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Re: Massive SPEC failures on trunk
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: Grigory Zagorodnev <grigory_zagorodnev at linux dot intel dot com>
- Cc: gcc at gcc dot gnu dot org, "H. J. Lu" <hjl at lucon dot org>
- Date: Sun, 4 Mar 2007 18:52:00 +0100
- Subject: Re: Massive SPEC failures on trunk
- References: <45E9235F.4000507@linux.intel.com>
> Trunk GCC shows massive (2 compile-time and 6 run-time) failures on SPEC
> CPU2000 and CPU2006 at i386 and x86_64 on -O2 optimization level.
> Regression introduced somewhere between revision 122487 and 122478.
I observe a massive compilation time regression for bootstrap on x86-64 here,
in particular libjava now appears to take *ages* to build:
revision 115944:
real 255m53.382s
user 230m40.934s
sys 13m20.426s
revision 116697:
real 257m18.998s
user 231m43.912s
sys 13m31.991s
revision 121500:
real 257m50.984s
user 230m46.276s
sys 12m19.737s
revision 121686:
real 251m52.693s
user 234m39.234s
sys 12m8.914s
revision 122521:
real 687m3.830s
user 374m37.001s
sys 19m26.378s
eric@linux:~/build/gcc/native> gcc/xgcc -v
Using built-in specs.
Target: x86_64-suse-linux
Configured with: /home/eric/svn/gcc/configure x86_64-suse-linux
--prefix=/home/eric/install/gcc
--with-as=/home/eric/build/binutils-2_17-branch/native/gas/as-new
--with-ld=/home/eric/build/binutils-2_17-branch/native/ld/ld-new
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-__cxa_atexit
--enable-checking=assert,gc,misc,rtl,rtlflag,runtime,tree
Thread model: posix
gcc version 4.3.0 20070304 (experimental)
I'm a bit puzzled by the real/user ratio, the box was supposed to be idle...
--
Eric Botcazou