Just FYI. I ran a slightly different version of the test. I used SSD
(for log & cache)! 3 x 32GB SSDs. 2 mirrored for log and one for
cache. The systems is a 4150 with 12 GB of RAM. Here are the results
$ pfexec ./zfs-cache-test.ksh sdpool
System Configuration:
System architecture: i386
System release level: 5.11 snv_111b
CPU ISA list: amd64 pentium_pro+mmx pentium_pro pentium+mmx pentium
i486 i386 i86
Pool configuration:
pool: sdpool
state: ONLINE
scrub: resilver completed after 0h0m with 0 errors on Fri Jul 10
11:33:01 2009
config:
NAME STATE READ WRITE CKSUM
sdpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c7t1d0 ONLINE 0 0 0
c7t3d0 ONLINE 0 0 0
logs ONLINE 0 0 0
mirror ONLINE 0 0 0
c7t2d0 ONLINE 0 0 0
c8t5d0 ONLINE 0 0 0
cache
c8t4d0 ONLINE 0 0 0
errors: No known data errors
zfs unmount sdpool/zfscachetest
zfs mount sdpool/zfscachetest
Doing initial (unmount/mount) 'cpio -C 131072 -o > /dev/null'
48000256 blocks
real 3m27.06s
user 0m2.05s
sys 0m30.14s
Doing second 'cpio -C 131072 -o > /dev/null'
48000256 blocks
real 2m47.32s
user 0m2.09s
sys 0m32.32s
Feel free to clean up with 'zfs destroy sdpool/zfscachetest'.
-Angelo
On Jul 14, 2009, at 12:09 PM, Bob Friesenhahn wrote:
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?
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
http://www.simplesystems.org/users/bfriesen/zfs-discuss/zfs-cache-test.ksh
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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