Re: perf documentation: update Documentation/ABI/testing with missing perf-related files
On Mon, Jul 15, 2013 at 05:38:15PM -0400, Vince Weaver wrote: > > Add documentation for various files perf_event creates under > /sys/bus/event_source/devices// > > Signed-off-by: Vince Weaver > > diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices > b/Documentation/ABI/testing/sysfs-bus-event_source-devices > new file mode 100644 > index 000..ffa2e4b > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices > @@ -0,0 +1,50 @@ > +What:/sys/bus/event_source/devices//cpumask > + > +Date:2012/09/10 > + nit, white space above > +Contact: Linux kernel mailing list > + > +Description: This value holds a representative core for each > + socket in a system. It is meant to help when > + creating a perf_event event for socket-wide events > + like uncore and northbridge events. > + > + The format is a comma separated list of cpu numbers, > + one for each socket in the system that the PMU in > + question can run on. > + > + For example, on a two-socket Sandybridge-EP machine and > + the cbox0 uncore the value of the file will be: > + 0,8 > + nit, white space above > + > + > +What:/sys/bus/event_source/devices/cpu/rdpmc > + > +Date:2011/11/20 > + > +Contact: Linux kernel mailing list > + > +Description: Indicates whether a CPU allows userspace "rdpmc" > + instructions (unprivileged reads of the performance > + counter MSRs). > + > + You can echo 0 to this value to disable user rdpmc > + access. > + > + > + > +What:/sys/bus/event_source/devices//type > + > +Date:2013/01/08 > + > +Contact: Linux kernel mailing list > + > +Description: This value holds the PMU (Performance Monitor Unit) type > + value that is passed into the perf_event_open() > + attr:type field when opening an event. > + > + The value is a decimal integer. > + > + > + Acked-by: Jiri Olsa thanks, jirka -- 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/
Re: perf documentation: update Documentation/ABI/testing with missing perf-related files
On Mon, Jul 15, 2013 at 05:38:15PM -0400, Vince Weaver wrote: Add documentation for various files perf_event creates under /sys/bus/event_source/devices/dev/ Signed-off-by: Vince Weaver vincent.wea...@maine.edu diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices b/Documentation/ABI/testing/sysfs-bus-event_source-devices new file mode 100644 index 000..ffa2e4b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices @@ -0,0 +1,50 @@ +What:/sys/bus/event_source/devices/dev/cpumask + +Date:2012/09/10 + nit, white space above +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: This value holds a representative core for each + socket in a system. It is meant to help when + creating a perf_event event for socket-wide events + like uncore and northbridge events. + + The format is a comma separated list of cpu numbers, + one for each socket in the system that the PMU in + question can run on. + + For example, on a two-socket Sandybridge-EP machine and + the cbox0 uncore the value of the file will be: + 0,8 + nit, white space above + + +What:/sys/bus/event_source/devices/cpu/rdpmc + +Date:2011/11/20 + +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: Indicates whether a CPU allows userspace rdpmc + instructions (unprivileged reads of the performance + counter MSRs). + + You can echo 0 to this value to disable user rdpmc + access. + + + +What:/sys/bus/event_source/devices/dev/type + +Date:2013/01/08 + +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: This value holds the PMU (Performance Monitor Unit) type + value that is passed into the perf_event_open() + attr:type field when opening an event. + + The value is a decimal integer. + + + Acked-by: Jiri Olsa jo...@redhat.com thanks, jirka -- 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/
perf documentation: update Documentation/ABI/testing with missing perf-related files
Add documentation for various files perf_event creates under /sys/bus/event_source/devices// Signed-off-by: Vince Weaver diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices b/Documentation/ABI/testing/sysfs-bus-event_source-devices new file mode 100644 index 000..ffa2e4b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices @@ -0,0 +1,50 @@ +What: /sys/bus/event_source/devices//cpumask + +Date: 2012/09/10 + +Contact: Linux kernel mailing list + +Description: This value holds a representative core for each + socket in a system. It is meant to help when + creating a perf_event event for socket-wide events + like uncore and northbridge events. + + The format is a comma separated list of cpu numbers, + one for each socket in the system that the PMU in + question can run on. + + For example, on a two-socket Sandybridge-EP machine and + the cbox0 uncore the value of the file will be: + 0,8 + + + +What: /sys/bus/event_source/devices/cpu/rdpmc + +Date: 2011/11/20 + +Contact: Linux kernel mailing list + +Description: Indicates whether a CPU allows userspace "rdpmc" + instructions (unprivileged reads of the performance + counter MSRs). + + You can echo 0 to this value to disable user rdpmc + access. + + + +What: /sys/bus/event_source/devices//type + +Date: 2013/01/08 + +Contact: Linux kernel mailing list + +Description: This value holds the PMU (Performance Monitor Unit) type + value that is passed into the perf_event_open() + attr:type field when opening an event. + + The value is a decimal integer. + + + -- 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/
perf documentation: update Documentation/ABI/testing with missing perf-related files
Add documentation for various files perf_event creates under /sys/bus/event_source/devices/dev/ Signed-off-by: Vince Weaver vincent.wea...@maine.edu diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices b/Documentation/ABI/testing/sysfs-bus-event_source-devices new file mode 100644 index 000..ffa2e4b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices @@ -0,0 +1,50 @@ +What: /sys/bus/event_source/devices/dev/cpumask + +Date: 2012/09/10 + +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: This value holds a representative core for each + socket in a system. It is meant to help when + creating a perf_event event for socket-wide events + like uncore and northbridge events. + + The format is a comma separated list of cpu numbers, + one for each socket in the system that the PMU in + question can run on. + + For example, on a two-socket Sandybridge-EP machine and + the cbox0 uncore the value of the file will be: + 0,8 + + + +What: /sys/bus/event_source/devices/cpu/rdpmc + +Date: 2011/11/20 + +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: Indicates whether a CPU allows userspace rdpmc + instructions (unprivileged reads of the performance + counter MSRs). + + You can echo 0 to this value to disable user rdpmc + access. + + + +What: /sys/bus/event_source/devices/dev/type + +Date: 2013/01/08 + +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org + +Description: This value holds the PMU (Performance Monitor Unit) type + value that is passed into the perf_event_open() + attr:type field when opening an event. + + The value is a decimal integer. + + + -- 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/
