Re: [patch 6/12] hold atomic kmaps across generic_file_read

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Christoph Hellwig wrote:
> On Sat, Aug 10, 2002 at 02:52:49PM -0400, Jeff Garzik wrote:
>
>>While working on a race-free rewrite of cp/mv/rm (suggested by Al), I
>>did overall-time benchmarks on read+write versus sendfile/stat versus
>>mmap/stat, and found that pretty much the fastest way under Linux 2.2,
>>2.4, and solaris was read+write of PAGE_SIZE, or PAGE_SIZE*2 chunks.
>>[obviously, 2.2 and solaris didn't do sendfile test]
>
>
> Solaris 9 (and Solaris 8 with a certain patch) support Linux-style
> sendfile(). Linux 2.5 on the other hand doesn't support sendfile to
> files anymore..

Really? Bummer :) That was a useful hack for some cases...

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