On Wednesday 08 November 2006 08:21, Clemens Eisserer wrote: > Hello again, > > Thanks a lot for all the help, well ... I now use reiser4 as root-partition > :-) > > Everything works ok and I haven't seen any crashes or compatibility > problems, simply wonderful :-). If something bad happens I'll let you > know ;) > > However performance is so-and-so, the system was faster with ext3, > although I compiled the kernel with "-O3 -march=pentium4 > -mtune=pentium4 -mno-sse -mno-sse3". Booting the system into KDE takes > about twice the time, although I have to admit I was using another > harddrive - I now use a 60GB/4200RPM instead an 40GB/4200RPM which > both show quite the same hdparm-results, > I use the lzo1 plugin (default ccreg40). > > Are there some settings (or ext3 optimizations) in FC6, or could it be > that some of my kernel-settings slow things down for FC6 (the same > compiled kernel-binary was already used for ext3). The > reiser4-partition is mounted with "noatime". > > These are some features I could imagine causing problems: > * Inotify > * Adaptive file readahead + hit feedback + fine grained readahead aging > * Timer with 1kHz > * Readahead-script of the distribution
I think the slow performance you're experiencing are caused by the fsync() call not being well-optimized in reiser4. I've commented out the function in fs/buffer.c, and I'm having much better performance on my / partition. HTH, Francesco -- Dr. Francesco Biscani Dipartimento di Astronomia Università di Padova [EMAIL PROTECTED]
