Dirk Heinrichs wrote:
Am Freitag, 15. Februar 2008 schrieb ext Strong Cypher:
For exemple , with reiser4 the portage directory don't take a lot of
space, and so read it it's really fast...
The same is true for reiser3.
I want a alternative
Well, there are plenty: xfs, jfs, ...
Of the current main four FS's on modern linux, here's a general overview
of them:
ext3: Older, reliable, stable. You get very good tools support for ext3
(including online resize) and low cpu-usage for the most part but it's
slower and less space efficient than more recent fs's.
jfs: Better performance than ext3, deals with larger files reasonably
well with low cpu usage. Not very commonly used to my knowledge.
reiserfs (reiser3): very fast for most operations (the exception being
directory creation iirc), especially efficient for dealing with many
small files. It has noticeably higher cpu-usage than ext3/jfs. I
believe there are also some potential performance bottlenecks on SMP
systems as it makes liberal use of the Big Kernel Lock.
xfs: high performance, especially when dealing with many large or small
files; Gets along very well with raid arrays. Noticeably higher cpu
usage than ext3/jfs. IIRC, it aggressively caches its writes so there
is a slight possibility of data loss if your power goes out suddenly in
the middle of a series of writes (I consider this a very small
possibility, it is journalled like the other fs's on this list so the
filesystem will still come up in a consistent state, you just may be
missing some of the data you were writing). Very good online tools
support provided with it.
I'm sure someone will jump in to correct me if I've misremembered
something. Favorite filesystems can be a bit like Window Manager or
favorite Desktop debates.
Aaron
--
gentoo-user@lists.gentoo.org mailing list
