linux/tools/lib
Thomas Gleixner 4a98be8293 perf/core improvements and fixes:
kernel:
 
   Stephane Eranian :
 
   - Restore mmap record type correctly when handling PERF_RECORD_MMAP2
     events, as the same template is used for all the threads interested
     in mmap events, some may want just PERF_RECORD_MMAP, while some
     may want the extra info in MMAP2 records.
 
 perf probe:
 
   Adrian Hunter:
 
   - Fix getting the kernel map, because since changes related to x86 PTI
     entry trampolines handling, there are more than one kernel map.
 
 perf script:
 
   Andi Kleen:
 
   - Support insn output for normal samples, i.e.:
 
     perf script -F ip,sym,insn --xed
 
     Will fetch the sample IP from the thread address space and feed it
     to Intel's XED disassembler, producing lines such as:
 
       ffffffffa4068804 native_write_msr            wrmsr
       ffffffffa415b95e __hrtimer_next_event_base   movq  0x18(%rax), %rdx
 
     That match 'perf annotate's output.
 
   - Make the --cpu filter apply to  PERF_RECORD_COMM/FORK/... events, in
     addition to PERF_RECORD_SAMPLE.
 
 perf report:
 
   - Add a new --samples option to save a small random number of samples
     per hist entry, using a reservoir technique to select a representative
     number of samples.
 
     Then allow browsing the samples using 'perf script' as part of the hist
     entry context menu. This automatically adds the right filters, so only
     the thread or CPU of the sample is displayed. Then we use less' search
     functionality to directly jump to the time stamp of the selected sample.
 
     It uses different menus for assembler and source display.  Assembler
     needs xed installed and source needs debuginfo.
 
   - Fix the UI browser scripts pop up menu when there are many scripts
     available.
 
 perf report:
 
   Andi Kleen:
 
   - Add 'time' sort option. E.g.:
 
     % perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
     ...
          0.67%  277061.87300  [.] _dl_start
          0.50%  277061.87300  [.] f1
          0.50%  277061.87300  [.] f2
          0.33%  277061.87300  [.] main
          0.29%  277061.87300  [.] _dl_lookup_symbol_x
          0.29%  277061.87300  [.] dl_main
          0.29%  277061.87300  [.] do_lookup_x
          0.17%  277061.87300  [.] _dl_debug_initialize
          0.17%  277061.87300  [.] _dl_init_paths
          0.08%  277061.87300  [.] check_match
          0.04%  277061.87300  [.] _dl_count_modids
          1.33%  277061.87400  [.] f1
          1.33%  277061.87400  [.] f2
          1.33%  277061.87400  [.] main
          1.17%  277061.87500  [.] main
          1.08%  277061.87500  [.] f1
          1.08%  277061.87500  [.] f2
          1.00%  277061.87600  [.] main
          0.83%  277061.87600  [.] f1
          0.83%  277061.87600  [.] f2
          1.00%  277061.87700  [.] main
 
 tools headers:
 
   Arnaldo Carvalho de Melo:
 
   - Update x86's syscall_64.tbl, no change in tools/perf behaviour.
 
   -  Sync copies asm-generic/unistd.h and linux/in with the kernel sources.
 
 perf data:
 
   Jiri Olsa:
 
   - Prep work to support having perf.data stored as a directory, with one
     file per CPU, that ultimately will allow having one ring buffer reading
     thread per CPU.
 
 Vendor events:
 
   Martin Liška:
 
   - perf PMU events for AMD Family 17h.
 
 perf script python:
 
   Tony Jones:
 
   - Add python3 support for the remaining Intel PT related scripts, with
     these we should have a clean build of perf with python3 while still
     supporting the build with python2.
 
 libbpf:
 
   Arnaldo Carvalho de Melo:
 
   - Fix the build on uCLibc, adding the missing stdarg.h since we use
     va_list in one typedef.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.1-20190311' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo:

kernel:

  Stephane Eranian :

  - Restore mmap record type correctly when handling PERF_RECORD_MMAP2
    events, as the same template is used for all the threads interested
    in mmap events, some may want just PERF_RECORD_MMAP, while some
    may want the extra info in MMAP2 records.

perf probe:

  Adrian Hunter:

  - Fix getting the kernel map, because since changes related to x86 PTI
    entry trampolines handling, there are more than one kernel map.

perf script:

  Andi Kleen:

  - Support insn output for normal samples, i.e.:

    perf script -F ip,sym,insn --xed

    Will fetch the sample IP from the thread address space and feed it
    to Intel's XED disassembler, producing lines such as:

      ffffffffa4068804 native_write_msr            wrmsr
      ffffffffa415b95e __hrtimer_next_event_base   movq  0x18(%rax), %rdx

    That match 'perf annotate's output.

  - Make the --cpu filter apply to  PERF_RECORD_COMM/FORK/... events, in
    addition to PERF_RECORD_SAMPLE.

perf report:

  - Add a new --samples option to save a small random number of samples
    per hist entry, using a reservoir technique to select a representative
    number of samples.

    Then allow browsing the samples using 'perf script' as part of the hist
    entry context menu. This automatically adds the right filters, so only
    the thread or CPU of the sample is displayed. Then we use less' search
    functionality to directly jump to the time stamp of the selected sample.

    It uses different menus for assembler and source display.  Assembler
    needs xed installed and source needs debuginfo.

  - Fix the UI browser scripts pop up menu when there are many scripts
    available.

perf report:

  Andi Kleen:

  - Add 'time' sort option. E.g.:

    % perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
    ...
         0.67%  277061.87300  [.] _dl_start
         0.50%  277061.87300  [.] f1
         0.50%  277061.87300  [.] f2
         0.33%  277061.87300  [.] main
         0.29%  277061.87300  [.] _dl_lookup_symbol_x
         0.29%  277061.87300  [.] dl_main
         0.29%  277061.87300  [.] do_lookup_x
         0.17%  277061.87300  [.] _dl_debug_initialize
         0.17%  277061.87300  [.] _dl_init_paths
         0.08%  277061.87300  [.] check_match
         0.04%  277061.87300  [.] _dl_count_modids
         1.33%  277061.87400  [.] f1
         1.33%  277061.87400  [.] f2
         1.33%  277061.87400  [.] main
         1.17%  277061.87500  [.] main
         1.08%  277061.87500  [.] f1
         1.08%  277061.87500  [.] f2
         1.00%  277061.87600  [.] main
         0.83%  277061.87600  [.] f1
         0.83%  277061.87600  [.] f2
         1.00%  277061.87700  [.] main

tools headers:

  Arnaldo Carvalho de Melo:

  - Update x86's syscall_64.tbl, no change in tools/perf behaviour.

  -  Sync copies asm-generic/unistd.h and linux/in with the kernel sources.

perf data:

  Jiri Olsa:

  - Prep work to support having perf.data stored as a directory, with one
    file per CPU, that ultimately will allow having one ring buffer reading
    thread per CPU.

Vendor events:

  Martin Liška:

  - perf PMU events for AMD Family 17h.

perf script python:

  Tony Jones:

  - Add python3 support for the remaining Intel PT related scripts, with
    these we should have a clean build of perf with python3 while still
    supporting the build with python2.

libbpf:

  Arnaldo Carvalho de Melo:

  - Fix the build on uCLibc, adding the missing stdarg.h since we use
    va_list in one typedef.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-03-22 22:50:41 +01:00
..
api perf tools: Fix tracing_path_mount proper path 2018-10-16 12:27:46 -03:00
bpf perf/core improvements and fixes: 2019-03-22 22:50:41 +01:00
lockdep lockdep/lib/tests: Test dynamic key registration 2019-02-28 07:55:48 +01:00
subcmd tools lib subcmd: Don't add the kernel sources to the include path 2018-12-18 12:23:56 -03:00
symbol tools lib symbols: Introduce kallsyms__is_function() 2018-04-26 13:47:14 -03:00
traceevent tools lib traceevent: Fix buffer overflow in arg_eval 2019-02-28 16:06:47 -03:00
bitmap.c tools lib: Add bitmap_and function 2016-08-02 16:33:27 -03:00
find_bit.c lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
hweight.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rbtree.c tools: Update rbtree implementation 2019-01-25 15:12:09 +01:00
str_error_r.c objtool, perf: Fix GCC 8 -Wrestrict error 2018-03-19 13:51:54 -03:00
string.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vsprintf.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00