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[Bug libc/15884] Big performance regression in strcoll
- From: "siddhesh at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Fri, 23 Aug 2013 17:52:16 +0000
- Subject: [Bug libc/15884] Big performance regression in strcoll
- Auto-submitted: auto-generated
- References: <bug-15884-131 at http dot sourceware dot org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=15884
Siddhesh Poyarekar <siddhesh at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Siddhesh Poyarekar <siddhesh at redhat dot com> ---
Also, the test case is invalid. It compares a space with an exclamation point,
both of which are ignored as collation sequences due to which the algorithm
actually goes through all the passes for the string before it compares them on
a binary level. Replace 32 and 33 with 'a' and 'b' and you'll see the
difference.
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