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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 17:29:28 +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
----------------------------------------------------------------------------
CC| |siddhesh at redhat dot com
--- Comment #1 from Siddhesh Poyarekar <siddhesh at redhat dot com> ---
This is not a regression since I can see the same performance characteristics
on 2.15:
[22:40][sid@Devel tmp ]$ rpm -q glibc
glibc-2.15-59.fc17.x86_64
glibc-2.15-59.fc17.i686
[22:40][sid@Devel tmp ]$ gcc -DN=1 fo.c && time ./a.out
real 0m0.098s
user 0m0.098s
sys 0m0.000s
[22:40][sid@Devel tmp ]$ gcc -DN=10 fo.c && time ./a.out
real 0m0.377s
user 0m0.375s
sys 0m0.002s
[22:40][sid@Devel tmp ]$ gcc -DN=100 fo.c && time ./a.out
real 0m2.765s
user 0m2.759s
sys 0m0.002s
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