From: Andi Kleen <andi@firstfloor.org>
To: Ling Ma <ling.ma.program@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com,
neleai@seznam.cz, linux-kernel@vger.kernel.org,
Ling Ma <ling.ml@alibaba-inc.com>
Subject: Re: [PATCH RFC] x86:Improve memset with general 64bit instruction
Date: Tue, 15 Apr 2014 07:01:28 +0200 [thread overview]
Message-ID: <20140415050128.GH22728@two.firstfloor.org> (raw)
In-Reply-To: <CAOGi=dOoCkU5Ni8r7pyejMuSdkMt2jOPs2J2OEQ9YxABxNYibw@mail.gmail.com>
On Mon, Apr 14, 2014 at 09:31:16PM +0800, Ling Ma wrote:
> The kernel version 3.14 shows memcpy, memset occur 19622 and 14189
> times respectively.
> so memset is still important for us, correct?
Did you ever see it in a profile log as being hot?
I haven't. Static counts don't mean much.
-Andi
prev parent reply other threads:[~2014-04-15 5:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-07 14:50 [PATCH RFC] x86:Improve memset with general 64bit instruction ling.ma.program
2014-04-07 14:52 ` Ling Ma
2014-04-07 16:42 ` Andi Kleen
2014-04-08 14:00 ` Ling Ma
2014-04-13 15:11 ` Ling Ma
2014-04-13 22:03 ` Andi Kleen
2014-04-14 13:31 ` Ling Ma
2014-04-15 5:01 ` Andi Kleen [this message]
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