Hi again, > > http://www.earthworm.de/tmp/reiser4-fsync.c > > > > with 2.6.13: > > sync() = 0 <0.000198> > > fsync(3) = 0 <0.003353> > > > > with 2.6.14 (with and without patch): > > sync() = 0 <2.092873> > > fsync(3) = 0 <0.132579> > > I tried your test on a box with reiser4 root fs: > 2.6.13: > strace -T -e sync,fsync ./eworm xx > fsync(3) = 0 <0.158808> > > 2.6.14-mm2 + > ftp://ftp.namesys.com/pub/reiser4-for-2.6/2.6.14-mm2/reiser4-for-2.6.14-mm2-1.patch.gz > > strace -T -e sync,fsync ./eworm xx > fsync(3) = 0 <0.005373>
here are my results for 2.6.14-mm2 (gentoo, w/o that patch for -mm2): $ strace -T -e sync,fsync ./a.out sync() = 0 <0.767049> fsync(3) = 0 <0.207243> I'm going to install the latest gentoo-sources and will try it again with some patches. Oh, but please have a closer look onto the mail from John Gilmore, he wrote today. I'm experiencing the same: the slowdown does not affect vim and evolution only, but the whole system. And yes, also the reads are a lot slower. Bootup time has increased by factor 3 or 4. And because of all the disk activity I'd also guess, that some kind of fragmentation is causing these problems, but I haven't checked tree fragmentation, yet. ...probably later. Thorsten
