Hello Hesse, Christian wrote: > Vladimir V. Saveliev wrote: >>Please try whether the attached patch improves anything. It simplifies >>fsync by avoid commiting of transactions which do not modify file being >>fsync-ed. >> >>The patch applied to 2.6.14-mm2 with warnings, but that can be ignored. > > Hi everybody, > > I'm suffering the same problem, sync and fsync are horribly slow. I've > written > a small test program: > > 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> Would you please try whether 2.6.14-mm2 with fresh reiser4 update fsyncs better?
