Re: use lutimens

[Eric Blake]

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According to Jim Meyering on 10/10/2009 1:35 PM:
> Those look fine.  Thanks!
> I compared the performance of your modified touch
> on a tmpfs file system on a system running rawhide,
> creating 100,000 empty files (names 1..100,000), and found
> no significant difference when running touch with no options.

Try it again with 'touch -a' or 'touch -m'.  The savings come when
changing only one of the two timestamps: previously, touch had to stat()
to learn the time to preserve, as well as gettime() to learn what time to
change; but the new code can rely on the kernel to do both of those actions.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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