On Tue, 10 Apr 2001, Matt Dillon wrote:
> It's randomness that will kill performance. You know the old saying
> about caches: They only work if you get cache hits, otherwise
> they only slow things down.
I wonder ... how does FreeBSD handle negative directory entries?
That is, /bin/sh looks through the PATH to search for some executable
(eg grep) and doesn't find it in the first 3 directories.
The next time the script is started (it might be ran for every file
in a large compile) the next invocation of the script looks for the
file in 3 directories where it isn't present .. again.
Does the vfs cache handle this or does FreeBSD have to go down into
the filesystem code every time?
Rik
--
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However, without VM there's truly nothing to lose...
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