Messages in this thread | | | Date | Wed, 24 Feb 2016 22:22:07 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCHSET 00/18] perf tools: Add support for hierachy view (v7) |
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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]$
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