Re: [zfs-discuss] Why is Solaris 10 ZFS performance so terrible?

[Gaëtan Lehmann]

Le 14 juil. 09 à 18:09, Bob Friesenhahn a écrit :

On Tue, 14 Jul 2009, Jorgen Lundman wrote:

I have no idea. I downloaded the script from Bob without modifications and ran it specifying only the name of our pool. Should I have changed something to run the test?

If your system has quite a lot of memory, the number of files should be increased to at least match the amount of memory.

We have two kinds of x4500/x4540, those with Sol 10 10/08, and 2 running svn117 for ZFS quotas. Worth trying on both?

http://www.simplesystems.org/users/bfriesen/zfs-discuss/zfs-cache-test.ksh

It is useful to test as much as possible in order to fully understand the situation. Since results often get posted without system details, the script is updated to dump some system info and the pool configuration. Refresh from

System Configuration: Sun Microsystems SUN FIRE X4150
System architecture: i386
System release level: 5.10 Generic_139556-08


Pool configuration:
  pool : rpool
 état : ONLINE
 purger : aucun requis
configuration :

        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror      ONLINE       0     0     0
            c1t0d0s0  ONLINE       0     0     0
            c1t1d0s0  ONLINE       0     0     0

erreurs : aucune erreur de données connue

zfs unmount rpool/zfscachetest
zfs mount rpool/zfscachetest

Doing initial (unmount/mount) 'cpio -C 131072 -o > /dev/null'
48000256 blocs

real    4m56.84s
user    0m1.72s
sys     0m28.48s

Doing second 'cpio -C 131072 -o > /dev/null'
48000256 blocs

real    13m48.19s
user    0m2.07s
sys     0m44.45s

Feel free to clean up with 'zfs destroy rpool/zfscachetest'.


--
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr  http://www.itk.org
http://www.mandriva.org  http://www.bepo.fr

Here is the result on another host with faster drives (sas 10000 rpm) and solaris 10u7. CPU ISA list: amd64 pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

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