From: Srinivasa S <srinivasa.s@gmail.com>
To: linux-raid@vger.kernel.org
Subject: a minor query - please help
Date: Thu, 23 Dec 2004 12:34:51 +0530 [thread overview]
Message-ID: <8f8a519404122223042106571b@mail.gmail.com> (raw)
I have configured a 3 disk raid5 on my linux system (fedora core 1
running 2.6.5-1.358 OS). I am basically trying to alter the RMW method
a bit, which I think might improve performance.
Multiple writes come to a stripe at the same time.
Here is the output of the debug stmts I've put in raid5.c code:
-----
Dec 23 11:16:01 raider kernel: check 2: state 0x4 read 00000000 write
2456be00 written 00000000
Dec 23 11:16:02 raider kernel: check 1: state 0x1 read 00000000 write
00000000 written 00000000
Dec 23 11:16:02 raider kernel: check 0: state 0x4 read 00000000 write
41fc8440 written 00000000
Dec 23 11:16:02 raider kernel: locked=0 uptodate=1 to_read=0
to_write=2 failed=0 failed_num=0
-----
Is there any method by which I can make only one write go through at a time?
I'd be glad if any of you could reply to this...
Regards,
Srinivasa S
next reply other threads:[~2004-12-23 7:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-23 7:04 Srinivasa S [this message]
2004-12-23 8:19 ` a minor query - please help Guy
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