Re: A filename to label translation daemon

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On Tue, 2012-08-14 at 10:01 -0400, Eric Paris wrote:
> Initial really really rough testing using pcre:
> 
> Load and free DB 100 times using GLIBC:
>  8.370 seconds used by the processor.
> 
> Load and free DB 100 times using pcre:
>  1.800 seconds used by the processor.
> 
> This is just using PCRE to load and compile the DB. Not using an
> mmap'd precompiled version.  That's next on the testing list.  But
> switching to pcre is already a huge time win it seems....

Do you need to convert any of the regexes in file_contexts to address
the differences between PCRE and POSIX regexes?

You should check that setfiles using glibc regex followed by setfiles
using PCRE does not change anything on the filesystem, i.e. run the
existing setfiles on all filesystems, then run the setfiles using PCRE
with -nv to report any changes that would be made without applying them.

-- 
Stephen Smalley
National Security Agency


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