Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0afb1704 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

Merge tag 'perf-core-for-mingo' of... 

Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

 into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

New user selectable features:

  - Support recording running/enabled time in 'perf record' (Andi Kleen)

  - New tool: 'perf data' for converting perf.data to other formats,
    initially for the CTF (Common Trace Format) from LTTng (Jiri Olsa, Sebastian Siewior)

User visible changes:

  - Only insert blank duration bracket when tracing syscalls in 'perf trace' (Arnaldo Carvalho de Melo)

  - Filter out the trace pid when no threads are specified in 'perf trace' (Arnaldo Carvalho de Melo)

  - Add 'perf trace' man page entry for --event (Arnaldo Carvalho de Melo)

  - Dump stack on segfaults in 'perf trace' (Arnaldo Carvalho de Melo)

Infrastructure changes:

  - Introduce set_filter_pid and set_filter_pids methods in the evlist class (Arnaldo Carvalho de Melo)

  - Some perf_session untanglement patches, removing the need to pass a
    perf_session instance for things that are related to evlists, so that
    tools that don't deal with perf.data files like trace in live mode can
    make use of the ordered_events class (Arnaldo Carvalho de Melo)

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parents e9e4e443 54cf776a

tools/perf/Build

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ perf-y += builtin-lock.o 
perf-y += builtin-kvm.o

perf-y += builtin-inject.o

perf-y += builtin-mem.o

perf-y += builtin-data.o



perf-$(CONFIG_AUDIT) += builtin-trace.o

perf-$(CONFIG_LIBELF) += builtin-probe.o

tools/perf/Documentation/perf-data.txt

0 → 100644
+40 −0
Original line number Diff line number Diff line 
perf-data(1)

==============



NAME

----

perf-data - Data file related processing



SYNOPSIS

--------

[verse]

'perf data' [<common options>] <command> [<options>]",



DESCRIPTION

-----------

Data file related processing.



COMMANDS

--------

convert::

	Converts perf data file into another format (only CTF [1] format is support by now).

	It's possible to set data-convert debug variable to get debug messages from conversion,

	like:

	  perf --debug data-convert data convert ...



OPTIONS for 'convert'

---------------------

--to-ctf::

	Triggers the CTF conversion, specify the path of CTF data directory.



-i::

	Specify input perf data file path.



-v::

--verbose::

        Be more verbose (show counter open errors, etc).



SEE ALSO

--------

linkperf:perf[1]

[1] Common Trace Format - http://www.efficios.com/ctf

tools/perf/Documentation/perf-record.txt

+3 −0
Original line number Diff line number Diff line
@@ -241,6 +241,9 @@ Capture machine state (registers) at interrupt, i.e., on counter overflows for 
each sample. List of captured registers depends on the architecture. This option

is off by default.



--running-time::

Record running and enabled time for read events (:S)



SEE ALSO

--------

linkperf:perf-stat[1], linkperf:perf-list[1]

tools/perf/Documentation/perf-trace.txt

+6 −0
Original line number Diff line number Diff line
@@ -55,6 +55,9 @@ OPTIONS 
--uid=::

        Record events in threads owned by uid. Name or number.



--filter-pids=::

	Filter out events for these pids and for 'trace' itself (comma separated list).



-v::

--verbose=::

        Verbosity level.
@@ -115,6 +118,9 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. 
--syscalls::

	Trace system calls. This options is enabled by default.



--event::

	Trace other events, see 'perf list' for a complete list.



PAGEFAULTS

----------

tools/perf/Documentation/perf.txt

+6 −1
Original line number Diff line number Diff line
@@ -13,11 +13,16 @@ SYNOPSIS 
OPTIONS

-------

--debug::

	Setup debug variable (just verbose for now) in value

	Setup debug variable (see list below) in value

	range (0, 10). Use like:

	  --debug verbose   # sets verbose = 1

	  --debug verbose=2 # sets verbose = 2



	List of debug variables allowed to set:

	  verbose          - general debug messages

	  ordered-events   - ordered events object debug messages

	  data-convert     - data convert command debug messages



--buildid-dir::

	Setup buildid cache directory. It has higher priority than

	buildid.dir config file option.