https://bugzilla.novell.com/show_bug.cgi?id=308698
User dmueller@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=308698#c17
--- Comment #17 from Dirk Mueller 2008-02-18 07:05:06 MST ---
the reason for that is that grep added mbrtowc in the most hottest code path,
and that is probably one of the slowest glibc functions to call.
I're rewritten that code, and it is now ~ factor 10 faster (which makes it
still a factor 2 regression). the debian patches remove that code path
alltogether, but they disable the CW algorithm, which give an even bigger speed
regression. so while I like getting rid of the code path, disabling the CW
algorithm is a no-go.
the correct solution would be to adapt the cw matcher to use wide chars, which
would be roughly en par with the old speed and allow it to be used.
the new suse patches that were added are just entirely broken ;(
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