[Octave-bug-tracker] [bug #66882] Convolution code path improvements

[Arun Giridhar]

Follow-up Comment #44, bug #66882 (group octave):

After testing enough number of times, they look pretty indistinguishable. The
slowdown earlier was likely being caused by repeated testing causing the CPU's
temperature throttling to activate. When I randomized the testing order and
allowed the CPU fans to settle down between tests, the difference
disappeared.

I have not seen the construction "&a[idx + p*q]" before. Usually if some
function needed an address, the calling location would do pointer arithmetic
like "base + delta * sizeof type" or something, but I don't think it would
make a difference.


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