Date: Thu, 13 Nov 2008 19:04:47 -0800 (PST)
Message-Id: <20081113.190447.252605555.davem@davemloft.net>
To: benh@kernel.crashing.org
Cc: rjw@sisk.pl, linux-kernel@vger.kernel.org, kernel-testers@vger.kernel.org,
       akpm@linux-foundation.org, cloos@jhcloos.com, paul@burly.ondioline.org,
       torvalds@linux-foundation.org
Subject: Re: [Bug #11875] radeonfb lockup in .28-rc (bisected)
From: David Miller <davem@davemloft.net>
In-Reply-To: <20081113.185059.154690040.davem@davemloft.net>
References: <20081113.151116.139760511.davem@davemloft.net>
	<1226624060.7178.100.camel@pasglop>
	<20081113.185059.154690040.davem@davemloft.net>
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 880
Lines: 25

From: David Miller <davem@davemloft.net>
Date: Thu, 13 Nov 2008 18:50:59 -0800 (PST)

> From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Date: Fri, 14 Nov 2008 11:54:20 +1100
> 
> > How does it compare with not having the acceleration ?
> 
> I'll find out for you.

It makes a huge difference, with the acceleration patch:

commit b1ee26bab14886350ba12a5c10cbc0696ac679bf
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date:   Wed Oct 15 22:03:46 2008 -0700

    radeonfb: accelerate imageblit and other improvements

reverted, the test case takes 25 seconds or more instead of
the 7 or 8 seconds we're seeing now.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/