Re: [GIT PULL 00/30] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> 
> 
> The following changes since commit cb307113746b4d184155d2c412e8069aeaa60d42:
> 
>   perf_event: Don't allow vmalloc() backed perf on powerpc (2015-05-08 12:26:01 +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
> 
> for you to fetch changes up to 76d408498b08447e0f61dfdd611aeb6e8e61ce80:
> 
>   perf build: Disable libdw DWARF unwind when built with NO_DWARF (2015-05-08 16:43:14 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - 'perf probe' improvements (Masami Hiramatsu)
> 
>   - Support glob wildcards for function name
>   - Support $params special probe argument: Collect all function arguments
>   - Make --line checks validate C-style function name.
>   - Add --no-inlines option to avoid searching inline functions
> 
> - Introduce new 'perf bench futex' benchmark: 'wake-parallel', to
>   measure parallel waker threads generating contention for kerne
>   locks (hb->lock) (Davidlohr Bueso)
> 
> Bug fixes:
> 
> - 'perf top' survives much longer on high core count machines, more work
>   needed to refcount more data structures besides 'struct thread' and fix
>   more races (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Move barrier.h mb/rmb/wmb API from tools/perf/ to kernel like tools/arch/
>   hierarchy (Arnaldo Carvalho de Melo)
> 
> - Borrow atomic.h from the kernel, initially the x86 implementations
>   with a fallback to gcc intrinsics for the other arches, all the kernel
>   like framework in place for doing arch specific implementations,
>   preferrably cloning what is in the kernel to the greater extent
>   possible (Arnaldo Carvalho de Melo)
> 
> - Protect the 'struct thread' lifetime with a reference counter,
>   and protect data structures that contains its instances with
>   a mutex (Arnaldo Carvalho de Melo
> 
> - Disable libdw DWARF unwind when built with NO_DWARF (Naveen N. Rao)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (17):
>       perf tools: Move x86 barrier.h stuff to tools/arch/x86/include/asm/barrier.h
>       perf tools: Move powerpc barrier.h stuff to tools/arch/powerpc/include/asm/barrier.h
>       perf tools: Move s390 barrier.h stuff to tools/arch/s390/include/asm/barrier.h
>       perf tools: Move barrier() definition to tools/include/linux/compiler.h
>       tools: Adopt asm-generic/barrier.h
>       perf tools: Move sh barrier.h stuff to tools/arch/sh/include/asm/barrier.h
>       perf tools: Move sparc barrier.h stuff to tools/arch/sparc/include/asm/barrier.h
>       perf tools: Move alpha barrier.h stuff to tools/arch/alpha/include/asm/barrier.h
>       perf tools: Move ia64 barrier.h stuff to tools/arch/ia64/include/asm/barrier.h
>       perf tools: Move arm(64) barrier.h stuff to tools/arch/arm*/include/asm/barrier.h
>       perf tools: Move xtensa barrier.h stuff to tools/arch/xtensa/include/asm/barrier.h
>       perf tools: Move mips barrier.h stuff to tools/arch/mips/include/asm/barrier.h
>       perf tools: Move tile barrier.h stuff to tools/arch/tile/include/asm/barrier.h
>       perf tools: Move generic barriers out of perf-sys.h
>       tools include: Add basic atomic.h implementation from the kernel sources
>       perf tools: Use atomic_t to implement thread__{get,put} refcnt
>       perf machine: Protect the machine->threads with a rwlock
> 
> Davidlohr Bueso (2):
>       perf bench futex: Support parallel waker threads
>       perf bench futex: Handle spurious wakeups
> 
> Masami Hiramatsu (10):
>       perf probe: Fix to close probe_events file in error
>       perf probe: Fix a typo for the flags of open
>       perf probe: Fix to return 0 when positive value returned
>       perf probe: Make --line checks validate C-style function name
>       perf probe: Skip kernel symbols which is out of .text
>       perf probe: Support $params special probe argument
>       perf probe: Use perf_probe_event.target instead of passing as an argument
>       perf probe: Introduce probe_conf global configs
>       perf probe: Add --no-inlines option to avoid searching inline functions
>       perf probe: Support glob wildcards for function name
> 
> Naveen N. Rao (1):
>       perf build: Disable libdw DWARF unwind when built with NO_DWARF
> 
>  tools/arch/alpha/include/asm/barrier.h    |   8 +
>  tools/arch/arm/include/asm/barrier.h      |  12 ++
>  tools/arch/arm64/include/asm/barrier.h    |  16 ++
>  tools/arch/ia64/include/asm/barrier.h     |  48 +++++
>  tools/arch/mips/include/asm/barrier.h     |  20 ++
>  tools/arch/powerpc/include/asm/barrier.h  |  29 +++
>  tools/arch/s390/include/asm/barrier.h     |  30 +++
>  tools/arch/sh/include/asm/barrier.h       |  32 ++++
>  tools/arch/sparc/include/asm/barrier.h    |   8 +
>  tools/arch/sparc/include/asm/barrier_32.h |   6 +
>  tools/arch/sparc/include/asm/barrier_64.h |  42 +++++
>  tools/arch/tile/include/asm/barrier.h     |  15 ++
>  tools/arch/x86/include/asm/atomic.h       |  65 +++++++
>  tools/arch/x86/include/asm/barrier.h      |  28 +++
>  tools/arch/x86/include/asm/rmwcc.h        |  41 +++++
>  tools/arch/xtensa/include/asm/barrier.h   |  18 ++
>  tools/include/asm-generic/atomic-gcc.h    |  63 +++++++
>  tools/include/asm-generic/barrier.h       |  44 +++++
>  tools/include/asm/atomic.h                |  10 +
>  tools/include/asm/barrier.h               |  27 +++
>  tools/include/linux/atomic.h              |   6 +
>  tools/include/linux/compiler.h            |   4 +
>  tools/include/linux/types.h               |   4 +
>  tools/perf/Documentation/perf-bench.txt   |   3 +
>  tools/perf/Documentation/perf-probe.txt   |   6 +-
>  tools/perf/MANIFEST                       |  19 ++
>  tools/perf/bench/Build                    |   1 +
>  tools/perf/bench/bench.h                  |   2 +
>  tools/perf/bench/futex-wake-parallel.c    | 294 ++++++++++++++++++++++++++++++
>  tools/perf/bench/futex-wake.c             |   7 +-
>  tools/perf/builtin-annotate.c             |  10 +-
>  tools/perf/builtin-bench.c                |   1 +
>  tools/perf/builtin-diff.c                 |   9 +-
>  tools/perf/builtin-inject.c               |   1 +
>  tools/perf/builtin-kmem.c                 |   7 +-
>  tools/perf/builtin-kvm.c                  |   6 +-
>  tools/perf/builtin-lock.c                 |   8 +-
>  tools/perf/builtin-mem.c                  |   5 +-
>  tools/perf/builtin-probe.c                |  26 +--
>  tools/perf/builtin-report.c               |   9 +-
>  tools/perf/builtin-sched.c                |  82 ++++++---
>  tools/perf/builtin-script.c               |  20 +-
>  tools/perf/builtin-timechart.c            |   5 +-
>  tools/perf/builtin-top.c                  |   2 +-
>  tools/perf/builtin-trace.c                |  36 ++--
>  tools/perf/config/Makefile                |   4 +
>  tools/perf/perf-sys.h                     |  73 +-------
>  tools/perf/tests/code-reading.c           |  22 ++-
>  tools/perf/tests/dwarf-unwind.c           |   1 +
>  tools/perf/tests/hists_common.c           |   1 +
>  tools/perf/tests/hists_cumulate.c         |   4 +-
>  tools/perf/tests/hists_filter.c           |   4 +-
>  tools/perf/tests/hists_link.c             |   8 +-
>  tools/perf/tests/hists_output.c           |   4 +-
>  tools/perf/tests/mmap-thread-lookup.c     |   2 +
>  tools/perf/tests/thread-mg-share.c        |  12 +-
>  tools/perf/util/build-id.c                |   5 +-
>  tools/perf/util/db-export.c               |  14 +-
>  tools/perf/util/dwarf-aux.c               |  16 ++
>  tools/perf/util/dwarf-aux.h               |   3 +
>  tools/perf/util/event.c                   |  15 ++
>  tools/perf/util/event.h                   |   2 +
>  tools/perf/util/machine.c                 |  89 +++++++--
>  tools/perf/util/machine.h                 |   5 +-
>  tools/perf/util/probe-event.c             | 177 ++++++++++--------
>  tools/perf/util/probe-event.h             |  15 +-
>  tools/perf/util/probe-finder.c            |  73 +++++---
>  tools/perf/util/probe-finder.h            |  10 +-
>  tools/perf/util/thread.c                  |  14 +-
>  tools/perf/util/thread.h                  |   3 +-
>  tools/perf/util/util.h                    |   4 +
>  71 files changed, 1392 insertions(+), 323 deletions(-)
>  create mode 100644 tools/arch/alpha/include/asm/barrier.h
>  create mode 100644 tools/arch/arm/include/asm/barrier.h
>  create mode 100644 tools/arch/arm64/include/asm/barrier.h
>  create mode 100644 tools/arch/ia64/include/asm/barrier.h
>  create mode 100644 tools/arch/mips/include/asm/barrier.h
>  create mode 100644 tools/arch/powerpc/include/asm/barrier.h
>  create mode 100644 tools/arch/s390/include/asm/barrier.h
>  create mode 100644 tools/arch/sh/include/asm/barrier.h
>  create mode 100644 tools/arch/sparc/include/asm/barrier.h
>  create mode 100644 tools/arch/sparc/include/asm/barrier_32.h
>  create mode 100644 tools/arch/sparc/include/asm/barrier_64.h
>  create mode 100644 tools/arch/tile/include/asm/barrier.h
>  create mode 100644 tools/arch/x86/include/asm/atomic.h
>  create mode 100644 tools/arch/x86/include/asm/barrier.h
>  create mode 100644 tools/arch/x86/include/asm/rmwcc.h
>  create mode 100644 tools/arch/xtensa/include/asm/barrier.h
>  create mode 100644 tools/include/asm-generic/atomic-gcc.h
>  create mode 100644 tools/include/asm-generic/barrier.h
>  create mode 100644 tools/include/asm/atomic.h
>  create mode 100644 tools/include/asm/barrier.h
>  create mode 100644 tools/include/linux/atomic.h
>  create mode 100644 tools/perf/bench/futex-wake-parallel.c

Pulled, thanks a lot Arnaldo!

	Ingo

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