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Date: Tue, 29 Sep 2009 17:55:36 +0200
Message-ID: <5b31733c0909290855j4da3753je357a5d9ce01efdf@mail.gmail.com>
Subject: Re: [Qemu-devel] Re: [Qemu-commits] [COMMIT a4b18c6] tcg/x86_64:
	generated dec/inc instead of sub/addwhen possible
From: Filip Navara <filip.navara@gmail.com>
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To: Laurent Desnogues <laurent.desnogues@gmail.com>
Cc: Avi Kivity <avi@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On Tue, Sep 29, 2009 at 5:53 PM, Laurent Desnogues
<laurent.desnogues@gmail.com> wrote:
> On Tue, Sep 29, 2009 at 5:51 PM, Filip Navara <filip.navara@gmail.com> wr=
ote:
>>
>> I vaguely remember measuring it and the results were different on
>> Pentium IV-based and Pentium M-based processors. On one of them
>> inc/dec was faster, while on the other it was add/sub. I can't
>> remember which one had which results though.
>
> Do you mean in a QEMU context or something else? =A0If that
> was with QEMU, was the program significantly large?

In QEMU/TCG context. It was some synthetic benchmark, most probably Dhrysto=
ne.

Best regards,
Filip Navara