On Wed, Sep 22, 2010 at 2:50 PM, Ian Smith <[email protected]> wrote: > It seems far more than just CPU performance is awry. Adam's data from > his i7 shows 2.7 times Bryce's speed for the md5 -t, maybe a lower EST > rate? - but that could no way account for buildworld taking 22.5 hours. > > Recent buildworld (albeit i386) on my Thinkpad T23 ran just shy of 3.5 > hours, without -j on an 1133MHz P3-M, 768MB of 133MHz RAM, 5400rpm UFS > disk - with X/KDE running meanwhile (~5-7% CPU penalty). > > cheers, Ian
md5 -t is quite a small benchmark, even with his misfunctioning CPU it took <6 seconds to complete. If his problem is a misapplied heatsink/fan, then his CPU could be throttling when it gets hot, the hotter it gets the more it throttles, which could explain his massive buildworld walltime. Perhaps running something like: apply -0 "md5 -t" `jot 10` would display a notable difference. Intel chips are quite good at running without much cooling and not dieing, using thermal throttling to preserve the CPU. Cheers Tom _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
