Re: [PATCH] Add support for Xtensa architecture
Max Filippov <[email protected]>
| Newsgroups | gmane.linux.oprofile |
|---|---|
| Message-ID | <CAMo8Bf+yX=C3_Tc3QG+18tgfS_Mv9vQxOhcYb6WzCw0arZk=VQ@mail.gmail.com> |
William, On Wed, May 13, 2015 at 3:08 PM, William Cohen <[email protected]> wrote: > You can take a look at what was done for the aarch64 cortex a53 > and cortex a57 to get an idea of other changes required to support the processor. > > https://sourceforge.net/p/oprofile/oprofile/ci/34d0065a1a790fc2be05a5ef1d8b0bbf28b814fe/ Thanks for the pointer. > However, the kernel perf support is needed to provide events for the processor for oprofile to work. > Does the xtensa architecture provide some basic counter events such as cycle and instruction count? Yes, it usually does have cycle counter and it may have other configurable performance counters. -- Thanks. -- Max ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y