From: Miwako Nakai <nickey@be.mbn.or.jp>
To: lvm <linux-lvm@sistina.com>
Subject: [linux-lvm] cache buffer size
Date: Thu Oct 31 21:11:02 2002 [thread overview]
Message-ID: <3DC1EFFC.A0EEBAFD@be.mbn.or.jp> (raw)
I'm using jfs on lvm/raid5 with snapshot.
When I copy file, it happens frequently
'raid5: switching cache buffer size XXX -> XXX'.
This message appears to syslog. It caused speed down to access disks.
So, I cut this message. It's seemed ok.
But it's still going to switch cache buffer size. I think it cost
some cpu time. When switching buffer cache size, it always happen
reflushing memories.
I want to fix buffer size. What shall I do?
I asked JFS group. But they do nothing about cache buffer.
kernel 2.4.20-pre10-ac2
lvm 1.0.5
jfs 1.0.23
--
nakai@ezinc.com
next reply other threads:[~2002-10-31 21:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-31 21:11 Miwako Nakai [this message]
2002-11-05 8:15 ` [linux-lvm] cache buffer size Heinz J . Mauelshagen
2002-11-05 17:29 ` Miwako Nakai
2002-11-06 7:08 ` Heinz J . Mauelshagen
-- strict thread matches above, loose matches on Subject: below --
2002-11-06 11:17 Steve Best
2002-11-06 22:04 ` Miwako Nakai
2002-11-07 11:03 ` Heinz J . Mauelshagen
2002-11-08 2:12 ` Luca Berra
2002-11-08 8:54 ` Heinz J . Mauelshagen
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