Re: [GIT PULL 0/6] perf/core improvements and fixes

2017-03-16 Thread Ingo Molnar 

* Arnaldo Carvalho de Melo  wrote:

> Hi Ingo,
> 
>   Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit ffa86c2f1a8862cf58c873f6f14d4b2c3250fb48:
> 
>   Merge tag 'perf-core-for-mingo-4.12-20170314' of 
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core 
> (2017-03-15 19:27:27 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git 
> tags/perf-core-for-mingo-4.12-20170316
> 
> for you to fetch changes up to 61f35d750683b21e9e3836e309195c79c1daed74:
> 
>   uprobes: Default UPROBES_EVENTS to Y (2017-03-16 12:42:02 -0300)
> 
> 
> perf/core improvements and fixes:
> 
> New features:
> 
> - Add 'brstackinsn' field in 'perf script' to reuse the x86 instruction
>   decoder used in the Intel PT code to study hot paths to samples (Andi Kleen)
> 
> Kernel:
> 
> - Default UPROBES_EVENTS to Y (Alexei Starovoitov)
> 
> - Fix check for kretprobe offset within function entry (Naveen N. Rao)
> 
> Infrastructure:
> 
> - Introduce util func is_sdt_event() (Ravi Bangoria)
> 
> - Make perf_event__synthesize_mmap_events() scale on older kernels where
>   reading /proc/pid/maps is way slower than reading /proc/pid/task/pid/maps 
> (Stephane Eranian)
> 
> Signed-off-by: Arnaldo Carvalho de Melo 
> 
> 
> Andi Kleen (1):
>   perf script: Add 'brstackinsn' for branch stacks
> 
> Arnaldo Carvalho de Melo (2):
>   tools headers: Sync {tools/,}arch/x86/include/asm/cpufeatures.h
>   uprobes: Default UPROBES_EVENTS to Y
> 
> Naveen N. Rao (1):
>   trace/kprobes: Fix check for kretprobe offset within function entry
> 
> Ravi Bangoria (1):
>   perf probe: Introduce util func is_sdt_event()
> 
> Stephane Eranian (1):
>   perf tools: Make perf_event__synthesize_mmap_events() scale
> 
>  include/linux/kprobes.h|   1 +
>  kernel/kprobes.c   |  40 ++--
>  kernel/trace/Kconfig   |   2 +-
>  kernel/trace/trace_kprobe.c|   2 +-
>  tools/arch/x86/include/asm/cpufeatures.h   |   5 +-
>  tools/perf/Documentation/perf-script.txt   |  13 +-
>  tools/perf/builtin-script.c| 264 
> -
>  tools/perf/util/Build  |   1 +
>  tools/perf/util/dump-insn.c|  14 ++
>  tools/perf/util/dump-insn.h|  22 ++
>  tools/perf/util/event.c|   4 +-
>  .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |  24 ++
>  tools/perf/util/parse-events.h |  20 ++
>  tools/perf/util/probe-event.c  |   9 +-
>  14 files changed, 381 insertions(+), 40 deletions(-)
>  create mode 100644 tools/perf/util/dump-insn.c
>  create mode 100644 tools/perf/util/dump-insn.h

Pulled, thanks a lot Arnaldo!

Ingo

[GIT PULL 0/6] perf/core improvements and fixes

2017-03-16 Thread Arnaldo Carvalho de Melo 
Hi Ingo,

Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit ffa86c2f1a8862cf58c873f6f14d4b2c3250fb48:

  Merge tag 'perf-core-for-mingo-4.12-20170314' of 
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core 
(2017-03-15 19:27:27 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git 
tags/perf-core-for-mingo-4.12-20170316

for you to fetch changes up to 61f35d750683b21e9e3836e309195c79c1daed74:

  uprobes: Default UPROBES_EVENTS to Y (2017-03-16 12:42:02 -0300)


perf/core improvements and fixes:

New features:

- Add 'brstackinsn' field in 'perf script' to reuse the x86 instruction
  decoder used in the Intel PT code to study hot paths to samples (Andi Kleen)

Kernel:

- Default UPROBES_EVENTS to Y (Alexei Starovoitov)

- Fix check for kretprobe offset within function entry (Naveen N. Rao)

Infrastructure:

- Introduce util func is_sdt_event() (Ravi Bangoria)

- Make perf_event__synthesize_mmap_events() scale on older kernels where
  reading /proc/pid/maps is way slower than reading /proc/pid/task/pid/maps 
(Stephane Eranian)

Signed-off-by: Arnaldo Carvalho de Melo 


Andi Kleen (1):
  perf script: Add 'brstackinsn' for branch stacks

Arnaldo Carvalho de Melo (2):
  tools headers: Sync {tools/,}arch/x86/include/asm/cpufeatures.h
  uprobes: Default UPROBES_EVENTS to Y

Naveen N. Rao (1):
  trace/kprobes: Fix check for kretprobe offset within function entry

Ravi Bangoria (1):
  perf probe: Introduce util func is_sdt_event()

Stephane Eranian (1):
  perf tools: Make perf_event__synthesize_mmap_events() scale

 include/linux/kprobes.h|   1 +
 kernel/kprobes.c   |  40 ++--
 kernel/trace/Kconfig   |   2 +-
 kernel/trace/trace_kprobe.c|   2 +-
 tools/arch/x86/include/asm/cpufeatures.h   |   5 +-
 tools/perf/Documentation/perf-script.txt   |  13 +-
 tools/perf/builtin-script.c| 264 -
 tools/perf/util/Build  |   1 +
 tools/perf/util/dump-insn.c|  14 ++
 tools/perf/util/dump-insn.h|  22 ++
 tools/perf/util/event.c|   4 +-
 .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |  24 ++
 tools/perf/util/parse-events.h |  20 ++
 tools/perf/util/probe-event.c  |   9 +-
 14 files changed, 381 insertions(+), 40 deletions(-)
 create mode 100644 tools/perf/util/dump-insn.c
 create mode 100644 tools/perf/util/dump-insn.h

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:edge: Ok
   4 android-ndk:r12b-arm: Ok
   5 archlinux:latest: Ok
   6 centos:5: Ok
   7 centos:6: Ok
   8 centos:7: Ok
   9 debian:7: Ok
  10 debian:8: Ok
  11 debian:experimental: Ok
  12 debian:experimental-x-arm64: Ok
  13 debian:experimental-x-mips: Ok
  14 debian:experimental-x-mips64: Ok
  15 debian:experimental-x-mipsel: Ok
  16 fedora:20: Ok
  17 fedora:21: Ok
  18 fedora:22: Ok
  19 fedora:23: Ok
  20 fedora:24: Ok
  21 fedora:24-x-ARC-uClibc: Ok
  22 fedora:25: Ok
  23 fedora:rawhide: Ok
  24 mageia:5: Ok
  25 opensuse:13.2: Ok
  26 opensuse:42.1: Ok
  27 opensuse:tumbleweed: Ok
  28 ubuntu:12.04.5: Ok
  29 ubuntu:14.04.4: Ok
  30 ubuntu:14.04.4-x-linaro-arm64: Ok
  31 ubuntu:15.10: Ok
  32 ubuntu:16.04: Ok
  33 ubuntu:16.04-x-arm: Ok
  34 ubuntu:16.04-x-arm64: Ok
  35 ubuntu:16.04-x-powerpc: Ok
  36