From: Rod Nayfield <nayfield@redhat.com>
To: rgautier@redhat.com
Cc: dm-devel@redhat.com, consult-list@redhat.com
Subject: Re: [Consult-list] dm-multipath has great throughput but we'd like more!
Date: Thu, 18 May 2006 13:00:45 -0400 [thread overview]
Message-ID: <1147971646.3718.22.camel@localhost.localdomain> (raw)
In-Reply-To: <1147935929.27006.57.camel@baggage>
On Thu, 2006-05-18 at 08:05 +0100, Bob Gautier wrote:
> but we're wondering why we are not seeing higher
> throughput per-HBA -- the QL2340 datasheet says it should manage
> 200Mbyte/s and all switches etc. run at 2GBps.
Have you tried different values of rr_min_io in multipath.conf? I think
the default is 1000. (the last value of dmsetup table for the device)
-rod
p.s. you need to purge and recreate the map, just "multipath" will make
some changes but not rr_min_io. (bz 187534)
prev parent reply other threads:[~2006-05-18 17:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-18 7:05 dm-multipath has great throughput but we'd like more! Bob Gautier
2006-05-18 7:19 ` [Consult-list] " Bob Gautier
2006-05-18 7:27 ` Luca Berra
2006-05-18 7:36 ` Jonathan E Brassow
2006-05-18 7:44 ` Luca Berra
2006-05-18 7:25 ` Jonathan E Brassow
2006-05-18 7:44 ` Bob Gautier
2006-05-18 7:55 ` Jonathan E Brassow
2006-05-18 7:59 ` Luca Berra
2006-05-18 8:04 ` [Consult-list] " Nicholas C. Strugnell
2006-05-18 9:42 ` Nicholas C. Strugnell
2006-05-18 10:28 ` Richard Keech
2006-05-22 15:31 ` Ed Wilts
2006-05-18 20:28 ` Steve Lord
2006-05-18 17:00 ` Rod Nayfield [this message]
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