What's a reasonable size ratio for toom32?

[Torbjörn Granlund]

Niels Möller <nisse at lysator.liu.se> writes:

  Pushed now. I've done some benchmarks on shell, on tip-of-tree GMP (no
  local changes). See numbers at the end of this message, comparing
  mpn_mul_basecase, mpn_toom22_mul and mpn_toom32_mul. 

Every single tuneup invocation made by the nightly builds in the last
few weeks have failed.  The last time it worked was around 2023-09-27.

The changes made around that time ought to be the culprit.

Failures with tuneup cause the autobuild system to rerun things 5 times;
that's my electricity bill...

Please test any changes before checking them in.  And please also follow up
test results at e.g., https://gmplib.org/devel/tm/gmp/date!

-- 
Torbjörn
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