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Cliff White writes: > > Andrew Morton wrote: > > > > >Andrew Morton wrote: > > > > > > > > >>Hans Reiser wrote: > > >> > > >> > > >>>Andrew and Chris, are these changes in performance definitely due to VM > > >>>changes (and not some difference I am not thinking of between 2.5 and > > >>>2.4 reiserfs code)? > > >>> > > >>> > > >>> > > >>aim9 is just doing > > >> > > >> for (lots) > > >> close(creat(filename)) > > >> > > >> > > > unlink(filename); /* of course */ > > > > > > > > > > > > > > Oh, commercial fs vendors must really love tuning for this benchmark.... > > sigh.... > > > Ya, we think the AIM stuff is getting a little old. The basic idea is fine, but > many of the tests do _very little work. We (OSDL) would like to re-do > AIM9+7 and make it more useful. We'd love to have some input from everyone.... > For example, how big a file should we create for a real creat() test ? Probably it should be variable. You may take a look at the way "mongo" script (http://www.namesys.com/benchmarks/mongo.tar.gz) used to benchmark reiserfs calculates size of file (reiser_fract_tree.c:determine_size() function). Hmm, I remember putting long comment for this function, but now it is gone... > cliffw > > > Hans > > Nikita. - 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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