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| author |   Namhyung Kim <namhyung@kernel.org> | 2016-02-27 03:52:46 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-26 19:37:38 -0300 |
| commit | e049d4a3fa194c8aa0d3ca29a9b11b32387ca6e3 (patch) | |
| tree | 77398e336436ae01e5392a2f29d383fdeac61c44 /tools/perf/util/sort.c | |
| parent | perf report: Left align dynamic entries in hierarchy (diff) | |
| download | wireguard-linux-e049d4a3fa194c8aa0d3ca29a9b11b32387ca6e3.tar.xz wireguard-linux-e049d4a3fa194c8aa0d3ca29a9b11b32387ca6e3.zip | |
perf hists: Fix dynamic entry display in hierarchy
When dynamic sort key is used it might not show pretty printed output.
This is because the trace output was not set only for the first dynamic
sort key. During hierarchy_insert_entry() it missed to pass the
trace_output to dynamic entries. Also even if it did, only first entry
will have it. Subsequent entries might set it during collapsing stage
but it's not guaranteed.
Before:
$ perf report --hierarchy --stdio -s ptr,bytes_req,gfp_flags -g none
#
# Overhead ptr / bytes_req / gfp_flags
# .............. ..........................................
#
37.50% 0xffff8803f7669400
37.50% 448
37.50% 66080
10.42% 0xffff8803f766be00
8.33% 96
8.33% 66080
2.08% 512
2.08% 67280
After:
#
# Overhead ptr / bytes_req / gfp_flags
# .............. ..........................................
#
37.50% 0xffff8803f7669400
37.50% 448
37.50% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
10.42% 0xffff8803f766be00
8.33% 96
8.33% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
2.08% 512
2.08% GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/sort.c')
| -rw-r--r-- | tools/perf/util/sort.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 2beb7a6360a4..d26c6b9fe348 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -1764,6 +1764,9 @@ static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, if (hde->raw_trace) goto raw_field; + if (!he->trace_output) + he->trace_output = get_trace_output(he); + field = hde->field; namelen = strlen(field->name); str = he->trace_output; |