Messages in this thread |  | | Date | Mon, 12 May 2003 10:29:02 +0200 | From | Jens Axboe <> | Subject | Re: [BENCHMARK] 2.5.69-mm3 with contest |
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On Mon, May 12 2003, Nick Piggin wrote: > > > Con Kolivas wrote: > > snip > > >io_load: > >Kernel [runs] Time CPU% Loads LCPU% Ratio > >2.5.68 3 492 15.9 167.1 19.7 6.23 > >2.5.68-mm1 4 128 59.4 47.6 19.4 1.62 > >2.5.68-mm2 4 131 58.8 47.0 18.9 1.64 > >2.5.68-mm3 4 271 28.4 89.2 17.9 3.39 > >2.5.69 4 343 22.7 120.5 19.8 4.29 > >2.5.69-mm3 4 319 24.5 105.3 18.1 4.04 > > > snip > > > > >dbench_load: > >Kernel [runs] Time CPU% Loads LCPU% Ratio > >2.5.68 3 412 18.4 5.3 47.6 5.22 > >2.5.68-mm1 4 361 21.1 5.5 54.0 4.57 > >2.5.68-mm2 4 345 22.0 4.8 49.3 4.31 > >2.5.68-mm3 4 721 10.5 6.8 33.6 9.01 > >2.5.69 4 374 20.3 5.0 48.1 4.67 > >2.5.69-mm3 4 653 11.6 6.2 34.0 8.27 > > > >Very similar to 2.5.68-mm3 > > > Thanks again Con. These two benchmarks especially are fairly suboptimal > compared with the 68-mm2 days... I hope it is just the larger request queue > size in place in the rq-dyn patch in mm. If you get some time, could you > possibly change include/linux/blkdev.h:BLKDEV_MAX_RQ from 1024 to 128 and > bench these two loads on that setting.
Or just wait for 2.5.70, it has rq-dyn with BLKDEV_MAX_RQ of 128.
-- Jens Axboe
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