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Date: Thu, 17 Apr 2014 02:55:54 -0700
From: tip-bot for Namhyung Kim <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
tglx@...utronix.de, namhyung@...nel.org, jolsa@...hat.com
Subject: [tip:perf/core] perf top: Add --percentage option
Commit-ID: 33db4568e1f41efe6d0e4695483f968fc1135bf3
Gitweb: http://git.kernel.org/tip/33db4568e1f41efe6d0e4695483f968fc1135bf3
Author: Namhyung Kim <namhyung@...nel.org>
AuthorDate: Fri, 7 Feb 2014 12:06:07 +0900
Committer: Jiri Olsa <jolsa@...hat.com>
CommitDate: Wed, 16 Apr 2014 17:16:03 +0200
perf top: Add --percentage option
The --percentage option is for controlling overhead percentage
displayed. It can only receive either of "relative" or "absolute".
Move the parser callback function into a common location since it's
used by multiple commands now.
For more information, please see previous commit same thing done to
"perf report".
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/r/1397145720-8063-4-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
tools/perf/Documentation/perf-top.txt | 18 +++++++++++++++---
tools/perf/builtin-report.c | 16 +---------------
tools/perf/builtin-top.c | 5 +++--
tools/perf/util/hist.c | 13 +++++++++++++
tools/perf/util/hist.h | 5 +++++
5 files changed, 37 insertions(+), 20 deletions(-)
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 976b00c..64ed79c 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -123,13 +123,16 @@ Default is to monitor all CPUS.
Show a column with the sum of periods.
--dsos::
- Only consider symbols in these dsos.
+ Only consider symbols in these dsos. This option will affect the
+ percentage of the overhead column. See --percentage for more info.
--comms::
- Only consider symbols in these comms.
+ Only consider symbols in these comms. This option will affect the
+ percentage of the overhead column. See --percentage for more info.
--symbols::
- Only consider these symbols.
+ Only consider these symbols. This option will affect the
+ percentage of the overhead column. See --percentage for more info.
-M::
--disassembler-style=:: Set disassembler style for objdump.
@@ -165,6 +168,15 @@ Default is to monitor all CPUS.
Do not show entries which have an overhead under that percent.
(Default: 0).
+--percentage::
+ Determine how to display the overhead percentage of filtered entries.
+ Filters can be applied by --comms, --dsos and/or --symbols options and
+ Zoom operations on the TUI (thread, dso, etc).
+
+ "relative" means it's relative to filtered entries only so that the
+ sum of shown entries will be always 100%. "absolute" means it retains
+ the original value before and after the filter is applied.
+
INTERACTIVE PROMPTING KEYS
--------------------------
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 7ec351b..af8cb7a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -717,20 +717,6 @@ parse_percent_limit(const struct option *opt, const char *str,
return 0;
}
-static int
-parse_percentage(const struct option *opt __maybe_unused, const char *str,
- int unset __maybe_unused)
-{
- if (!strcmp(str, "relative"))
- symbol_conf.filter_relative = true;
- else if (!strcmp(str, "absolute"))
- symbol_conf.filter_relative = false;
- else
- return -1;
-
- return 0;
-}
-
int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
{
struct perf_session *session;
@@ -854,7 +840,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_CALLBACK(0, "percent-limit", &report, "percent",
"Don't show entries under that percent", parse_percent_limit),
OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
- "how to display percentage of filtered entries", parse_percentage),
+ "how to display percentage of filtered entries", parse_filter_percentage),
OPT_END()
};
struct perf_data_file file = {
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 2526901..37d3046 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -697,8 +697,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
top->exact_samples++;
- if (perf_event__preprocess_sample(event, machine, &al, sample) < 0 ||
- al.filtered)
+ if (perf_event__preprocess_sample(event, machine, &al, sample) < 0)
return;
if (!top->kptr_restrict_warned &&
@@ -1119,6 +1118,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
OPT_CALLBACK(0, "percent-limit", &top, "percent",
"Don't show entries under that percent", parse_percent_limit),
+ OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
+ "How to display percentage of filtered entries", parse_filter_percentage),
OPT_END()
};
const char * const top_usage[] = {
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 3ebd89a..3c2dd23 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -943,3 +943,16 @@ u64 hists__total_period(struct hists *hists)
return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period :
hists->stats.total_period;
}
+
+int parse_filter_percentage(const struct option *opt __maybe_unused,
+ const char *arg, int unset __maybe_unused)
+{
+ if (!strcmp(arg, "relative"))
+ symbol_conf.filter_relative = true;
+ else if (!strcmp(arg, "absolute"))
+ symbol_conf.filter_relative = false;
+ else
+ return -1;
+
+ return 0;
+}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 3191496..a4ec336 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -254,4 +254,9 @@ static inline int script_browse(const char *script_opt __maybe_unused)
#endif
unsigned int hists__sort_list_width(struct hists *hists);
+
+struct option;
+int parse_filter_percentage(const struct option *opt __maybe_unused,
+ const char *arg, int unset __maybe_unused);
+
#endif /* __PERF_HIST_H */
--
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