Voy a comentar brevemente mi experiencia personal: Estoy trabajando hace unos meses en la unificacion de tres servidores de correo en una sola plataforma. La cantidad de usuarios es aproximadamente unos 50.000 Uno de los primeros benchmarks que corri fue para ver que filesystem usar. De los tres que probe (ext3, reiserfs y xfs) el claro elegido fue reiserfs. Porque? Mejor performance para archivos pequenhos (fundamental para los mails), Mejor performance para directorios con cientos de subdirectorios y menor utilizacion de cpu (al menos que ext3, en eso xfs es mejor). De todas formas es una pena que reiserfsv4 todavia no este soportado en los kernels 2.6, ya que tiene -aun mejor- performance que reiserfsv3 (la version actual). Pero supongo que a lo largo de este anho se implemente. Si les interesa: www.namesys.com/benchmarks.htm Saludos Marcos Guglielmetti wrote:
Pero acá alguien duda de que ext3 sea peor:
Re: [a-users] File Systems? De: tim hall <[email protected]> (GlastonburyMusic) Para: AGNULA user forum <[email protected]> Fecha: 23/01/06 16:28
On Sunday 22 January 2006 20:43, Dominique Michel was like:
Surely you mean ext3?
You may be right, because I have changed it. I use ext2.
The advantage of reiser and xfs over ext3 is at reiser and xfs have a journal that's built into the data stream somehow and not a separate file. I have learn that only recently and I have choose ext2 because
at
I get big trouble onetime with an ext3 partition where the journal was crashed.
It should be possible to rebuild the journal. Not sure how you do that offhand.
Basiquelly I see ext3 as an ext2 filesystem with a journal, so the performances will not be better. The article on
http://myweb.cableone.net/eviltwin69/Arcana.html#Mark%20Knecht's%20filesyst
em%20tests semm to say the same thing with other word. He get worst
result
with ext3 as with ext2. It is the case because the ext3 fs must stop
to
write the datas when it write the journal.
Yes, this is absolutely true. However, when testing software with realtime privileges, journalling is a _must_ :|. As the journal is a bolt-on in ext3 it required less head-scratching at the time.
So I will try to change my system partition to reiser or xfs when I
get
some time.
Be interested to hear how you get on.