On Fri, 03 Feb 2006 20:36, Isaac Devine wrote: > On Fri, 03 Feb 2006 12:15:24 +1300 > > Volker Kuhlmann <[EMAIL PROTECTED]> wrote: > > > files). I use JFS on my Kanotix install, seems quite nice. > > > > What's so nice about it? I mean, what the other filesystems don't do? > > NOTE: This is all about file writing. I haven't done read tests on > these filesystems. > > reiserfs: > affected by partition load (from 20%) > handles files between 5 - 10k very badly (slowly) > can squeeze more space if tail packing is enabled. > metadata journaling > > ext2/3: > * flushes to disk every 5s > * journals data and metadata as well (configurable). Corruption > still possible if data is added to a middle of a file. > * hugely affected by partition load(from 15%) > > jfs: > * very low cpu overhead (lowest) > * file writing unaffected by partition load > * flushes to disk when the IO scheduler tells it to > (see /usr/src/linux/Documentation/filesystems/proc.txt under io vm > heading)(/proc/sys/vm/
I tried jfs on my /usr partition 3 years ago, and it was far from reliable then. I had to fsck-jfs it several times because it failed. So after that I chose reiserfs for /usr and it hasn't failed me yet. Wesley Parish > > xfs: > * low cpu overhead (second lowest) > * very efficient disk usage (best) (caches heaps) > * has option to make a partition a *realtime* partition - > specifically designed for streaming video (I can't find how to > set this up however) > * flushes to disk based on IO scheduler and it's own > "scheduler" (see filesystems/xfs.txt) > > In Summary: > ext3 for data integrity. > jfs for low cpu overhead > xfs for high throughput (Nick should use this) > reiserfs for *very* small files (<3k) > > thanks, > Isaac Devine > > P.S. > To speed up performance check hdparm and make sure the you have > multisect enabled (hdparm -m xx $driv) use hdparm -i $driv and set it > the value of MaxMultiSect. Turn off disk spindown (hdparm -S 0 $driv) > and power management (hdparm -B 255 $driv). Read man hdparm first > however. -- Clinersterton beademung, with all of love - RIP James Blish ----- Mau e ki, he aha te mea nui? You ask, what is the most important thing? Maku e ki, he tangata, he tangata, he tangata. I reply, it is people, it is people, it is people.
