[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <a91053ef0911101321he1cf15cx8d15d747b371fde4@mail.gmail.com>
Date: Tue, 10 Nov 2009 13:21:30 -0800
From: Matt Thrailkill <matt.thrailkill@...il.com>
To: Pavel Machek <pavel@....cz>
Cc: Willy Tarreau <w@....eu>, "H. Peter Anvin" <hpa@...or.com>,
Avi Kivity <avi@...hat.com>,
Alan Cox <alan@...rguk.ukuu.org.uk>,
Matteo Croce <technoboy85@...il.com>,
Sven-Haegar Koch <haegar@...net.de>,
Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: i686 quirk for AMD Geode
On Tue, Nov 10, 2009 at 12:54 PM, Pavel Machek <pavel@....cz> wrote:
> *One* CMOV in the inner loop will make your performance go down 20x.
This is 20x slower than not running at all, right?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists