Bengt Ahlgren wrote: > "[LoN]Kamikaze" <LoN_Kamikaze_at_gmx.de> writes: > >> From my perspective scheduling on RELENG_6 was way better. Even on a full >> workload like a portupgrade the focused application (both in X and on the >> console) always received enough cycles to run smoothly and applications that >> ran in background like audio players also kept on running fine. >> >> Quite the contrary on RELENG_7. During a portupgrade or even worse 'pkgdb -L' >> (recovering lost dependencies) audio players (both graphical and mplayer) >> scatter, either because they don't get the hard-disk or CPU-cycles (which one, >> I don't know) and the focused application also often hangs. It just looks like >> occasionally (under load) everything freezes for a second and then goes on >> relatively normal. > > Do you have ATA write-caching on or off? My experience is that if you > turn caching off (on RELENG_6_x at least, have not tried 7) the > machine often freezes for seconds when you are writing a lot to the > disk. > > Bengt > Write-caching is on on my machines.Received on Wed Oct 17 2007 - 07:01:12 UTC
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