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Date:      03 Nov 1997 09:10:10 +0100
From:      Wolfram Schneider <wosch@cs.tu-berlin.de>
To:        Chuck Robey <chuckr@Glue.umd.edu>
Cc:        Wolfram Schneider <wosch@cs.tu-berlin.de>, "Jordan K. Hubbard" <jkh@time.cdrom.com>, smp@freebsd.org
Subject:   Re: Some SMP timing tests.
Message-ID:  <p1i7maqgzz1.fsf@panke.panke.de>
In-Reply-To: Chuck Robey's message of Sun, 2 Nov 1997 16:12:47 -0500 (EST)
References:  <Pine.BSF.3.96.971102160833.1115E-100000@picnic.mat.net>

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Chuck Robey <chuckr@Glue.umd.edu> writes:
> OK, I tried it.  I started with no obj at all, did a make obj outside the
> timing loop, just so that I knew it was completely clean.  This goes for
> both runs.  The first one is before the patches were inserted, the second
> one after.  Both on a Tyan Titan II, 2 each PPro 166's e/w 512K cache
> each, 64 Megs main memory.  I have set the source on the first disk, the
> obj on the second, and swap evenly distributed between the two.  Here's
> the results:
> 
> before patching->
> 
> /usr/bin/time -l make -j 12 buildworld:
>      5389.14 real      3229.98 user      2902.01 sys
> With patched Makefile and bsd.subdir.mk, same command:
>      2780.55 real      1696.39 user      1571.73 sys

I doubt that the patch can reduce the time up to 50%.

-- 
Wolfram Schneider   <wosch@apfel.de>   http://www.apfel.de/~wosch/



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