From: Jim Kukunas <james.t.kukunas@linux.intel.com>
To: linux-raid@vger.kernel.org
Cc: hpa@zytor.com, neilb@suse.de
Subject: AVX RAID5 xor checksumming
Date: Thu, 29 Mar 2012 14:44:17 -0700 [thread overview]
Message-ID: <1333057458-2986-1-git-send-email-james.t.kukunas@linux.intel.com> (raw)
Hi Folks,
The following patch adds an AVX implementation of the RAID5 xor checksumming
functions.
Based on xor_speed, the AVX implementation appears to be ~32% faster than the
SSE implementation on my i7 2600:
generic_sse: 15088.000 MB/sec
avx: 19936.000 MB/sec
Thanks.
next reply other threads:[~2012-03-29 21:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-29 21:44 Jim Kukunas [this message]
2012-03-29 21:44 ` [PATCH] raid5: add AVX optimized RAID5 checksumming Jim Kukunas
2012-03-31 11:38 ` RAID5 XOR speed vs RAID6 Q speed (was Re: AVX RAID5 xor checksumming) John Robinson
2012-04-02 0:01 ` H. Peter Anvin
2012-04-02 22:48 ` Jim Kukunas
2012-04-03 10:23 ` John Robinson
2012-04-03 23:56 ` Jim Kukunas
2012-04-03 23:56 ` [PATCH 1/2] crypto: wait for a full jiffy in do_xor_speed Jim Kukunas
2012-04-03 23:56 ` [PATCH 2/2] crypto: disable preemption while benchmarking RAID5 xor checksumming Jim Kukunas
2012-04-06 20:43 ` RAID5 XOR speed vs RAID6 Q speed (was Re: AVX RAID5 xor checksumming) Dan Williams
2012-04-17 15:32 ` Boaz Harrosh
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