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aec13a7ec7
When a command-line filter is applied in hierarchy mode, output is
broken especially when filtering on lower level. The higher level
entries doesn't show up so it's hard to see the results.
Also it needs to handle multi sort keys in a single hierarchy level.
Before:
$ perf report --hierarchy -s 'cpu,{dso,comm}' --comms swapper --stdio
...
# Overhead CPU / Shared Object+Command
# ........... ...........................
#
13.79% [kernel.vmlinux] swapper
31.71% 000
13.80% [kernel.vmlinux] swapper
0.43% [e1000e] swapper
11.89% [kernel.vmlinux] swapper
9.18% [kernel.vmlinux] swapper
After:
# Overhead CPU / Shared Object+Command
# ........... ...............................
#
33.09% 003
13.79% [kernel.vmlinux] swapper
31.71% 000
13.80% [kernel.vmlinux] swapper
0.43% [e1000e] swapper
21.90% 002
11.89% [kernel.vmlinux] swapper
13.30% 001
9.18% [kernel.vmlinux] swapper
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-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/1457531222-18130-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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