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SubjectRe: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)

* Lee Revell <rlrevell@joe-job.com> wrote:

> On 7/31/07, Ingo Molnar <mingo@elte.hu> wrote:
> > Almost all of the Reiser3
> > code runs under the BKL, and the only other major kernel infrastructure
> > that has BKL dependencies is the TTY code.
>
> Also NFS:
>
> $ grep -rIi lock_kernel kernel-source/linux-2.6.17/fs/nfs/ | wc -l
> 94

yeah - but i never saw NFS cause really big BKL latencies. IIRC it uses
the BKL mostly for archaic reasons, most of the NFS code is SMP-safe.
Almost all of the reiser3 code runs under the BKL on the other hand.

Ingo
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