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
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/ / 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@xxxxxxxx
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