[MLton-devel] benchmarks -align {4,8}

Henry Cejtin henry@sourcelight.com
Fri, 25 Apr 2003 14:48:53 -0500


I'm  really  rather surprised at the slowdowns caused by aligning mod 8.  The
only way that this can happen that I know of is from wasting  some  space  in
the  cache and also not getting stuff in cache line loads.  I.e., if you have
2 ints which are adjacent then you have a good chance of  getting  them  both
with one cache line load if things are only aligned mod 4.

Did you also align the stack?


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