Add supporting of displaying the average IPC and IPC coverage
percentage per function.
For example,
$ perf record -g -b ...
$ perf report -s symbol,ipc
Overhead Symbol IPC [IPC Coverage]
39.60% [.] __random 2.30 [ 54.8%]
18.02% [.] main 0.43 [ 54.3%]
14.21% [.] compute_flag 2.29 [100.0%]
14.16% [.] rand 0.36 [100.0%]
7.06% [.] __random_r 2.57 [ 70.5%]
6.85% [.] rand@plt 0.00 [ 0.0%]
...
$ 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
...
Jin Yao (2):
perf annotate: Compute average IPC and IPC coverage per symbol
perf report: Display average IPC and IPC coverage per symbol
tools/perf/Documentation/perf-report.txt | 1 +
tools/perf/builtin-report.c | 11 ++++++++
tools/perf/util/annotate.c | 41 +++++++++++++++++++++++++++---
tools/perf/util/annotate.h | 5 ++++
tools/perf/util/hist.h | 1 +
tools/perf/util/sort.c | 43 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 1 +
tools/perf/util/symbol.h | 1 +
8 files changed, 101 insertions(+), 3 deletions(-)
--
2.7.4
