On Sun, 25 Feb 2007, Martin Blapp wrote: >> It would be really great if we could find "workload owners" who would >> maintain easy-to-run benchmark configurations and also run them regularly >> on a fixed hardware configuration over a long time publishing results and >> testing patches. Kris has done this for SQL benchmarks to great effect, > > I'm interested in such a workload test. At my job we run various other > servers which have a classic virus/antispam environment. And unfortunatly > clamd behaves not very well on FreeBSD (see mails to freebsd-threads), and > this happens even on 2-CPU systems. > > I think its not very difficult to make a scripted load test, with > 2/4/6/8/16/32 scans in parallel, with ULE or BSD scheduler. As long as it is realistic and reproduceable, it sounds good to me. > Btw: what is the best method to profile a threaded application to see where > it spends the most CPU time ? Try looking at system pmc support -- using system pmcs, you can profile a variety of factors (including CPU use, cache misses, etc) across the whole system (kernel and application), so it's a really neat tool. Robert N M Watson Computer Laboratory University of CambridgeReceived on Sun Feb 25 2007 - 12:51:34 UTC
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