Date: Sun, 24 Jul 2011 21:13:31 +0200 From: Pieter de Goeje <pieter@degoeje.nl> To: freebsd-performance@freebsd.org Cc: Eduardo Morras <nec556@retena.com> Subject: Re: Heavy I/O blocks FreeBSD box for several seconds Message-ID: <201107242113.31479.pieter@degoeje.nl> In-Reply-To: <4D7F86D50198D837@> References: <4E1421D9.7080808@zedat.fu-berlin.de> <5C3302CF-8EE7-489E-8D31-624DA1637B73@mac.com> <4D7F86D50198D837@> (added by postmaster@resmaa14.ono.com)
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On Sunday 24 July 2011 20:50:14 Eduardo Morras wrote: > At 01:15 08/07/2011, you wrote: > >On Jul 7, 2011, at 3:51 PM, Hartmann, O. wrote: > > > This is quibbling. On heavy loads on networ, disk et cetera, > > > > isn't there always and also a CPU bound load? > > > >No. Properly written software blocks when waiting on network or > >disk I/O, and doesn't sit there spinning in a busy-wait consuming > >CPU until it actually gets more work to do. > > > >See select(2), kqueue(2), and friends. > > > >Regards, > > Excuse me, but where (which maillist) and when did this mail thread > started? I have searched this maillist archive and freebsd-hackers > but no success. > > TIA See http://lists.freebsd.org/pipermail/freebsd-current/2011-July/025740.html Regards, Pieter
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