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SubjectRe: ext3 performance inconsistencies, 2.4/2.6

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

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