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Re: [PATCH] Make c0_compare_int_usable faster

To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Subject: Re: [PATCH] Make c0_compare_int_usable faster
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 22 Oct 2007 22:04:00 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <20071023.011416.61947729.anemo@mba.ocn.ne.jp>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20071023.011416.61947729.anemo@mba.ocn.ne.jp>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.14 (2007-02-12)
On Tue, Oct 23, 2007 at 01:14:16AM +0900, Atsushi Nemoto wrote:

> Use delta value based on its speed for faster probing.

Still the same issue, it breaks with Qemu.  You probably don't see this
if you're testing on a desktop where the TSC is used for timing but on
a laptop it breaks big time.  I need to increase the shift value to at
least like 15 to get it to work more or less reliably with Qemu, so a
somewhat different approach is needed.

  Ralf

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