linux_dsm_epyc7002/tools/perf
Namhyung Kim 4087d11cd9 perf hists browser: Print overhead percent value for first-level callchain
Currently perf report on TUI doesn't print percent for first-level
callchain entry.

I guess it (wrongly) assumes that there's only a single callchain in the
first level.

This patch fixes it by handling the first level callchains same as
others - if it's not 100% it should print the percent value.

Also it'll affect other callchains in the other way around - if it's
100% (single callchain) it should not print the percentage.

Before:
  -   30.95%     6.84%  abc2     abc2              [.] a
     - a
        - 70.00% c
           - 100.00% apic_timer_interrupt
                smp_apic_timer_interrupt
                local_apic_timer_interrupt
                hrtimer_interrupt
                ...
        + 30.00% b
     + __libc_start_main

After:
  -   30.95%     6.84%  abc2     abc2              [.] a
     - 77.90% a
        - 70.00% c
           - apic_timer_interrupt
             smp_apic_timer_interrupt
             local_apic_timer_interrupt
             hrtimer_interrupt
             ...
        + 30.00% b
     + 22.10% __libc_start_main

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1416816807-6495-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-11-24 11:28:48 -03:00
..
arch perf tools: A thread's machine can be found via thread->mg->machine 2014-10-29 10:32:46 -02:00
bench perf bench futex: Sanitize -q option in requeue 2014-09-29 15:43:26 -03:00
config perf tools: Clean up libelf feature support code 2014-11-19 12:33:46 -03:00
Documentation perf record: Add new -I option to sample interrupted machine state 2014-11-16 11:42:02 +01:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf tools: Add call information to Python export 2014-11-03 18:10:06 -03:00
tests perf test: fix typo in python test 2014-11-19 12:33:47 -03:00
ui perf hists browser: Print overhead percent value for first-level callchain 2014-11-24 11:28:48 -03:00
util perf tools: Only override the default :tid comm entry 2014-11-19 12:37:26 -03:00
.gitignore perf tools: Add perf-read-vdso32 and perf-read-vdsox32 to .gitignore 2014-11-19 12:34:24 -03:00
builtin-annotate.c perf tools: Remove hists from evsel 2014-10-14 17:32:52 -03:00
builtin-bench.c perf bench: Add --repeat option 2014-06-19 16:13:15 -03:00
builtin-buildid-cache.c perf buildid-cache: Use strerror_r instead of strerror 2014-08-15 13:07:59 -03:00
builtin-buildid-list.c perf session: Separating data file properties from session 2013-10-21 17:33:25 -03:00
builtin-diff.c perf diff: Add missing handler for PERF_RECORD_MMAP2 events 2014-11-19 12:33:48 -03:00
builtin-evlist.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-help.c perf help: Use strerror_r instead of strerror 2014-08-15 13:08:26 -03:00
builtin-inject.c perf tools: Add id index 2014-10-29 11:24:47 -02:00
builtin-kmem.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-kvm.c perf kvm: Print kvm specific --help output 2014-10-29 10:32:47 -02:00
builtin-list.c perf list: Add usage 2013-11-05 14:26:41 -03:00
builtin-lock.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-mem.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-probe.c perf probe: Add --quiet option to suppress output result message 2014-10-29 10:32:49 -02:00
builtin-record.c perf record: Add new -I option to sample interrupted machine state 2014-11-16 11:42:02 +01:00
builtin-report.c perf report: Set callchain_param.record_mode for future use 2014-10-15 16:20:03 -03:00
builtin-sched.c perf sched: Stop updating hists stats, not used 2014-10-09 11:46:35 -03:00
builtin-script.c perf tools: Export usage string and option table of perf record 2014-10-29 10:32:47 -02:00
builtin-stat.c perf evsel: No need to drag util/cgroup.h 2014-10-17 12:17:40 -03:00
builtin-timechart.c perf tools: Export usage string and option table of perf record 2014-10-29 10:32:47 -02:00
builtin-top.c perf tools: Remove hists from evsel 2014-10-14 17:32:52 -03:00
builtin-trace.c perf tools: A thread's machine can be found via thread->mg->machine 2014-10-29 10:32:46 -02:00
builtin.h perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
command-list.txt perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
Makefile perf tools: Add 'build-test' make target 2014-01-16 16:26:26 -03:00
Makefile.perf perf tools: Clean up libelf feature support code 2014-11-19 12:33:46 -03:00
MANIFEST perf kvm: Add stat support on s390 2014-07-16 17:57:33 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf sched: Introduce --list-cmds for use by scripts 2014-04-16 17:16:05 +02:00
perf-read-vdso.c perf tools: Build programs to copy 32-bit compatibility 2014-10-29 10:32:48 -02:00
perf-sys.h perf tools: Make CPUINFO_PROC an array to support different kernel versions 2014-10-29 10:27:36 -02:00
perf-with-kcore.sh perf tools: Add perf-with-kcore script 2014-09-17 17:08:08 -03:00
perf.c perf: Use strerror_r instead of strerror 2014-08-15 10:54:29 -03:00
perf.h perf tools: Add core support for sampling intr machine state regs 2014-11-16 11:41:59 +01:00