Re: [PATCH 2/3] Reclaim invalidated page ASAP

From: Ben Gamari
Date: Tue Nov 30 2010 - 09:11:14 EST


On Tue, 30 Nov 2010 09:18:22 +0000, Mel Gorman <mel@xxxxxxxxx> wrote:
> I would agree except as said elsewhere, it's a chicken and egg problem.
> We don't have a real world test because fadvise is not useful in its
> current iteration. I'm hoping that there will be a test comparing
>
> rsync on vanilla kernel
> rsync on patched kernel
> rsync+patch on vanilla kernel
> rsync+patch on patched kernel
>
> Are the results of such a test likely to happen?
>
Yes, absolutely, although I'm sorry it has taken so long. Between
thanksgiving and the impending end of the semester things have been a
bit hectic. Nevertheless, I just finished putting together a script to
record some metics from /proc/vmstat and /proc/[pid]/statm, so at this
point I'm ready to finally take some data. Any suggestions for
particular patterns to look for in the numbers or other metrics to
record are welcome. Cheers,

- Ben
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