On Sat, 1 May 2004, Alexandre Sunny Kovalenko wrote: > On Thu, 29 Apr 2004 17:16:21 +0200 > Ivan Voras <ivoras_at_fer.hr> wrote: > > > Alexandre Sunny Kovalenko wrote: > > > > > Alternatively, if there is a need to test a patch or time a program > > > in this environment, it could easily be accomplished -- it is a non- > > > production box. > > > > Could you turn off Hyperthreading and report any changes? > > > > > > _______________________________________________ > > freebsd-current_at_freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" > > I have updated my system to the latest CTM mailing on Friday (4/30) morning (EST). > This includes version 1.176 of kern_thread.c. > > I have turned off hyperthreading and got result, which muddles me rather -- try > as I might, with -lpthread I could not get past 50% CPU utilization (as reported > by 'top') and number of computations per second matching that (number is very > close to that for running single-threaded). Top report with thread view enabled > shows that both KSE are bound to CPU 0 (if I am interpreting C column properly). Are you using system or process scope threads? -- Dan EischenReceived on Sat May 01 2004 - 09:49:48 UTC
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