Em Thu, Feb 25, 2016 at 12:13:32AM +0900, Namhyung Kim escreveu:
> Hello,
>
> This patchset implements a new feature that collects hist entries in a
> hierachical manner. That means lower-level entries belong to an
> upper-level entry. The entry hierachy is built on the sort keys
> given, so users can set it whatever they want. It only shows
> top-level entries first, and user can expand/collapse it dynamically.
Some oddity: look at the line with 3.92%, it shows just the DSO... Ok, there
probably are no symbols above the specified threshold (--percent-limit 1), but
it is strange none the less, perhaps we can add something like:
# Overhead Command / Shared Object / Symbol
# ..............
..............................................................................................................................................
#
72.83% cc1
60.88% cc1
1.92% [.] bitmap_set_bit
7.37% libc-2.22.so
2.90% [.] _int_malloc
|
--2.04%--0
_int_malloc
1.13% [.] _int_free
3.92% [kernel.vmlinux]
(no symbols >= 1%)
Original output:
[acme@jouet linux]$ perf report --hierarchy --percent-limit 1 | head -30
no symbols found in /usr/bin/gcc, maybe install a debug package?
# To display the perf.data header info, please use --header/--header-only
options.
#
#
# Total Lost Samples: 0
#
# Samples: 10K of event 'cycles:ppp'
# Event count (approx.): 6703622666
#
# Overhead Command / Shared Object / Symbol
# ..............
..............................................................................................................................................
#
72.83% cc1
60.88% cc1
1.92% [.] bitmap_set_bit
7.37% libc-2.22.so
2.90% [.] _int_malloc
|
--2.04%--0
_int_malloc
1.13% [.] _int_free
3.92% [kernel.vmlinux]
5.96% as
3.19% [kernel.vmlinux]
1.31% as
5.33% conf
2.39% conf
1.52% libc-2.22.so
1.37% [kernel.vmlinux]
4.88% ld
[acme@jouet linux]$
