Messages in this thread |  | | Date | Sun, 1 Aug 2004 17:56:18 -0700 | | From | Andrew Morton <> | | Subject | Re: [PATCH] token based thrashing control |
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Rik van Riel <riel@redhat.com> wrote: > > On Fri, 30 Jul 2004, Rik van Riel wrote: > > > I have run a very unscientific benchmark on my system to test > > the effectiveness of the patch, timing how a 230MB two-process > > qsbench run takes, with and without the token thrashing > > protection present. > > > > normal 2.6.8-rc2: 6m45s > > 2.6.8-rc2 + token: 4m24s > > OK, I've now also ran day-long kernel compilate tests, > 3 times each with make -j 10, 20, 30, 40, 50 and 60 on > my dual pIII w/ 384 MB and a 180 MB named in the background. > > For make -j 10 through make -j 50 the differences are in > the noise, basically giving the same result for each kernel. > > However, for make -j 60 there's a dramatic difference between > a kernel with the token based swapout and a kernel without. > > normal 2.6.8-rc2: 1h20m runtime / ~26% CPU use average > 2.6.8-rc2 + token: 42m runtime / ~52% CPU use average
OK. My test is usually around 50-60% CPU occupancy so we're not gaining in the moderate swapping range. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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