Hello Joerg, Ping!
Cheers, Michael On 02/17/2015 06:32 AM, Michael Kerrisk (man-pages) wrote: > Hi Joerg, > > Would you be willing to review/comment on Vince's patch, please. > > Cheers, > > Michael > > On 02/11/2015 08:06 PM, Vince Weaver wrote: >> >> This patch relates to the exclude_host and exclude_guest bits added >> by the following commit: >> >> exclude_host, exclude_guest; Linux 3.2 >> commit a240f76165e6255384d4bdb8139895fac7988799 >> Author: Joerg Roedel <joerg.roe...@amd.com> >> Date: Wed Oct 5 14:01:16 2011 +0200 >> >> perf, core: Introduce attrs to count in either host or guest mode >> >> Signed-off-by: Joerg Roedel <joerg.roe...@amd.com> >> Signed-off-by: Gleb Natapov <g...@redhat.com> >> Signed-off-by: Peter Zijlstra <a.p.zijls...@chello.nl> >> Link: >> http://lkml.kernel.org/r/1317816084-18026-2-git-send-email-g...@redhat.com >> Signed-off-by: Ingo Molnar <mi...@elte.hu> >> >> The updated manpage text clarifies that the "exclude_host" and >> "exclude_guest" perf_event_open() attr bits only apply in the >> context of a KVM environment and are currently x86 only. >> >> This is a resend of the patch; the previous time I sent it >> (http://thread.gmane.org/gmane.linux.man/7500) it did not >> receive any comments. >> >> Signed-off-by: Vince Weaver <vincent.wea...@maine.edu> >> >> diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 >> index 39c8d8c..1ea56c9 100644 >> --- a/man2/perf_event_open.2 >> +++ b/man2/perf_event_open.2 >> @@ -1006,11 +1006,25 @@ struct sample_id { >> .TP >> .IR "exclude_host" " (since Linux 3.2)" >> .\" commit a240f76165e6255384d4bdb8139895fac7988799 >> -Do not measure time spent in VM host. >> +When conducting measurements that include processes running >> +VM instances (i.e. have executed a >> +.I KVM_RUN >> +.BR ioctl (2) >> +) only measure events happening inside a guest instance. >> +This is only meaningful outside the guests; this setting does >> +not change counts gathered inside of a guest. >> +Currently this functionality is x86 only. >> .TP >> .IR "exclude_guest" " (since Linux 3.2)" >> .\" commit a240f76165e6255384d4bdb8139895fac7988799 >> -Do not measure time spent in VM guest. >> +When conducting measurements that include processes running >> +VM instances (i.e. have executed a >> +.I KVM_RUN >> +.BR ioctl (2) >> +) do not measure events happening inside guest instances. >> +This is only meaningful outside the guests; this setting does >> +not change counts gathered inside of a guest. >> +Currently this functionality is x86 only. >> .TP >> .IR "exclude_callchain_kernel" " (since Linux 3.7)" >> .\" commit d077526485d5c9b12fe85d0b2b3b7041e6bc5f91 >> > > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
