On Mon, Jul 13, 2009 at 4:41 PM, Bob
Friesenhahn<bfrie...@simple.dallas.tx.us> wrote:
> On Mon, 13 Jul 2009, Jim Mauro wrote:
>
>> Bob - Have you filed a bug on this issue? I am not up to speed on this
>> thread, so I can not comment on whether or not there is a bug here, but you
>> seem to have a test case and supporting data. Filing a bug will get the
>> attention of ZFS engineering.
>
> No, I have not filed a bug report yet. Any problem report to Sun's Service
> department seems to require at least one day's time.
>
> I was curious to see if recent OpenSolaris suffers from the same problem,
> but posted results (thus far) are not as conclusive as they are for Solaris
> 10.
It doesn't seem to be quite as bad as S10, but there is certainly a hit.
# /var/tmp/zfs-cache-test.ksh
zfs create rpool/zfscachetest
Creating data file set (400 files of 8192000 bytes) under
/rpool/zfscachetest ...
Done!
zfs unmount rpool/zfscachetest
zfs mount rpool/zfscachetest
Doing initial (unmount/mount) 'cpio -o > /dev/null'
6400033 blocks
real 1m26.16s
user 0m12.83s
sys 0m25.88s
Doing second 'cpio -o > /dev/null'
6400033 blocks
real 2m44.46s
user 0m12.59s
sys 0m24.34s
Feel free to clean up with 'zfs destroy rpool/zfscachetest'.
# cat /etc/release
OpenSolaris 2009.06 snv_111b SPARC
Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 07 May 2009
# uname -srvp
SunOS 5.11 snv_111b sparc
--
Mike Gerdts
http://mgerdts.blogspot.com/
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