linux

iv/linux

History

Ingo Molnar 2696ec4566 perf/core improvements and fixes:

perf stat:
 
 . Display user and system time for workload targets (Jiri Olsa)
 
 perf record:
 
 . Enable arbitrary event names thru name= modifier (Alexey Budankov)
 
 PowerPC:
 
 . Add a python script for hypervisor call statistics (Ravi Bangoria)
 
 Intel PT: (Adrian Hunter)
 
 . Fix sync_switch INTEL_PT_SS_NOT_TRACING
 
 . Fix decoding to accept CBR between FUP and corresponding TIP
 
 . Fix MTC timing after overflow
 
 . Fix "Unexpected indirect branch" error
 
 perf test:
 
 . record+probe_libc_inet_pton:
 
   .  To get the symbol table for dynamic
      shared objects on ubuntu we need to pass the -D/--dynamic command line
      option, unlike with the fedora distros (Arnaldo Carvalho de Melo)
 
 . code-reading:
 
   . Fix perf_env setup for PTI entry trampolines (Adrian Hunter)
 
 . kmod-path:
 
   . Add tests for vdso32 and vdsox32 (Adrian Hunter)
 
 . Use header file util/debug.h (Thomas Richter)
 
 perf annotate:
 
 . Make the various UI backends (stdio, TUI, gtk) use more consistently
   structs with annotation options as specified by the user (Arnaldo Carvalho de Melo)
 
 . Move annotation specific knobs from the symbol_conf global kitchen
   sink to the annotation option structs (Arnaldo Carvalho de Melo)
 
 perf script:
 
 . Add more PMU fields to python scripts event handler dict (Jin Yao)
 
 Core:
 
 . Fix misleading error for some unparsable events mentioning PMUs when
   those are not involved in the problem (Jiri Olsa)
 
 . Consider BSS symbols when processing /proc/kallsyms ('B' and 'b')
   (Arnaldo Carvalho de Melo)
 
 - Be more robust when trying to use per-symbol histograms, checking for
   unlikely but possible cases where the space for the histograms wasn't
   allocated, print a debug message for such cases (Arnaldo Carvalho de Melo)
 
 - Fix symbol and object code resolution for vdso32 and vdsox32 (Adrian Hunter)
 
 . No need to check for null when passing pointers to foo__get() style
   refcount grabbing helpers, just like in the kernel and with free(),
   its safe to pass a NULL pointer to avoid having to check it before
   each and every foo__get() call (Arnaldo Carvalho de Melo)
 
 . Remove some dead code (quote.[ch]) (Arnaldo Carvalho de Melo)
 
 . Remove some needless globals, making them local (Arnaldo Carvalho de Melo)
 
 . Reduce usage of symbol_conf.use_callchain, using other means of
   finding out if callchains are in use or available for specific events,
   as we evolved this codebase to allow requesting callchains for just
   a subset of the monitored events. In time it will help polish
   recording and showing mixed sets accross the various tools:
 
     perf record -e cycles/call-graph=fp/,cache-misses/call-graph=dwarf/,instructions'
 
   (Arnaldo Carvalho de Melo)
 
 . Consider PTI entry trampolines in map__rip_2objdump() (Adrian Hunter)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.18-20180606' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf stat:

 - Display user and system time for workload targets (Jiri Olsa)

perf record:

 - Enable arbitrary event names thru name= modifier (Alexey Budankov)

PowerPC:

 - Add a python script for hypervisor call statistics (Ravi Bangoria)

Intel PT: (Adrian Hunter)

 - Fix sync_switch INTEL_PT_SS_NOT_TRACING

 - Fix decoding to accept CBR between FUP and corresponding TIP

 - Fix MTC timing after overflow

 - Fix "Unexpected indirect branch" error

perf test:

 - record+probe_libc_inet_pton:

  -  To get the symbol table for dynamic
     shared objects on ubuntu we need to pass the -D/--dynamic command line
     option, unlike with the fedora distros (Arnaldo Carvalho de Melo)

 - code-reading:

  - Fix perf_env setup for PTI entry trampolines (Adrian Hunter)

 - kmod-path:

  - Add tests for vdso32 and vdsox32 (Adrian Hunter)

 - Use header file util/debug.h (Thomas Richter)

perf annotate:

 - Make the various UI backends (stdio, TUI, gtk) use more consistently
  structs with annotation options as specified by the user (Arnaldo Carvalho de Melo)

 - Move annotation specific knobs from the symbol_conf global kitchen
  sink to the annotation option structs (Arnaldo Carvalho de Melo)

perf script:

 - Add more PMU fields to python scripts event handler dict (Jin Yao)

Core:

 - Fix misleading error for some unparsable events mentioning PMUs when
  those are not involved in the problem (Jiri Olsa)

 - Consider BSS symbols when processing /proc/kallsyms ('B' and 'b')
  (Arnaldo Carvalho de Melo)

- Be more robust when trying to use per-symbol histograms, checking for
  unlikely but possible cases where the space for the histograms wasn't
  allocated, print a debug message for such cases (Arnaldo Carvalho de Melo)

- Fix symbol and object code resolution for vdso32 and vdsox32 (Adrian Hunter)

 - No need to check for null when passing pointers to foo__get() style
  refcount grabbing helpers, just like in the kernel and with free(),
  its safe to pass a NULL pointer to avoid having to check it before
  each and every foo__get() call (Arnaldo Carvalho de Melo)

 - Remove some dead code (quote.[ch]) (Arnaldo Carvalho de Melo)

 - Remove some needless globals, making them local (Arnaldo Carvalho de Melo)

 - Reduce usage of symbol_conf.use_callchain, using other means of
  finding out if callchains are in use or available for specific events,
  as we evolved this codebase to allow requesting callchains for just
  a subset of the monitored events. In time it will help polish
  recording and showing mixed sets accross the various tools:

    perf record -e cycles/call-graph=fp/,cache-misses/call-graph=dwarf/,instructions'

  (Arnaldo Carvalho de Melo)

 - Consider PTI entry trampolines in map__rip_2objdump() (Adrian Hunter)

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

2018-06-07 07:18:51 +02:00

accounting

…

arch

tools headers: Sync x86 cpufeatures.h with the kernel sources

2018-06-01 16:13:16 -03:00

bpf

bpf: fix uninitialized variable in bpf tools

2018-04-26 22:23:02 +02:00

build

Kbuild: fix # escaping in .cmd files for future Make

2018-04-11 00:03:02 +09:00