With CIFS reading only, iostat looks like:
# zpool iostat dataPool 1 200
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
dataPool 18.3T 21.7T 577 59 35.1M 1.36M
dataPool 18.3T 21.7T 38 0 3.38M 0
dataPool 18.3T 21.7T 22 0 2.37M 0
dataPool 18.3T 21.7T 33 0 3.25M 0
dataPool 18.3T 21.7T 54 0 5.56M 0
^C
Regards
John
From: cifs-discuss-boun...@opensolaris.org
[mailto:cifs-discuss-boun...@opensolaris.org] On Behalf Of Ryan John
Sent: 08 June 2010 17:24
To: cifs-discuss@opensolaris.org
Subject: [cifs-discuss] Poor performance
Hi,
I'm getting poor read performance on some of my shares using CIFS, and I
can't see what's going wrong.
Read speed is around 10Mbits per second.
My network is all gigabit and even 10Gbit to the storage servers. The
hardware is an x4540 configured with RAIDz2 and ZIL on a pair of SSDs
NFS to the same shares performs about twice the speed.
I did a zpool iostat while both the nfs and CIFS read are happening.
# zpool iostat dataPool 1 200
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
dataPool 18.3T 21.7T 578 59 35.2M 1.37M
dataPool 18.3T 21.7T 46 0 4.99M 0
dataPool 18.3T 21.7T 231 0 26.1M 0
dataPool 18.3T 21.7T 280 0 31.7M 0
dataPool 18.3T 21.7T 352 0 40.6M 0
dataPool 18.3T 21.7T 348 0 41.1M 0
dataPool 18.3T 21.7T 371 0 45.3M 0
dataPool 18.3T 21.7T 475 0 57.6M 0
dataPool 18.3T 21.7T 409 0 49.7M 0
dataPool 18.3T 21.7T 483 0 58.8M 0
dataPool 18.3T 21.7T 188 0 15.4M 0
dataPool 18.3T 21.7T 143 1.49K 13.4M 5.68M
Do you think my machine is at the limit of it's performance?
Regards
John Ryan
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