From: "H. Peter Anvin" <hpa@zytor.com>
To: Jim Kukunas <james.t.kukunas@linux.intel.com>
Cc: x86@kernel.org, neilb@suse.de, linux-kernel@vger.kernel.org,
mingo@redhat.com, tglx@linutronix.de, linux-raid@vger.kernel.org
Subject: Re: arch/86: AVX RAID5 xor checksumming
Date: Tue, 10 Apr 2012 10:37:00 -0700 [thread overview]
Message-ID: <4F846FBC.9060503@zytor.com> (raw)
In-Reply-To: <1334078551-6859-1-git-send-email-james.t.kukunas@linux.intel.com>
On 04/10/2012 10:22 AM, Jim Kukunas wrote:
> 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.
>
I think this (and the SSSE3 patches for RAID-6) should go in via the
RAID tree. Neil, do you agree?
However,
Acked-by: H. Peter Anvin <hpa@zytor.com>
-hpa
next prev parent reply other threads:[~2012-04-10 17:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-10 17:22 arch/86: AVX RAID5 xor checksumming Jim Kukunas
2012-04-10 17:22 ` [PATCH] raid5: add AVX optimized RAID5 checksumming Jim Kukunas
2012-04-10 17:37 ` H. Peter Anvin [this message]
2012-04-10 20:14 ` arch/86: AVX RAID5 xor checksumming NeilBrown
2012-04-10 21:20 ` H. Peter Anvin
2012-04-14 12:02 ` Ingo Molnar
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