RE: [PATCH v3 0/2] ARC: Add perf support for ARC700 cores

Mischa Jonker
2013-11-12T09:44:45Z

> Ah, so its one of those that cannot sample; you might want to fail when we
> try and create a sampling event.

Good suggestion, I'll create a separate patch for that!

> Also, you could consider running an (hr)timer to periodically update the
> events so that you don't miss a hardware counter wrap around -- if that is a
> distinct possibility.

It's a theoretical possibility: the counters are 48 bits. Unlikely to happen
during application development/performance analysis on an embedded core.

Thanks,

Mischa