Re: split-lru performance mesurement part2

Rik van Riel
2008-10-07T21:28:09Z

Andrew Morton wrote:

> dbench is pretty chaotic and it could be that a good change causes
> dbench to get worse. That's happened plenty of times in the past.
>
>
>> Do you have any suggestion?
>
>
> One of these:
>
> vmscan-give-referenced-active-and-unmapped-pages-a-second-trip-around-the-lru.patch
> vm-dont-run-touch_buffer-during-buffercache-lookups.patch
>
> perhaps?

Worth a try, but it could just as well be a CPU scheduler change
that happens to indirectly impact locking :)

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