Messages in this thread | | | Date | Sat, 10 Aug 2002 20:01:17 +0100 | From | Christoph Hellwig <> | Subject | Re: [patch 6/12] hold atomic kmaps across generic_file_read |
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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..
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