This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug libstdc++/54075] [4.7.1] unordered_map insert 3x slower than 4.6.2
- From: "fdumont at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 29 Jul 2012 16:44:26 +0000
- Subject: [Bug libstdc++/54075] [4.7.1] unordered_map insert 3x slower than 4.6.2
- Auto-submitted: auto-generated
- References: <bug-54075-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54075
--- Comment #23 from FranÃois Dumont <fdumont at gcc dot gnu.org> 2012-07-29 16:44:26 UTC ---
Author: fdumont
Date: Sun Jul 29 16:44:18 2012
New Revision: 189938
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189938
Log:
2012-07-29 FranÃois Dumont <fdumont@gcc.gnu.org>
PR libstdc++/54075
* include/bits/hashtable_policy.h
(_Prime_rehash_policy::_M_next_bkt): Add a growth factor set to 2
to boost growth in the number of buckets.
* testsuite/performance/23_containers/insert/unordered_set.cc: New.
Added:
trunk/libstdc++-v3/testsuite/performance/23_containers/insert/unordered_set.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/hashtable_policy.h