[PATCHv2] Use sendfile to copy data between file descriptors

Bartosz Gołaszewski bartekgola at gmail.com
Thu Nov 27 12:32:34 UTC 2014


2014-11-27 13:22 GMT+01:00 Denys Vlasenko <vda.linux at googlemail.com>:
> Thanks for catching it. So you were using 4k copy buffer.
> This explains why copies were slow for you...

Yeah, I just ran make defconfig. I forgot it's configurable - regular
coreutils copy tools use 4k buffers as well.

> I pushed a tweaked patch to git, please let me know
> if there are still problems.

Are you sure you pushed it? It doesn't seem to be there.

Bart


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