[Bug 230491] stat(1): Improve performance with getpwuid() and getgrgid() caching

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Fri Aug 10 12:03:44 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230491

--- Comment #2 from Thomas Hurst <tom at hur.st> ---
The built-in caching doesn't seem useful for this case.  Enabling it results in
a test run creating this unfortunate entry in top:

63957 root             9  52    0 24000K  4696K uwait  19   9:15 268.91% nscd

and actually *slows down* stat(1) in my tests - /usr/src goes from 22 seconds
to almost 90, and my CVS repository scan goes from 55 seconds to 2 minutes.

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