>> There is. I beleive QueryPerformanceCounter has sub-mirosecond >> resolution. > >> Can we just replace gettimeofday() with a version that's basically: > >No, because it's also used for actual time-of-day calls. It'd be >necessary to hack executor/instrument.c in particular.
Here's a patch that does just this. On my system, the counter resolution is 3192090000 ticks per second (Intel Xeon CPU). On a AMD Athlon XP system, it's 3579545 ticks per second (a lot less, but still way way way better than gettimeofday has on win32). I also hacked commands/explain.c to get the total runtime of the query correct. //Magnus
win32_instr.patch
Description: win32_instr.patch
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