Messages in this thread | | | Date | Fri, 3 May 2002 09:37:17 -0700 | From | John Hawkes <> | Subject | Re: O(1) scheduler gives big boost to tbench 192 |
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From: <rwhron@earthlink.net> ... > tbench 192 is an anomaly test too. AIM looks like a nice > "mixed" bench. Do you have any scripts for it? I'd like > to use AIM too.
Try http://www.caldera.com/developers/community/contrib/aim.html for a tarball with everything you'll need.
The "Multiuser Shared System Mix" (aka "workfile.shared") is the one I use. You'll need several disk spindles to keep it compute-bound, though. Several of the disk subtests, especially the sync_* tests, quickly drive one or two spindles to their max transaction rates, and from that point AIM7 will be I/O-bound and produce a largely idle system, which isn't very interesting if you're trying to example CPU scheduler performance with high process counts.
One thing you can do is to comment-out the three sync_* tests in the workfile.shared configuration file, and then watch your idle time with something like vmstat. Experiment with commenting-out more disk subtests, like creat-clo, disk_cp, and disk_src, one by one, until AIM7 becomes compute-bound.
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