Messages in this thread | | | Date | Tue, 6 Dec 2011 11:22:28 -0800 | Subject | Re: [PATCH 00/12] perf_events: add support for sampling taken branches (v2) | From | Stephane Eranian <> |
| |
On Tue, Dec 6, 2011 at 11:20 AM, Peter Zijlstra <peterz@infradead.org> wrote: > On Tue, 2011-12-06 at 11:14 -0800, Stephane Eranian wrote: > >> >> > Other than the few comments given it all looks good. My main worry is >> >> > the Intel only aspect, I'd really love for there to be another platform >> >> > that could implement at least part of this. > >> There is a hardware branch buffer on all Itanium processors. >> You can find the description for the McKinley implementation >> (Itanium2) branch buffer in section 10.3.9 from: >> http://download.intel.com/design/Itanium2/manuals/25111003.pdf > > > Yeah, I knew Itanic has it, but one its sinking (and doesn't have perf > support), and two its still Intel ;-) > It's just an example of a different implementation of a branch buffer. That's why I mentioned it. The question is: could the branch_stack abstraction map to it. I think it could.
> -- 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/
| |