Andrew Morton wrote: > > Joern Nettingsmeier wrote: > > > > some new interesting results with 2.5.42: > > > > http://spunk.dnsalias.org/latencytest/2.5.42/2x256.html > > > > overall much worse, *but* greatly reduced latency peaks (max. 6 ms) as > > compared to 2.5.41: > > > > http://spunk.dnsalias.org/latencytest/2.5.41/2x256.html > > > > here the peaks easily reach 13 ms. > > Rather depends on the filesystem. ext3 does its own write scheduling, > and does stuff inside lock_kernel(). It needs a couple of scheduling > points I guess. > > I'd expect ext2 to work OK with preemption, but nobody has really > looked yet. Unless you're using ftruncate() (grr.)
oh, i should have stated i'm using reiserfs on /, /usr and /var (var being a softraid-0). -- J�rn Nettingsmeier Kurf�rstenstr 49, 45138 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxdj.com/audio/lad/ (Linux Audio Developers)
