Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [discuss] Re: 2.6.19-rc5: known regressions (v3) | Date | Wed, 15 Nov 2006 17:48:05 +0100 |
| |
> OProfile has a simplistic view of the performance monitoring hardware. The > routines in libop/op_alloc_counter.c determine what set of performance registers > is available from the processor in use. There is no check to see what registers > are actually available in the /dev/oprofile directory. > > opcontrol executes ophelp to determine which specific counters to count which > events. The function map_event_to_counter() in libop/op_alloc_counter.c does the > actual selection. It seems what is needed is for map_event_to_counter() to check > to see which counters are available and mark the others as unavailable
Thanks for the explanation. Can you please fix it and release a new version? Documentation/Changes could be adapted then.
-Andi
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |