I think I see what was causing be to believe it was always rounding up
to the cache size. The while test should be while (size <= align/2).
On my machine (athlon, 64 byte cache), the size-32 cache was rounded up
to 64 bytes because of this.
size-128 1416 1470 128 49 49 1 : 248 124
size-64 351 413 64 7 7 1 : 248 124
size-32 649 649 64 11 11 1 : 248 124
^^^^
-- Brian Gerst
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