Will do oprofile tomorrow. Thanks Matthew.


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