[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[Linux-cluster] Very poor performance of GFS2



Hi all,
I'm getting a very poor performance using GFS2. Here some numbers:

A disk usage on a GFS2 filesystem:

[root urani CLUSTER]# time du -hs PostgreSQL814/postgresql-8.1.4/
121M    PostgreSQL814/postgresql-8.1.4/

real    5m49.597s
user    0m0.000s
sys     0m0.004s


On the local disk:

[root urani CLUSTER]# time du -hs postgresql-8.1.4/
116M    postgresql-8.1.4/

real    0m0.015s
user    0m0.000s
sys     0m0.016s

The GFS2 filesystem was created using this:

mkfs.gfs2 -t dades_test:postgres814 -p lock_dlm -j 2 /dev/data/postgres814

It is mounted on two machines (urani and plutoni):

/dev/data/mysql5020 on /CLUSTER/MySQL5020 type gfs2 (rw,hostdata=jid=1:id=196610:first=0) /dev/data/postgres814 on /CLUSTER/PostgreSQL814 type gfs2 (rw,hostdata=jid=1:id=65538:first=0)

I supose it's caused by some problem on my configuration. What I am missing?

Thank you!

Jordi

--
......................................................................
        __
       / /          Jordi Prats
 C E / S / C A      Dept. de Sistemes
     /_/            Centre de Supercomputació de Catalunya

 Gran Capità, 2-4 (Edifici Nexus) · 08034 Barcelona
 T. 93 205 6464 · F.  93 205 6979 · jprats cesca es
......................................................................
[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]