Hey folks,

I'm in search of a microsecond- or nanosecond-accurate timer for a project but the microsecond field returned from gettimeofday() is completely bogus. As a test I wrote a simple loop that calls gettimeofday() 100 times and prints the results each time before quitting.

Here's what it looks like in Windows (truncated for brevity, MinGW used):



This is what it looks like when ran on both a physical Wii and in the Dolphin emulator with any of the CPU options:



They are both in the order that they were executed. The Wii version doesn't just fail but it also bounces around with seemingly random numbers in the microsecond slot.

Is there anything that I can do either to fix gettimeofday() or replace it with another high-granularity timer?

Thanks!
-ObsidianX

For the record, after much Google'ing around I finally found that if I use gettime() and diff_usec(start_time, current_time) I can get an elapsed time in microseconds.
There are various diff_ functions for different time measurements available.
All are found in <ogc/lwp_watchdog.h>

It looks like __libogc_gettod_r() in timesupp.c should be using tick_to_microsecs() instead of tick_microsecs().