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Date: Tue, 4 Nov 2003 15:56:28 -0800 (PST)
From: Linus Torvalds <torvalds@osdl.org>
To: Ulrich Drepper <drepper@redhat.com>
cc: "Bill Rugolsky Jr." <brugolsky@telemetry-investments.com>,
       Paul Venezia <pvenezia@jpj.net>,
       Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: ext3 performance inconsistencies, 2.4/2.6
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On Tue, 4 Nov 2003, Ulrich Drepper wrote:
>
>  This was, I think, the result of one of the last changes in the locking
> code where the libc side wasn't updated correctly.  I've done this and
> this is what I see:

Goodie. 

> drepper@ht 20031104-2$ time ./u > /dev/null
> real    0m1.272s
> user    0m1.270s
> sys     0m0.000s
> 
> drepper@ht 20031104-2$ time LD_ASSUME_KERNEL=2.4.1 ./u > /dev/null
> real    0m0.316s
> user    0m0.320s
> sys     0m0.000s
> 
> drepper@ht 20031104-2$ time LD_LIBRARY_PATH=. ./u > /dev/null
> real    0m0.207s
> user    0m0.210s
> sys     0m0.000s
> 
> The first is the old nptl code, the second LinuxThreads, the third the
> current nptl code.

Now _that_ looks a hell of a lot better. Thanks.

		Linus