dsimcha <dsim...@yahoo.com> wrote:
This is a synthetic, extreme corner case benchmark, but I think it
hammers home
the point that such problems are at least plausible. Tested on a Core 2
Quad with
-O -inline -release:
Timing with affinity for all 4 CPUs: 28390 milliseconds
Timing with affinity for only 1 CPU: 533 milliseconds
Tested this on a Core 2 Duo, same options. OS is Windows 7, 64bit. It
scales roughly inverse linearly with number of threads:
163ms for 1,
364ms for 2,
886ms for 4
This is quite different from your numbers, though.
--
Simen
