Re: [GIT PULL 00/41] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo  wrote:

> Hi Ingo,
> 
>   Please consider pulling, this is on top of tip/perf/urgent.
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 297f9233b53a08fd457815e19f1d6f2c3389857b:
> 
>   kprobes: Propagate error from disarm_kprobe_ftrace() (2018-02-16 09:12:58 
> +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-4.17-20180216
> 
> for you to fetch changes up to 21316ac6803d4a1aadd74b896db8d60a92cd1140:
> 
>   perf tests shell lib: Use a wildcard to remove the vfs_getname probe 
> (2018-02-16 15:31:12 -0300)
> 
> 
> perf/core improvements and fixes:
> 
> - Fix wrong jump arrow in systems with branch records with cycles,
>   i.e. Intel's >= Skylake (Jin Yao)
> 
> - Fix 'perf record --per-thread' problem introduced when
>   implementing 'perf stat --per-thread (Jin Yao)
> 
> - Use arch__compare_symbol_names() to fix 'perf test vmlinux',
>   that was using strcmp(symbol names) while the dso routines
>   doing symbol lookups used the arch overridable one, making
>   this test fail in architectures that overrided that function
>   with something other than strcmp() (Jiri Olsa)
> 
> - Add 'perf script --show-round-event' to display
>   PERF_RECORD_FINISHED_ROUND entries (Jiri Olsa)
> 
> - Fix dwarf unwind for stripped binaries in 'perf test' (Jiri Olsa)
> 
> - Use ordered_events for 'perf report --tasks', otherwise we may get
>   artifacts when PERF_RECORD_FORK gets processed before PERF_RECORD_COMM
>   (when they got recorded in different CPUs) (Jiri Olsa)
> 
> - Add support to display group output for non group events, i.e.
>   now when one uses 'perf report --group' on a perf.data file
>   recorded without explicitly grouping events with {} (e.g.
>   "perf record -e '{cycles,instructions}'" get the same output
>   that would produce, i.e. see all those non-grouped events in
>   multiple columns, at the same time (Jiri Olsa)
> 
> - Skip non-address kallsyms entries, e.g. '(null)' for !root (Jiri Olsa)
> 
> - Kernel maps fixes wrt perf.data(report) versus live system (top)
>   (Jiri Olsa)
> 
> - Fix memory corruption when using 'perf record -j call -g -a '
>   followed by 'perf report --branch-history' (Jiri Olsa)
> 
> - ARM CoreSight fixes (Mathieu Poirier)
> 
> - Add inject capability for CoreSight Traces (Robert Waker)
> 
> - Update documentation for use of 'perf' + ARM CoreSight (Robert Walker)
> 
> - Man pages fixes (Sangwon Hong, Jaecheol Shin)
> 
> - Fix some 'perf test' cases on s/390 and x86_64 (some backtraces
>   changed with a glibc update) (Thomas Richter)
> 
> - Add detailed CPUID info in the 'perf.data' headers for s/390 to
>   then use it in 'perf annotate' (Thomas Richter)
> 
> - Add '--interval-count N' to 'perf stat', to use with -I, i.e.
>   'perf stat -I 1000 --interval-count 2' will show stats every
>1000ms, two times (yuzhoujian)
> 
> - Add 'perf stat --timeout Nms', that will run for that many
>   milliseconds and then stop, printing the counters (yuzhoujian)
> 
> - Fix description for 'perf report --mem-modex (Andi Kleen)
> 
> - Use a wildcard to remove the vfs_getname probe in the
>   'perf test' shell based test cases (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo 
> 
> 
> Andi Kleen (1):
>   perf report: Fix description for --mem-mode
> 
> Arnaldo Carvalho de Melo (1):
>   perf tests shell lib: Use a wildcard to remove the vfs_getname probe
> 
> Jaecheol Shin (1):
>   perf annotate: Add missing arguments in Man page
> 
> Jin Yao (2):
>   perf tools: Use target->per_thread and target->system_wide flags
>   perf report: Fix wrong jump arrow
> 
> Jiri Olsa (18):
>   perf record: Put new line after target override warning
>   perf script: Add --show-round-event to display 
> PERF_RECORD_FINISHED_ROUND
>   tools lib api fs: Add filename__read_xll function
>   tools lib api fs: Add sysfs__read_xll function
>   perf tests: Fix dwarf unwind for stripped binaries
>   perf tools: Fix comment for sort__* compare functions
>   perf report: Ask for ordered events for --tasks option
>   perf report: Add support to display group output for non group events
>   tools lib symbol: Skip non-address kallsyms line
>   perf symbols: Check if we read regular file in dso__load()
>   perf machine: Free root_dir in machine__init() error path
>   perf machine: Move kernel mmap name into struct machine
>   perf machine: Generalize machine__set_kernel_mmap()
>   perf machine: Don't search for active kernel start in 
> __machine__create_kernel_maps
>   perf machine: Remove machine__load_kallsyms()
>   perf tools: Do not create kernel maps in 

[GIT PULL 00/41] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

Please consider pulling, this is on top of tip/perf/urgent.

- Arnaldo

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

The following changes since commit 297f9233b53a08fd457815e19f1d6f2c3389857b:

  kprobes: Propagate error from disarm_kprobe_ftrace() (2018-02-16 09:12:58 
+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-4.17-20180216

for you to fetch changes up to 21316ac6803d4a1aadd74b896db8d60a92cd1140:

  perf tests shell lib: Use a wildcard to remove the vfs_getname probe 
(2018-02-16 15:31:12 -0300)


perf/core improvements and fixes:

- Fix wrong jump arrow in systems with branch records with cycles,
  i.e. Intel's >= Skylake (Jin Yao)

- Fix 'perf record --per-thread' problem introduced when
  implementing 'perf stat --per-thread (Jin Yao)

- Use arch__compare_symbol_names() to fix 'perf test vmlinux',
  that was using strcmp(symbol names) while the dso routines
  doing symbol lookups used the arch overridable one, making
  this test fail in architectures that overrided that function
  with something other than strcmp() (Jiri Olsa)

- Add 'perf script --show-round-event' to display
  PERF_RECORD_FINISHED_ROUND entries (Jiri Olsa)

- Fix dwarf unwind for stripped binaries in 'perf test' (Jiri Olsa)

- Use ordered_events for 'perf report --tasks', otherwise we may get
  artifacts when PERF_RECORD_FORK gets processed before PERF_RECORD_COMM
  (when they got recorded in different CPUs) (Jiri Olsa)

- Add support to display group output for non group events, i.e.
  now when one uses 'perf report --group' on a perf.data file
  recorded without explicitly grouping events with {} (e.g.
  "perf record -e '{cycles,instructions}'" get the same output
  that would produce, i.e. see all those non-grouped events in
  multiple columns, at the same time (Jiri Olsa)

- Skip non-address kallsyms entries, e.g. '(null)' for !root (Jiri Olsa)

- Kernel maps fixes wrt perf.data(report) versus live system (top)
  (Jiri Olsa)

- Fix memory corruption when using 'perf record -j call -g -a '
  followed by 'perf report --branch-history' (Jiri Olsa)

- ARM CoreSight fixes (Mathieu Poirier)

- Add inject capability for CoreSight Traces (Robert Waker)

- Update documentation for use of 'perf' + ARM CoreSight (Robert Walker)

- Man pages fixes (Sangwon Hong, Jaecheol Shin)

- Fix some 'perf test' cases on s/390 and x86_64 (some backtraces
  changed with a glibc update) (Thomas Richter)

- Add detailed CPUID info in the 'perf.data' headers for s/390 to
  then use it in 'perf annotate' (Thomas Richter)

- Add '--interval-count N' to 'perf stat', to use with -I, i.e.
  'perf stat -I 1000 --interval-count 2' will show stats every
   1000ms, two times (yuzhoujian)

- Add 'perf stat --timeout Nms', that will run for that many
  milliseconds and then stop, printing the counters (yuzhoujian)

- Fix description for 'perf report --mem-modex (Andi Kleen)

- Use a wildcard to remove the vfs_getname probe in the
  'perf test' shell based test cases (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo 


Andi Kleen (1):
  perf report: Fix description for --mem-mode

Arnaldo Carvalho de Melo (1):
  perf tests shell lib: Use a wildcard to remove the vfs_getname probe

Jaecheol Shin (1):
  perf annotate: Add missing arguments in Man page

Jin Yao (2):
  perf tools: Use target->per_thread and target->system_wide flags
  perf report: Fix wrong jump arrow

Jiri Olsa (18):
  perf record: Put new line after target override warning
  perf script: Add --show-round-event to display PERF_RECORD_FINISHED_ROUND
  tools lib api fs: Add filename__read_xll function
  tools lib api fs: Add sysfs__read_xll function
  perf tests: Fix dwarf unwind for stripped binaries
  perf tools: Fix comment for sort__* compare functions
  perf report: Ask for ordered events for --tasks option
  perf report: Add support to display group output for non group events
  tools lib symbol: Skip non-address kallsyms line
  perf symbols: Check if we read regular file in dso__load()
  perf machine: Free root_dir in machine__init() error path
  perf machine: Move kernel mmap name into struct machine
  perf machine: Generalize machine__set_kernel_mmap()
  perf machine: Don't search for active kernel start in 
__machine__create_kernel_maps
  perf machine: Remove machine__load_kallsyms()
  perf tools: Do not create kernel maps in sample__resolve()
  perf tests: Use arch__compare_symbol_names to compare symbols
  perf report: Fix memory corruption in --branch-history mode 
--branch-history

Mathieu Poirier (3):
  perf cs-etm: Freeing allocated memory
  perf auxtrace arm: Fixing uninitialised variable
  perf cs-etm: