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[Bug regression/35671] GCC 4.4.x vs. 4.2.x performance regression
- From: "jhopper at safe-mail dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Jul 2009 04:34:35 -0000
- Subject: [Bug regression/35671] GCC 4.4.x vs. 4.2.x performance regression
- References: <bug-35671-5637@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #12 from jhopper at safe-mail dot net 2009-07-30 04:34 -------
one more note about executable size in memory:
while there was no difference in sizes in memory for all gcc versions
for icc versions there was a great difference:
VERSION VIRT RSS
gcc (all) ~2000kb 500kb
icc10 (all) ~5500kb 800kb
but that should be obvious due to the additional linking in icc to libimf.so,
libintlc.so.5, libsvml.so, libgcc_s.so.1, libpthread.so.0 and libdl.so.2
that can possibly be countered to make a more fair memory usage comparison
between icc and gcc by modification to my icc.cfg configuration files, which
were when compiling this program:
http://manoa.flnet.org/icc10.cfg
http://manoa.flnet.org/icc11.cfg
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35671