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From: "Joost.VandeVondele at pci dot uzh.ch" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/38306] [4.4/4.5/4.6 Regression] 15% slowdown w.r.t. 4.3 of computational kernel on some architectures Date: Sun, 20 Feb 2011 16:32:00 -0000 [thread overview] Message-ID: <bug-38306-4-jpUIxTZhkf@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-38306-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38306 --- Comment #20 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2011-02-20 16:28:00 UTC --- additionally for trunk, lto/profile-use seem not to help: > gfortran -O3 -march=native -funroll-loops -ffast-math -flto -fprofile-use test.f90 ; ./a.out Time for evaluation [s]: 4.664 > gfortran -O3 -march=native -funroll-loops -ffast-math -fprofile-use test.f90 ; ./a.out Time for evaluation [s]: 4.665
next prev parent reply other threads:[~2011-02-20 16:28 UTC|newest] Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-38306-4@http.gcc.gnu.org/bugzilla/> 2010-10-01 12:05 ` jakub at gcc dot gnu.org 2011-02-20 15:33 ` steven at gcc dot gnu.org 2011-02-20 16:24 ` Joost.VandeVondele at pci dot uzh.ch 2011-02-20 16:32 ` Joost.VandeVondele at pci dot uzh.ch [this message] 2011-02-20 16:50 ` Joost.VandeVondele at pci dot uzh.ch 2011-02-20 18:59 ` steven at gcc dot gnu.org 2011-02-21 8:29 ` bonzini at gnu dot org 2011-02-21 12:56 ` Joost.VandeVondele at pci dot uzh.ch 2011-04-16 11:17 ` [Bug target/38306] [4.4/4.5/4.6/4.7 " jakub at gcc dot gnu.org 2011-09-09 19:11 ` Joost.VandeVondele at pci dot uzh.ch 2011-09-10 9:52 ` manu at gcc dot gnu.org 2011-09-10 13:11 ` ubizjak at gmail dot com 2011-09-13 8:30 ` Joost.VandeVondele at pci dot uzh.ch 2012-01-16 12:41 ` rguenth at gcc dot gnu.org 2008-11-28 16:02 [Bug target/38306] New: [4.4 Regression] 15% slowdown of computational kernel jv244 at cam dot ac dot uk 2010-04-30 9:00 ` [Bug target/38306] [4.4/4.5/4.6 Regression] 15% slowdown w.r.t. 4.3 of computational kernel on some architectures jakub at gcc dot gnu dot org
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