linux

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Ingo Molnar fcc309e618 perf/core improvements and fixes:

New features:
 
 - Beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo)
 
     e.g.:
 
   System wide strace like session:
 
   # trace -e statx
    16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0
    36050.891 ( 0.007 ms): statx/4576 statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0
   ^C#
 
 User visible:
 
 - Handle unpaired raw_syscalls:sys_exit events in 'perf trace', i.e. we
   shouldn't try to calculate duration or print the timestamp for a missing
   matching raw_syscalls:sys_enter (Arnaldo Carvalho de Melo)
 
 - Do not print "cycles: 0" in perf report LBR lines in platforms not
   supporting 'cycles', such as Intel's Broadwell (Jin Yao)
 
 - Handle missing $HOME env var (Jiri Olsa)
 
 - Map 8-bit registers (al, bl, etc), not supported in uprobes_events, to
   the next best thing (ax, bx, etc) supported (Ravi Bangoria)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.12-20170331' 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 features:

- Beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo)

    e.g.:

  System wide strace like session:

  # trace -e statx
   16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0
   36050.891 ( 0.007 ms): statx/4576 statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0
  ^C#

User visible changes:

- Handle unpaired raw_syscalls:sys_exit events in 'perf trace', i.e. we
  shouldn't try to calculate duration or print the timestamp for a missing
  matching raw_syscalls:sys_enter (Arnaldo Carvalho de Melo)

- Do not print "cycles: 0" in perf report LBR lines in platforms not
  supporting 'cycles', such as Intel's Broadwell (Jin Yao)

- Handle missing $HOME env var (Jiri Olsa)

- Map 8-bit registers (al, bl, etc), not supported in uprobes_events, to
  the next best thing (ax, bx, etc) supported (Ravi Bangoria)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2017-04-01 12:43:40 +02:00

accounting

tools: move accounting tool from Documentation

2016-09-23 13:07:15 -06:00

arch

tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h

2017-03-20 15:02:29 -03:00

build

tools build: Use the same CC for feature detection and actual build

2017-03-03 19:07:19 -03:00

cgroup

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