From: Arnaldo Carvalho de Melo <acme@infradead.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Namhyung Kim <namhyung@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 03/10] perf report: Document '--call-graph' for optional print_limit argument
Date: Tue, 20 Dec 2011 17:18:04 -0200 [thread overview]
Message-ID: <1324408691-28296-4-git-send-email-acme@infradead.org> (raw)
In-Reply-To: <1324408691-28296-1-git-send-email-acme@infradead.org>
From: Namhyung Kim <namhyung@gmail.com>
The '--call-graph' command line option can receive undocumented optional
print_limit argument. Besides, use strtoul() to parse the option since
its type is u32.
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1323703017-6060-2-git-send-email-namhyung@gmail.com
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-report.txt | 5 +++--
tools/perf/builtin-report.c | 6 +++---
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index dc85392..35af0dc 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -80,9 +80,10 @@ OPTIONS
--dump-raw-trace::
Dump raw trace in ASCII.
--g [type,min,order]::
+-g [type,min[,limit],order]::
--call-graph::
- Display call chains using type, min percent threshold and order.
+ Display call chains using type, min percent threshold, optional print
+ limit and order.
type can be either:
- flat: single column, linear exposure of call chains.
- graph: use a graph tree, displaying absolute overhead rates.
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ece7c5d..b2654c9 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -407,7 +407,7 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset)
goto setup;
if (tok2[0] != 'c') {
- callchain_param.print_limit = strtod(tok2, &endptr);
+ callchain_param.print_limit = strtoul(tok2, &endptr, 0);
tok2 = strtok(NULL, ",");
if (!tok2)
goto setup;
@@ -485,8 +485,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
"regex filter to identify parent, see: '--sort parent'"),
OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
"Only display entries with parent-match"),
- OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent, call_order",
- "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold and callchain order. "
+ OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
+ "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
"Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
"alias for inverted call graph"),
--
1.7.8.rc0.35.gee6df
next prev parent reply other threads:[~2011-12-20 19:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-20 19:18 [GIT PULL 00/10] perf/core improvements and fixes Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 01/10] perf record: Add ability to record event period Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 02/10] perf evsel: Fix uninitialized memory access to struct perf_sample Arnaldo Carvalho de Melo
2011-12-20 19:18 ` Arnaldo Carvalho de Melo [this message]
2011-12-20 19:18 ` [PATCH 04/10] perf evlist: Fix errno value reporting on failed mmap Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 05/10] perf symbols: Get rid of duplicated snprintf() Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 06/10] perf symbols: Fix error path on symbol__init() Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 07/10] perf tools: Fix a memory leak on perf_read_values_destroy Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 08/10] perf tools: Remove stale git headlines from top comment Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 09/10] perf events: Tidy up perf_event__preprocess_sample Arnaldo Carvalho de Melo
2011-12-20 19:18 ` [PATCH 10/10] perf test: Add more automated tests for event parsing Arnaldo Carvalho de Melo
2011-12-20 19:33 ` [GIT PULL 00/10] perf/core improvements and fixes Ingo Molnar
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