Em Fri, Sep 04, 2015 at 10:45:43AM -0400, kan.li...@intel.com escreveu:
> From: Kan Liang <kan.li...@intel.com>
>
> This patch enable perf report to sort by processor socket
>
> $ perf report --stdio --sort socket,comm,dso,symbol
> # To display the perf.data header info, please use
> --header/--header-only options.
> #
> #
> # Total Lost Samples: 0
> #
> # Samples: 686 of event 'cycles'
> # Event count (approx.): 349215462
> #
> # Overhead SOCKET Command Shared Object Symbol
> # ........ ...... ......... ................
> .................................
So this works in 'perf top' only for the first screen rendering, when it
refreshes we lose the "SOCKET" header (why all caps?) and the colum
stops being %03d and instead becomes %d, I am checking now.
- Arnaldo
> #
> 97.05% 000 test test [.] plusB_c
> 0.98% 000 test test [.] plusA_c
> 0.93% 001 perf [kernel.vmlinux] [k]
> smp_call_function_single
> 0.19% 001 perf [kernel.vmlinux] [k] page_fault
> 0.19% 001 swapper [kernel.vmlinux] [k] pm_qos_request
> 0.16% 000 test [kernel.vmlinux] [k] add_mm_counter_fast
>
> Signed-off-by: Kan Liang <kan.li...@intel.com>
> ---
> tools/perf/Documentation/perf-report.txt | 3 ++-
> tools/perf/util/hist.h | 1 +
> tools/perf/util/sort.c | 22 ++++++++++++++++++++++
> tools/perf/util/sort.h | 1 +
> 4 files changed, 26 insertions(+), 1 deletion(-)
>
> diff --git a/tools/perf/Documentation/perf-report.txt
> b/tools/perf/Documentation/perf-report.txt
> index 9c7981b..92361a7 100644
> --- a/tools/perf/Documentation/perf-report.txt
> +++ b/tools/perf/Documentation/perf-report.txt
> @@ -68,7 +68,7 @@ OPTIONS
> --sort=::
> Sort histogram entries by given key(s) - multiple keys can be specified
> in CSV format. Following sort keys are available:
> - pid, comm, dso, symbol, parent, cpu, srcline, weight, local_weight.
> + pid, comm, dso, symbol, parent, cpu, socket, srcline, weight,
> local_weight.
>
> Each key has following meaning:
>
> @@ -79,6 +79,7 @@ OPTIONS
> - parent: name of function matched to the parent regex filter. Unmatched
> entries are displayed as "[other]".
> - cpu: cpu number the task ran at the time of sample
> + - socket: processor socket number the task ran at the time of sample
> - srcline: filename and line number executed at the time of sample. The
> DWARF debugging info must be provided.
> - srcfile: file name of the source file of the same. Requires dwarf
> diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
> index de6d58e..5d04d28 100644
> --- a/tools/perf/util/hist.h
> +++ b/tools/perf/util/hist.h
> @@ -29,6 +29,7 @@ enum hist_column {
> HISTC_COMM,
> HISTC_PARENT,
> HISTC_CPU,
> + HISTC_SOCKET,
> HISTC_SRCLINE,
> HISTC_SRCFILE,
> HISTC_MISPREDICT,
> diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
> index a97bcee..c4a32b9 100644
> --- a/tools/perf/util/sort.c
> +++ b/tools/perf/util/sort.c
> @@ -421,6 +421,27 @@ struct sort_entry sort_cpu = {
> .se_width_idx = HISTC_CPU,
> };
>
> +/* --sort socket */
> +
> +static int64_t
> +sort__socket_cmp(struct hist_entry *left, struct hist_entry *right)
> +{
> + return right->socket - left->socket;
> +}
> +
> +static int hist_entry__socket_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width)
> +{
> + return repsep_snprintf(bf, size, "%*.*d", width, width-3, he->socket);
> +}
> +
> +struct sort_entry sort_socket = {
> + .se_header = "SOCKET",
> + .se_cmp = sort__socket_cmp,
> + .se_snprintf = hist_entry__socket_snprintf,
> + .se_width_idx = HISTC_SOCKET,
> +};
> +
> /* sort keys for branch stacks */
>
> static int64_t
> @@ -1248,6 +1269,7 @@ static struct sort_dimension common_sort_dimensions[] =
> {
> DIM(SORT_SYM, "symbol", sort_sym),
> DIM(SORT_PARENT, "parent", sort_parent),
> DIM(SORT_CPU, "cpu", sort_cpu),
> + DIM(SORT_SOCKET, "socket", sort_socket),
> DIM(SORT_SRCLINE, "srcline", sort_srcline),
> DIM(SORT_SRCFILE, "srcfile", sort_srcfile),
> DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
> diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
> index 7cf1cf7..654ac8a 100644
> --- a/tools/perf/util/sort.h
> +++ b/tools/perf/util/sort.h
> @@ -173,6 +173,7 @@ enum sort_type {
> SORT_SYM,
> SORT_PARENT,
> SORT_CPU,
> + SORT_SOCKET,
> SORT_SRCLINE,
> SORT_SRCFILE,
> SORT_LOCAL_WEIGHT,
> --
> 1.8.3.1
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