This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: 3.3 compile time regression (22400%)
- From: Albert Chin <gcc at lists dot thewrittenword dot com>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 18 Mar 2003 16:57:22 -0600
- Subject: Re: 3.3 compile time regression (22400%)
- References: <200303182136.h2ILaieV018548@hiauly1.hia.nrc.ca>
- Reply-to: gcc at gcc dot gnu dot org
On Tue, Mar 18, 2003 at 04:36:43PM -0500, John David Anglin wrote:
> > I'm experiencing the same problems on Solaris 9/SPARC, HP-UX 11.00 and
> > 11i, and Redhat Linux 7.1 building LyX 1.3.0
> > (src/frontends/qt2/Dialogs.C). On Solaris and HP-UX, I run out of
> > memory. On RHL 7.1, build time takes 25 minutes.
> >
> > On Solaris, -fno-default-inline brings the build time to 1 hour. It
> > brings the build time to 4 minutes on RHL 7.1.
>
> I was finally successful in building Dialogs.C from LyX 1.3.0 on
> hppa2.0-hp-hpux11.11 with -O2 and -fno-default-inline:
>
> Execution times (seconds)
> ...
> life analysis :17359.67 (92%) usr 9.10 (16%) sys17522.54 (90%) wall
> ...
> expand : 30.61 ( 0%) usr 18.70 (32%) sys 70.85 ( 0%) wall
>
> As can be seen, almost all the time is taken up in life analysis.
What is "life analysis"? Others have seem similar problems during
expand.
--
albert chin (china at thewrittenword dot com)