[GIT PULL 00/15] perf/core improvements and fixes

From: Arnaldo Carvalho de Melo
Date: Mon Jul 18 2016 - 19:34:41 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Hi Ingo,

Please consider pulling,

- Arnaldo

Build stats:

[root@jouet 5]# perf stat dm
alpine:3.4: Ok
android-ndk:r12b: Ok
centos:5: Ok
centos:6: Ok
centos:7: Ok
debian:7: Ok
debian:8: Ok
debian:experimental: Ok
fedora:21: Ok
fedora:22: Ok
fedora:23: Ok
fedora:24: Ok
fedora:rawhide: Ok
mageia:5: Ok
opensuse:13.2: Ok
opensuse:42.1: Ok
ubuntu:14.04.4: Ok
ubuntu:15.10: Ok
ubuntu:16.04: Ok
ubuntu:16.04-x-armhf: Ok

Performance counter stats for 'dm':

1896.227285 task-clock (msec) # 0.002 CPUs utilized
76,145 context-switches # 0.040 M/sec
9,323 cpu-migrations # 0.005 M/sec
53,894 page-faults # 0.028 M/sec
5,497,625,679 cycles # 2.899 GHz
5,110,226,458 instructions # 0.93 insn per cycle
950,036,839 branches # 501.014 M/sec
16,978,253 branch-misses # 1.79% of all branches

767.910393301 seconds time elapsed

[root@jouet 5]#

The following changes since commit 09211e2530ab4905ec16edecc27022d6b247419d:

Merge tag 'perf-core-for-mingo-20160715' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-07-16 22:36:42 +0200)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160718

for you to fetch changes up to 988dd774dcbd9151c2a643fc7284c5c3c4d0adb7:

perf tests: Add is_printable_array test (2016-07-18 19:50:35 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Properly report when a function wildcard produces no matches in 'perf probe'
(Masami Hiramatsu)

- Balance opening and reading events in 'perf stat', which could cause
it to get stuck trying to close invalid file descriptors (Mark Rutland)

Infrastructure:

- Copy more headers from the kernel, this time for headers that
were just including the contents of its kernel counterparts, should
help resolving the problems with linux-next, where some uapi related
patches seem to be breaking tools/object/ build.

Some more combing will be done, but at least it is possible to build
perf out of tree, via a detached tarball (make help | grep perf)
without including kernel files in its MANIFEST (Arnaldo Carvalho de Melo)

- Fix smatch found errors that were not causing problems, but are
mistakes nonetheless (Dan Carpenter)

- Fix string vs byte array resolving in the python script code (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (7):
perf tools: Add missing linux/compiler.h include to perf-sys.h
perf tools: Remove tools/perf/util/include/asm/byteorder.h
perf tools: Remove tools/perf/util/include/linux/const.h
Remove: kernel unistd*h files from perf's MANIFEST, not used
tools: Copy the bitops files accessed from the kernel and check for drift
perf tools: Remove include/linux/list.h from perf's MANIFEST
tools: Copy linux/{hash,poison}.h and check for drift

Dan Carpenter (2):
perf jit: Add missing curly braces
perf jit: Remove some no-op error handling

Jiri Olsa (3):
perf script python: Fix string vs byte array resolving
perf tools: Make is_printable_array global
perf tests: Add is_printable_array test

Mark Rutland (2):
perf stat: Balance opening and reading events
perf cpu_map: Add more helpers

Masami Hiramatsu (1):
perf probe: Warn unmatched function filter correctly

tools/include/asm-generic/bitops/__fls.h | 44 ++++++++-
tools/include/asm-generic/bitops/arch_hweight.h | 26 ++++-
tools/include/asm-generic/bitops/const_hweight.h | 44 ++++++++-
tools/include/asm-generic/bitops/fls.h | 42 ++++++++-
tools/include/asm-generic/bitops/fls64.h | 37 +++++++-
tools/include/linux/hash.h | 105 ++++++++++++++++++++-
tools/include/linux/poison.h | 91 +++++++++++++++++-
tools/perf/MANIFEST | 13 ---
tools/perf/Makefile.perf | 18 ++++
tools/perf/builtin-stat.c | 8 +-
tools/perf/jvmti/jvmti_agent.c | 10 +-
tools/perf/perf-sys.h | 1 +
tools/perf/tests/Build | 1 +
tools/perf/tests/builtin-test.c | 4 +
tools/perf/tests/is_printable_array.c | 36 +++++++
tools/perf/tests/tests.h | 1 +
tools/perf/util/cpumap.c | 14 ++-
tools/perf/util/cpumap.h | 2 +
tools/perf/util/include/asm/byteorder.h | 2 -
tools/perf/util/include/linux/const.h | 1 -
tools/perf/util/map.c | 3 +
tools/perf/util/probe-event.c | 12 ++-
tools/perf/util/python.c | 12 ---
.../util/scripting-engines/trace-event-python.c | 25 +++--
tools/perf/util/util.c | 16 ++++
tools/perf/util/util.h | 1 +
26 files changed, 512 insertions(+), 57 deletions(-)
create mode 100644 tools/perf/tests/is_printable_array.c
delete mode 100644 tools/perf/util/include/asm/byteorder.h
delete mode 100644 tools/perf/util/include/linux/const.h