30 December 2002
GForth discussion list

I compiled the snapshot gforth-0.5.9-20021227 with Redhat 7.0,
using gcc-2.95.3, gcc-2.96-85, and gcc-3.2.1, with no apparent
problems.  Use of the configuration recommendations of the Known
Problems page affected only the benchmark times.

Given the same configuration options, gforth-0.5.9 ran about the
same speed with each compiler.  gcc-2.96-85 gave slightly better
speeds.

The option --enable-force-reg affected speed of gforth-0.5.9
quite a lot.  The other options did not affect speed much.

gforth-0.5.9 ran the benchmarks much faster than the best
gforth-0.5.0 benchmarks.


The gforth-0.5.0 release compiled with gcc-2.96-85 and gcc-3.2.1
only if 'configure'ed with --enable-indirect-threaded.

'configure' options affected the speed of gforth-0.5.0 a lot.

-fno-gcse (for gcc) and --enable-force-reg (for configure)each
added some speed to gforth-0.5.0.

gforth-0.5.0 ran much faster when compiled with gcc-2.95.3 than
with gcc-2.96-85 or gcc-3.2.1.


Test notes (about 350 lines) are at 

http://www.nemr.net/~dnarnold/gforth-listings/testlog.20021230.gforth-0.5.9.gz


Is this a suitable way to report informal test results?

Regards,
David Arnold

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