On Tue, Mar 24, 2015 at 8:25 AM, Sun, Yongjie <yongjie....@intel.com> wrote: > Can I make it work well without NMI? >\NMI buys you profiling of kernel critical sections where interrupts are off. >It buys you nothing for user level code. So yes, you can use another interrupt. If you are talking about the NMI watchdog, then you can also disable it (echo 0 >/proc/sys/kernel/watchdog). You will gain an extra PMU counter. You will lose the kernel panic crashdump on kernel deadlock.
> -----Original Message----- > From: Stephane Eranian [mailto:eran...@googlemail.com] > Sent: Wednesday, March 18, 2015 11:53 PM > To: Sun, Yongjie > Cc: perfmon2-devel > Subject: Re: [perfmon2] perfmon2 interrupt type? > > Hi, > > On Tue, Mar 17, 2015 at 6:19 AM, Sun, Yongjie <yongjie....@intel.com> wrote: >> Hi all, >> Can you tell me which type interrupt does perfmon2 use? NMI? INTR? >> > Are you talking about perf_events on X86? > If so, then it uses NMI. > >> >> >> ---------------------------------------------------------------------- >> -------- Dive into the World of Parallel Programming The Go Parallel >> Website, sponsored by Intel and developed in partnership with Slashdot >> Media, is your hub for all things parallel software development, from >> weekly thought leadership blogs to news, videos, case studies, >> tutorials and more. Take a look and join the conversation now. >> http://goparallel.sourceforge.net/ >> _______________________________________________ >> perfmon2-devel mailing list >> perfmon2-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/perfmon2-devel > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > perfmon2-devel mailing list > perfmon2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/perfmon2-devel ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
