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Re: F77 makefile again.
- To: craig at jcb-sc dot com, hjl at varesearch dot com
- Subject: Re: F77 makefile again.
- From: mrs at wrs dot com (Mike Stump)
- Date: Mon, 7 Jun 1999 12:08:49 -0700
- Cc: egcs at egcs dot cygnus dot com
> From: craig@jcb-sc.com
> Date: 7 Jun 1999 12:41:55 -0000
> To: hjl@varesearch.com
> >Why do I have an impression that people who modify g77 makefiles in
> >egcs either don't care about parallel make or don't want to spend
> >time to write good makefiles.
> Well, part of the problem is that we don't test parallel make (I doubt
> my poor P2/233 could make much use of it),
I feel this is a popular misconception. Try timing a complete build
with -j1 -j2 and -j3. I have found that -j3 is the fastest total
elapsed time on my uniprocessor system. People that are very tight on
memory may find that things are not sped up with -j3, but other than
that I would expect that things will be faster.
> and we basically never get any proper bug reports showing failures
> during parallel make.
Gee, I see them every now and then. I fix most of them I see.
> (The occasional bug report we do get just doesn't tell us enough to
> help us understand the problem.)
Gee, I haven't seen many that are incomplete.