From: Wang Nan <wangnan0@huawei.com>
To: <acme@kernel.org>
Cc: <arnaldo.melo@gmail.com>, <linux-kernel@vger.kernel.org>,
Wang Nan <wangnan0@huawei.com>, He Kuang <hekuang@huawei.com>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>,
Jiri Olsa <jolsa@kernel.org>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Namhyung Kim <namhyung@kernel.org>,
"Zefan Li" <lizefan@huawei.com>, <pi3orama@163.com>
Subject: [PATCH 10/17] perf tools: Enable overwrite settings
Date: Fri, 13 May 2016 07:56:07 +0000 [thread overview]
Message-ID: <1463126174-119290-11-git-send-email-wangnan0@huawei.com> (raw)
In-Reply-To: <1463126174-119290-1-git-send-email-wangnan0@huawei.com>
This patch allows following config terms and option:
Globally setting events to overwrite;
# perf record --overwrite ...
Set specific events to be overwrite or no-overwrite.
# perf record --event cycles/overwrite/ ...
# perf record --event cycles/no-overwrite/ ...
Add missing config terms and update config term array size because the
longest string length is changed.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: He Kuang <hekuang@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
---
tools/perf/builtin-record.c | 1 +
tools/perf/perf.h | 1 +
tools/perf/util/evsel.c | 4 ++++
tools/perf/util/evsel.h | 2 ++
tools/perf/util/parse-events.c | 20 ++++++++++++++++++--
tools/perf/util/parse-events.h | 2 ++
tools/perf/util/parse-events.l | 2 ++
7 files changed, 30 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index d9a92e0..939aa68 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1265,6 +1265,7 @@ struct option __record_options[] = {
OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit,
&record.opts.no_inherit_set,
"child tasks do not inherit counters"),
+ OPT_BOOLEAN(0, "overwrite", &record.opts.overwrite, "use overwrite mode"),
OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"),
OPT_CALLBACK('m', "mmap-pages", &record.opts, "pages[,pages]",
"number of mmap data pages and AUX area tracing mmap pages",
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index c35bcfd..386d030 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -59,6 +59,7 @@ struct record_opts {
bool record_switch_events;
bool all_kernel;
bool all_user;
+ bool overwrite;
unsigned int freq;
unsigned int mmap_pages;
unsigned int auxtrace_mmap_pages;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index a23f547..be4fc25 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -670,6 +670,9 @@ static void apply_config_terms(struct perf_evsel *evsel,
*/
attr->inherit = term->val.inherit ? 1 : 0;
break;
+ case PERF_EVSEL__CONFIG_TERM_OVERWRITE:
+ evsel->overwrite = term->val.overwrite ? 1 : 0;
+ break;
default:
break;
}
@@ -746,6 +749,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
attr->sample_id_all = perf_missing_features.sample_id_all ? 0 : 1;
attr->inherit = !opts->no_inherit;
+ evsel->overwrite = opts->overwrite;
perf_evsel__set_sample_bit(evsel, IP);
perf_evsel__set_sample_bit(evsel, TID);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index c1f1015..bce99fa 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -44,6 +44,7 @@ enum {
PERF_EVSEL__CONFIG_TERM_CALLGRAPH,
PERF_EVSEL__CONFIG_TERM_STACK_USER,
PERF_EVSEL__CONFIG_TERM_INHERIT,
+ PERF_EVSEL__CONFIG_TERM_OVERWRITE,
PERF_EVSEL__CONFIG_TERM_MAX,
};
@@ -57,6 +58,7 @@ struct perf_evsel_config_term {
char *callgraph;
u64 stack_user;
bool inherit;
+ bool overwrite;
} val;
};
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index bcbc983..85f813d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -900,6 +900,8 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
[PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size",
[PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit",
[PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit",
+ [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite",
+ [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
};
static bool config_term_shrinked;
@@ -992,6 +994,12 @@ do { \
case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
CHECK_TYPE_VAL(NUM);
break;
+ case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
+ CHECK_TYPE_VAL(NUM);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
+ CHECK_TYPE_VAL(NUM);
+ break;
case PARSE_EVENTS__TERM_TYPE_NAME:
CHECK_TYPE_VAL(STR);
break;
@@ -1040,6 +1048,8 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
case PARSE_EVENTS__TERM_TYPE_INHERIT:
case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
+ case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
+ case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
return config_term_common(attr, term, err);
default:
if (err) {
@@ -1109,6 +1119,12 @@ do { \
case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1);
break;
+ case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
+ ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
+ ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1);
+ break;
default:
break;
}
@@ -2322,9 +2338,9 @@ static void config_terms_list(char *buf, size_t buf_sz)
char *parse_events_formats_error_string(char *additional_terms)
{
char *str;
- /* "branch_type" is the longest name */
+ /* "no-overwrite" is the longest name */
char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
- (sizeof("branch_type") - 1)];
+ (sizeof("no-overwrite") - 1)];
config_terms_list(static_terms, sizeof(static_terms));
/* valid terms */
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index d740c3c..f341d9d 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -68,6 +68,8 @@ enum {
PARSE_EVENTS__TERM_TYPE_STACKSIZE,
PARSE_EVENTS__TERM_TYPE_NOINHERIT,
PARSE_EVENTS__TERM_TYPE_INHERIT,
+ PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
+ PARSE_EVENTS__TERM_TYPE_OVERWRITE,
__PARSE_EVENTS__TERM_TYPE_NR,
};
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 1477fbc..cc4c426 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -201,6 +201,8 @@ call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
+overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
+no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
, { return ','; }
"/" { BEGIN(INITIAL); return '/'; }
{name_minus} { return str(yyscanner, PE_NAME); }
--
1.8.3.4
next prev parent reply other threads:[~2016-05-13 7:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-13 7:55 [PATCH 00/17] perf tools: Support overwritable ring buffer Wang Nan
2016-05-13 7:55 ` [PATCH 01/17] perf tools: Extract __perf_evlist__mmap_read() Wang Nan
2016-05-13 13:03 ` Arnaldo Carvalho de Melo
2016-05-13 7:55 ` [PATCH 02/17] perf tools: Add evlist channel helpers Wang Nan
2016-05-13 13:05 ` Arnaldo Carvalho de Melo
2016-05-18 3:27 ` Wangnan (F)
2016-05-18 13:23 ` Arnaldo Carvalho de Melo
2016-05-13 7:56 ` [PATCH 03/17] perf tools: Automatically add new channel according to evlist Wang Nan
2016-05-13 7:56 ` [PATCH 04/17] perf tools: Operate multiple channels Wang Nan
2016-05-13 7:56 ` [PATCH 05/17] perf record: Prevent reading invalid data in record__mmap_read Wang Nan
2016-05-13 7:56 ` [PATCH 06/17] perf tools: Squash overwrite setting into channel Wang Nan
2016-05-13 7:56 ` [PATCH 07/17] perf record: Don't read from and poll overwrite channel Wang Nan
2016-05-13 7:56 ` [PATCH 08/17] perf record: Don't poll on " Wang Nan
2016-05-13 13:12 ` Arnaldo Carvalho de Melo
2016-05-16 3:18 ` Wangnan (F)
2016-05-13 7:56 ` [PATCH 09/17] perf tools: Detect avalibility of write_backward Wang Nan
2016-05-13 13:08 ` Arnaldo Carvalho de Melo
2016-05-20 15:31 ` Wangnan (F)
2016-05-20 15:39 ` Arnaldo Carvalho de Melo
2016-05-13 7:56 ` Wang Nan [this message]
2016-05-16 13:38 ` [PATCH 10/17] perf tools: Enable overwrite settings Arnaldo Carvalho de Melo
2016-05-13 7:56 ` [PATCH 11/17] perf tools: Set write_backward attribut bit for overwrite events Wang Nan
2016-05-13 7:56 ` [PATCH 12/17] perf tools: Record fd into perf_mmap Wang Nan
2016-05-13 7:56 ` [PATCH 13/17] perf tools: Add API to pause a channel Wang Nan
2016-05-13 7:56 ` [PATCH 14/17] perf record: Rename variable to make code clear Wang Nan
2016-05-13 7:56 ` [PATCH 15/17] perf record: Read from backward ring buffer Wang Nan
2016-05-13 7:56 ` [PATCH 16/17] perf record: Toggle overwrite ring buffer for reading Wang Nan
2016-05-13 7:56 ` [PATCH 17/17] perf tools: Don't warn about out of order event if write_backward is used Wang Nan
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