[linux-mm-cc] Fwd: [RFC][PATCH 0/6] compcache: Compressed Caching

Nitin Gupta nitingupta910 at gmail.com
Thu Apr 10 13:08:16 EDT 2008


On Thu, Apr 10, 2008 at 12:28 PM, John McCabe-Dansted <gmatht at gmail.com> wrote:
> On Thu, Apr 10, 2008 at 12:04 AM, Nitin Gupta <nitingupta910 at gmail.com> wrote:
>  >  So, I will require performance numbers to justify inclusion of compcache
>  >  in mainline. We already have separate perf numbers for lzo(compressor) and
>  >  tlsf(allocator) but none that shows that using compcache is good for
>  >  perf under memory pressure.
>
>  Well, the my testing showing that compcache is more robust with that
>  with no swap at all under low memory situations. This would have been
>  enough for Ubuntu if not for the feature freeze. In any case,
>  benchmarks would be good.
>
>
>  >  If anyone is willing to take up this task, you can refer this paper:
>  >  http://ols.108.redhat.com/2007/Reprints/briglia-Reprint.pdf
>  >
>  >  This paper shows benchmarks of previous implementation of memory compression.
>  >  It will give good idea on what to measure.
>
>  Are the scripts used to do that benchmark available? (I know
>  XAutomation is already available in Debian)
>


I am not much aware of testing tools they used. Maybe you can contact
other authors of this paper for details.

- Nitin


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