[Intel-gfx] [PATCH i-g-t 3/3] tests/perf_pmu: Verify engine busyness accuracy

[Tvrtko Ursulin]

On 19/12/2017 22:45, Chris Wilson wrote:
> Quoting Tvrtko Ursulin (2017-12-19 15:45:43)
>> +static void debug_error(const char *str, double val, double ref)
>> +{
>> +       igt_debug("%s=%.2f%% (%.2f/%.2f)\n", str, __error(val, ref), val, ref);
>> +}
>> +
>> +static void log_error(const char *str, double val, double ref)
>> +{
>> +       debug_error(str, val, ref);
>> +       igt_info("%s=%.2f%%\n", str, __error(val, ref));
>> +}
> 
> Looking at the CI output, these could really do with some explanation.

Yes a very disappointing think to look at in the morning. Much worse 
than the previous version which used calibrated batches. While at the 
same time new version is much better on my SKL..

Regards,

Tvrtko