Messages in this thread | | | Subject | Re: 2.1.76, nfs client, and memory fragmentation | From | Andi Kleen <> | Date | 05 Jan 1998 20:44:53 +0100 |
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Miguel de Icaza <miguel@nuclecu.unam.mx> writes:
> > You tweaked my curiosity, so I de-inlined copy_to/from_user and did > > some comparisons. Bottom line is that on my machine it doesn't seem > > to care either way.. performance stayed the same. I did Bonnie and > > some network throughput tests in four configs. I'm only posting the > > Bonnie runs in the interest of brevity. > > ext2 file system code uses memcpy_fromfs to copy blocks, not > copy_to/from_user.
2.1.x doesn't have a memcpy_fromfs() so it's rather unlikely ;) 2.0 memcpy_fromfs has been renamed to copy_from_user() in early 2.1. So ext2 uses cfu like everyone else.
-A.
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