From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Miwako Nakai <nickey@be.mbn.or.jp>
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Subject: [linux-lvm] cache buffer size
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Date: Thu Oct 31 21:11:02 2002
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To: lvm <linux-lvm@sistina.com>

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