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[Bug target/40454] [4.4 regression] zlib is about 20% slower when compiled with GCC 4.4.1
- From: "t.artem at mailcity dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 31 Jan 2011 21:46:42 +0000
- Subject: [Bug target/40454] [4.4 regression] zlib is about 20% slower when compiled with GCC 4.4.1
- Auto-submitted: auto-generated
- References: <bug-40454-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40454
--- Comment #17 from Artem S. Tashkinov <t.artem at mailcity dot com> 2011-01-31 21:46:29 UTC ---
At least on i686 platform the difference is marginal (GCC flags: -O2
-march=pentium-m -fomit-frame-pointer, Intel Core Gen 2 CPU):
GCC 3.4.6
real 0m15.859s
user 0m15.662s
sys 0m0.177s
GCC 4.5.2
real 0m16.147s
user 0m15.939s
sys 0m0.187s
I'm compressing a 400MB TAR archive containing miscellaneous binaries and
documentation. So the issue is m68060 specific.