From: Stefan Priebe <s.priebe@profihost.ag>
To: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: rbd striping format v1 / v2 benchmark
Date: Wed, 07 Nov 2012 21:03:43 +0100 [thread overview]
Message-ID: <509ABE9F.5050300@profihost.ag> (raw)
Hello list,
i've done some benchmarks regarding striping / v1 / v2.
Results:
format 1:
write: io=5739MB, bw=65278KB/s, iops=16319, runt= 90029msec
read : io=5771MB, bw=65636KB/s, iops=16408, runt= 90030msec
write: io=77224MB, bw=874044KB/s, iops=213, runt= 90473msec
read : io=178840MB, bw=1983MB/s, iops=495, runt= 90168msec
format 2:
--stripe-count 8 --stripe-unit 524288 -s 4194304
write: io=5377MB, bw=61147KB/s, iops=15286, runt= 90041msec
read : io=5332MB, bw=60617KB/s, iops=15154, runt= 90067msec
write: io=75136MB, bw=849285KB/s, iops=207, runt= 90593msec
read : io=160292MB, bw=1777MB/s, iops=444, runt= 90226msec
--stripe-count 4 --stripe-unit 1048576 -s 4194304
write: io=5301MB, bw=60281KB/s, iops=15070, runt= 90046msec
read : io=5367MB, bw=61031KB/s, iops=15257, runt= 90057msec
write: io=74448MB, bw=840293KB/s, iops=205, runt= 90724msec
read : io=170616MB, bw=1891MB/s, iops=472, runt= 90227msec
So it seems right now that striping doesn't improve performance.
Greets,
Stefan
next reply other threads:[~2012-11-07 20:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 20:03 Stefan Priebe [this message]
2012-11-07 20:09 ` rbd striping format v1 / v2 benchmark Sage Weil
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