Jin Yao ace4f8faea perf annotate: Compute average IPC and IPC coverage per symbol ...

Add support to 'perf report' annotate view or 'perf annotate --stdio2'
to aggregate the IPC derived from timed LBRs per symbol. We compute the
average IPC and the IPC coverage percentage.

For example:

  $ perf annotate --stdio2

  Percent  IPC Cycle (Average IPC: 2.30, IPC Coverage: 54.8%)

                          Disassembly of section .text:

                          000000000003aac0 <random@@GLIBC_2.2.5>:
    8.32  3.28              sub    $0x18,%rsp
          3.28              mov    $0x1,%esi
          3.28              xor    %eax,%eax
          3.28              cmpl   $0x0,argp_program_version_hook@@GLIBC_2.2.5+0x1e0
   11.57  3.28     1      ↓ je     20
                            lock   cmpxchg %esi,__abort_msg@@GLIBC_PRIVATE+0x8a0
                          ↓ jne    29
                          ↓ jmp    43
   11.57  1.10        20:   cmpxchg %esi,__abort_msg@@GLIBC_PRIVATE+0x8a0
    0.00  1.10     1      ↓ je     43
                      29:   lea    __abort_msg@@GLIBC_PRIVATE+0x8a0,%rdi
                            sub    $0x80,%rsp
                          → callq  __lll_lock_wait_private
                            add    $0x80,%rsp
    0.00  3.00        43:   lea    __ctype_b@GLIBC_2.2.5+0x38,%rdi
          3.00              lea    0xc(%rsp),%rsi
    8.49  3.00     1      → callq  __random_r
    7.91  1.94              cmpl   $0x0,argp_program_version_hook@@GLIBC_2.2.5+0x1e0
    0.00  1.94     1      ↓ je     68
                            lock   decl   __abort_msg@@GLIBC_PRIVATE+0x8a0
                          ↓ jne    70
                          ↓ jmp    8a
    0.00  2.00        68:   decl   __abort_msg@@GLIBC_PRIVATE+0x8a0
   21.56  2.00     1      ↓ je     8a
                      70:   lea    __abort_msg@@GLIBC_PRIVATE+0x8a0,%rdi
                            sub    $0x80,%rsp
                          → callq  __lll_unlock_wake_private
                            add    $0x80,%rsp
   21.56  2.90        8a:   movslq 0xc(%rsp),%rax
          2.90              add    $0x18,%rsp
    9.03  2.90     1      ← retq

It shows for this symbol the average IPC is 2.30 and the IPC coverage is
54.8%.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1543586097-27632-2-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2018-12-17 14:55:32 -03:00

..

arch

perf intel-pt: Fix error with config term "pt=0"

2018-12-17 14:54:51 -03:00

bench

perf bench: Add epoll_ctl(2) benchmark

2018-11-21 22:39:55 -03:00

Documentation

perf record: Extend trace writing to multi AIO

2018-12-17 14:55:11 -03:00

examples/bpf

Revert "perf augmented_syscalls: Drop 'write', 'poll' for testing without self pid filter"

2018-11-21 12:00:31 -03:00

include/bpf

perf bpf: Reduce the hardcoded .max_entries for pid_maps

2018-11-21 12:00:32 -03:00

jvmti

perf jvmti: Separate jvmti cmlr check

2018-11-21 22:39:58 -03:00

pmu-events

perf vendor events: Add JSON metrics for Cascadelake server

2018-11-21 22:39:58 -03:00

python

perf python: Make twatch.py work with both python2 and python3

2018-02-19 12:28:08 -03:00

scripts

perf scripts python: exported-sql-viewer.py: Fix table find when table re-ordered

2018-11-05 14:53:00 -03:00

tests

perf test: Fix perf_event_attr test failure

2018-12-17 14:54:32 -03:00

trace

perf beauty mmap_flags: Check if the arch has a mmap.h file

2018-12-17 14:55:14 -03:00

ui

perf annotate: Add support to toggle percent type

2018-08-08 15:55:52 -03:00

util

perf annotate: Compute average IPC and IPC coverage per symbol

2018-12-17 14:55:32 -03:00

.gitignore

perf tools: Add trace/beauty/generated/ into .gitignore

2018-02-05 13:58:02 -03:00

Build

perf trace: Remove audit-libs dependency if syscall tables are present

2018-01-23 09:51:38 -03:00

builtin-annotate.c

perf tools: Remove perf_tool from event_op2

2018-09-19 10:25:10 -03:00

builtin-bench.c

perf bench: Add epoll_ctl(2) benchmark

2018-11-21 22:39:55 -03:00

builtin-buildid-cache.c

perf buildid-cache: Warn --purge-all failures

2018-05-15 10:32:16 -03:00

builtin-buildid-list.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-c2c.c

perf c2c report: Fix crash for empty browser

2018-07-31 10:53:20 -03:00

builtin-config.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-data.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

builtin-diff.c

perf hists: Clarify callchain disabling when available

2018-07-24 14:37:33 -03:00

builtin-evlist.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-ftrace.c

perf ftrace: Append an EOL when write tracing files

2018-02-19 09:49:12 -03:00

builtin-help.c

perf tools: Rename HAVE_SYSCALL_TABLE to HAVE_SYSCALL_TABLE_SUPPORT

2018-04-12 10:33:31 -03:00

builtin-inject.c

perf tools: Report itrace options in help

2018-09-19 15:06:59 -03:00

builtin-kallsyms.c

perf machine: Ditch find_kernel_function variants

2018-04-30 12:20:54 -03:00

builtin-kmem.c

tools lib traceevent, perf tools: Rename 'enum pevent_flag' to 'enum tep_flag'

2018-08-13 15:22:18 -03:00

builtin-kvm.c

perf tools: Ditch the symbol_conf.nr_events global

2018-06-04 10:28:52 -03:00

builtin-list.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-lock.c

Merge branch 'linus' into perf/core, to fix conflicts

2017-11-07 10:30:18 +01:00

builtin-mem.c

perf mem: Allow all record/report options

2018-04-18 15:35:48 -03:00

builtin-probe.c

perf tools: No need to check if the argument to __get() function is NULL

2018-06-04 10:28:50 -03:00

builtin-record.c

perf record: Extend trace writing to multi AIO

2018-12-17 14:55:11 -03:00

builtin-report.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-10-23 13:32:18 +01:00

builtin-sched.c

perf sched: Use sched->show_callchain where appropriate

2018-06-05 10:09:54 -03:00

builtin-script.c

perf script: Use fallbacks for branch stacks

2018-12-17 14:54:18 -03:00

builtin-stat.c

perf evlist: Move perf_evsel__reset_weak_group into evlist

2018-11-05 14:37:09 -03:00

builtin-timechart.c

perf thread: Make thread__find_symbol() return the symbol searched

2018-04-26 13:47:09 -03:00

builtin-top.c

perf top: Allow passing a kallsyms file

2018-12-17 14:54:40 -03:00

builtin-trace.c

perf trace: Fill in BPF "filtered_pids" map when present

2018-11-21 12:00:31 -03:00

builtin-version.c

perf version: Print status for syscall_table

2018-04-12 10:33:34 -03:00

builtin.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

check-headers.sh

tools include uapi: Grab a copy of linux/fs.h

2018-10-30 11:46:22 -03:00

command-list.txt

perf help: Add missing subcommand version

2018-09-19 14:53:36 -03:00

CREDITS

…

design.txt

perf tools: Update some code references in design.txt

2014-03-18 18:17:06 -03:00

Makefile

perf tools: Disable parallelism for 'make clean'

2018-08-20 08:54:58 -03:00

Makefile.config

tools build feature: Check if libaio is available

2018-12-17 14:54:54 -03:00

Makefile.perf

perf beauty mmap_flags: Check if the arch has a mmap.h file

2018-12-17 14:55:14 -03:00

MANIFEST

perf tools: Get all of tools/{arch,include}/ in the MANIFEST

2017-09-25 10:39:43 -03:00

perf-archive.sh

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf-completion.sh

perf tools: Auto-complete for events with ':'

2017-12-27 12:16:00 -03:00

perf-read-vdso.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf-sys.h

Drop a bunch of metag references

2018-02-23 14:29:59 +00:00

perf-with-kcore.sh

perf tools: Fix perf-with-kcore handling of arguments containing spaces

2015-08-06 16:48:27 -03:00

perf.c

perf tools: Remove dead quote.[ch] code

2018-06-04 10:28:50 -03:00

perf.h

perf record: Enable asynchronous trace writing

2018-12-17 14:55:08 -03:00