== Quote from Simen kjaeraas (simen.kja...@gmail.com)'s article > 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.
Yea, forgot to mention my numbers were on Win XP. Maybe Windows 7 critical sections are better implemented or something. Can a few other people with a variety of OS's run this benchmark and post their numbers?