[PATCH 11/11] perf, tools: Add a --no-desc flag to perf list
From: Andi Kleen
Date: Fri Jul 11 2014 - 20:01:01 EST
From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Add a --no-desc flag to perf list to not print the event descriptions
that were earlier added for JSON events. This may be useful to
get a less crowded listing.
It's still default to print descriptions as that is the more useful
default for most users.
Before:
% perf list
...
baclears.any [Counts the total number when the front end is
resteered, mainly when the BPU cannot provide a
correct prediction and this is corrected by other
branch handling mechanisms at the front end]
br_inst_exec.all_branches [Speculative and retired branches]
After:
% perf list --no-desc
...
baclears.any [Kernel PMU event]
br_inst_exec.all_branches [Kernel PMU event]
v2: Rename --quiet to --no-desc. Add option to man page.
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
tools/perf/Documentation/perf-list.txt | 5 ++++-
tools/perf/builtin-list.c | 14 +++++++++-----
tools/perf/util/parse-events.c | 4 ++--
tools/perf/util/parse-events.h | 2 +-
tools/perf/util/pmu.c | 4 ++--
tools/perf/util/pmu.h | 2 +-
6 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index d241b5c..7a6b25d 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -8,7 +8,7 @@ perf-list - List all symbolic event types
SYNOPSIS
--------
[verse]
-'perf list' [hw|sw|cache|tracepoint|pmu|event_glob]
+'perf list' [--no-desc] [hw|sw|cache|tracepoint|pmu|event_glob]
DESCRIPTION
-----------
@@ -23,6 +23,9 @@ automatically downloaded with perf download.
The JSON event file can be also specified with the EVENTMAP environment
variable.
+--no-desc::
+Don't print descriptions.
+
[[EVENT_MODIFIERS]] EVENT MODIFIERS
---------------
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 086c96f..68752a1 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -16,16 +16,20 @@
#include "util/pmu.h"
#include "util/parse-options.h"
+static bool desc_flag = true;
+
int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
{
int i;
const struct option list_options[] = {
OPT_STRING(0, "events-file", &json_file, "json file",
"Read event json file"),
+ OPT_BOOLEAN('d', "desc", &desc_flag,
+ "Print extra event descriptions. --no-desc to not print."),
OPT_END()
};
const char * const list_usage[] = {
- "perf list [hw|sw|cache|tracepoint|pmu|event_glob]",
+ "perf list [--events-file FILE] [--no-desc] [hw|sw|cache|tracepoint|pmu|event_glob]",
NULL
};
@@ -35,7 +39,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
setup_pager();
if (argc == 0) {
- print_events(NULL, false);
+ print_events(NULL, false, !desc_flag);
return 0;
}
@@ -54,15 +58,15 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, false);
else if (strcmp(argv[i], "pmu") == 0)
- print_pmu_events(NULL, false);
+ print_pmu_events(NULL, false, !desc_flag);
else if (strcmp(argv[i], "--raw-dump") == 0)
- print_events(NULL, true);
+ print_events(NULL, true, !desc_flag);
else {
char *sep = strchr(argv[i], ':'), *s;
int sep_idx;
if (sep == NULL) {
- print_events(argv[i], false);
+ print_events(argv[i], false, !desc_flag);
continue;
}
sep_idx = sep - argv[i];
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 1e15df1..e2badf3 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1231,7 +1231,7 @@ static void print_symbol_events(const char *event_glob, unsigned type,
/*
* Print the help text for the event symbols:
*/
-void print_events(const char *event_glob, bool name_only)
+void print_events(const char *event_glob, bool name_only, bool quiet)
{
if (!name_only) {
printf("\n");
@@ -1246,7 +1246,7 @@ void print_events(const char *event_glob, bool name_only)
print_hwcache_events(event_glob, name_only);
- print_pmu_events(event_glob, name_only);
+ print_pmu_events(event_glob, name_only, quiet);
if (event_glob != NULL)
return;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index df094b4..f3ef0dc 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -100,7 +100,7 @@ void parse_events_update_lists(struct list_head *list_event,
struct list_head *list_all);
void parse_events_error(void *data, void *scanner, char const *msg);
-void print_events(const char *event_glob, bool name_only);
+void print_events(const char *event_glob, bool name_only, bool quiet);
void print_events_type(u8 type);
void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
bool name_only);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 397e400..b103932 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -790,7 +790,7 @@ static void wordwrap(char *s, int start, int max, int corr)
}
}
-void print_pmu_events(const char *event_glob, bool name_only)
+void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag)
{
struct perf_pmu *pmu;
struct perf_pmu_alias *alias;
@@ -838,7 +838,7 @@ void print_pmu_events(const char *event_glob, bool name_only)
printf("%s ", aliases[j].name);
continue;
}
- if (aliases[j].desc) {
+ if (aliases[j].desc && !quiet_flag) {
if (numdesc++ == 0 && printed)
printf("\n");
printf(" %-50s [", aliases[j].name);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 87a1da4..9b22d0f 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -42,7 +42,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head);
struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
-void print_pmu_events(const char *event_glob, bool name_only);
+void print_pmu_events(const char *event_glob, bool name_only, bool quiet);
bool pmu_have_event(const char *pname, const char *name);
int perf_pmu__test(void);
--
1.9.3
--
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