diff options
author | David Ahern <daahern@cisco.com> | 2011-03-09 22:23:28 -0700 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-03-14 17:07:20 -0300 |
commit | 1424dc96807909438282663079adc7f27c10b4a5 (patch) | |
tree | 1201a9cbe3bf34584f67ea3ddeef3c93bcd5ecc6 /tools/perf | |
parent | c0230b2bfbd16e42d937c34aed99e5d6493eb5e4 (diff) |
perf script: Add support for H/W and S/W events
Custom fields set for each type by prepending field argument with type.
For file with multiple event types (e.g., trace and S/W) display of an
event type suppressed by setting output fields to "".
e.g.,
perf record -ga -e sched:sched_switch -e cpu-clock -c 10000000 -R -- sleep 1
perf script
openssl 11496 [000] 9711.807107: cpu-clock-msecs:
ffffffff810c22dc arch_local_irq_restore ([kernel.kallsyms])
ffffffff810c518c __alloc_pages_nodemask ([kernel.kallsyms])
ffffffff810297b2 pte_alloc_one ([kernel.kallsyms])
ffffffff810d8b98 __pte_alloc ([kernel.kallsyms])
ffffffff810daf07 handle_mm_fault ([kernel.kallsyms])
ffffffff8138763a do_page_fault ([kernel.kallsyms])
ffffffff81384a65 page_fault ([kernel.kallsyms])
7f6130507d70 asn1_check_tlen (/lib64/libcrypto.so.1.0.0c)
0 ()
openssl 11496 [000] 9711.808042: sched_switch: prev_comm=openssl ...
kworker/0:0 4 [000] 9711.808067: sched_switch: prev_comm=kworker/...
swapper 0 [001] 9711.808090: sched_switch: prev_comm=kworker/...
sshd 11451 [001] 9711.808185: sched_switch: prev_comm=sshd pre...
swapper 0 [001] 9711.816155: cpu-clock-msecs:
ffffffff81023609 native_safe_halt ([kernel.kallsyms])
ffffffff8100132a cpu_idle ([kernel.kallsyms])
ffffffff8137cf9b start_secondary ([kernel.kallsyms])
openssl 11496 [000] 9711.817104: cpu-clock-msecs:
7f61304ad723 AES_cbc_encrypt (/lib64/libcrypto.so.1.0.0c)
7fff3402f950 ()
12f0debc9a785634 ()
swapper 0 [001] 9711.826155: cpu-clock-msecs:
ffffffff81023609 native_safe_halt ([kernel.kallsyms])
ffffffff8100132a cpu_idle ([kernel.kallsyms])
ffffffff8137cf9b start_secondary ([kernel.kallsyms])
To suppress trace events within the file and use default output for S/W events:
perf script -f trace:
or to suppress S/W events and do default display for trace events:
perf script -f sw:
Custom field selections:
perf script -f sw:comm,tid,time -f trace:time,trace
openssl 11496 9711.797162:
swapper 0 9711.807071:
openssl 11496 9711.807107:
9711.808042: prev_comm=openssl prev_pid=11496 prev_prio=120 prev_state=R ...
9711.808067: prev_comm=kworker/0:0 prev_pid=4 prev_prio=120 prev_state=S ...
9711.808090: prev_comm=kworker/0:0 prev_pid=0 prev_prio=120 prev_state=R ...
9711.808185: prev_comm=sshd prev_pid=11451 prev_prio=120 prev_state=S ==>...
swapper 0 9711.816155:
openssl 11496 9711.817104:
swapper 0 9711.826155:
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <1299734608-5223-7-git-send-email-daahern@cisco.com>
Signed-off-by: David Ahern <daahern@cisco.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/Documentation/perf-script.txt | 5 | ||||
-rw-r--r-- | tools/perf/builtin-script.c | 155 | ||||
-rw-r--r-- | tools/perf/util/parse-events.c | 22 | ||||
-rw-r--r-- | tools/perf/util/parse-events.h | 1 |
4 files changed, 147 insertions, 36 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index c64118a4de49..66f040b30729 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -115,7 +115,10 @@ OPTIONS -f:: --fields Comma separated list of fields to print. Options are: - comm, tid, pid, time, cpu, event, trace, sym + comm, tid, pid, time, cpu, event, trace, sym. Field + list must be prepended with the type, trace, sw or hw, + to indicate to which event type the field list applies. + e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace -k:: --vmlinux=<file>:: diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index b45b09c13f7a..9f5fc5492141 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -12,6 +12,8 @@ #include "util/trace-event.h" #include "util/parse-options.h" #include "util/util.h" +#include "util/evlist.h" +#include "util/evsel.h" static char const *script_name; static char const *generate_script_lang; @@ -47,16 +49,65 @@ struct output_option { }; /* default set to maintain compatibility with current format */ -static u64 output_fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE; +static u64 output_fields[PERF_TYPE_MAX] = { + [PERF_TYPE_HARDWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + [PERF_TYPE_SOFTWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + [PERF_TYPE_TRACEPOINT] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ + PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, +}; static bool output_set_by_user; -#define PRINT_FIELD(x) (output_fields & PERF_OUTPUT_##x) +#define PRINT_FIELD(x) (output_fields[attr->type] & PERF_OUTPUT_##x) + +static int perf_session__check_attr(struct perf_session *session, + struct perf_event_attr *attr) +{ + if (PRINT_FIELD(TRACE) && + !perf_session__has_traces(session, "record -R")) + return -EINVAL; + + if (PRINT_FIELD(SYM)) { + if (!(session->sample_type & PERF_SAMPLE_IP)) { + pr_err("Samples do not contain IP data.\n"); + return -EINVAL; + } + if (!no_callchain && + !(session->sample_type & PERF_SAMPLE_CALLCHAIN)) + symbol_conf.use_callchain = false; + } + + if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && + !(session->sample_type & PERF_SAMPLE_TID)) { + pr_err("Samples do not contain TID/PID data.\n"); + return -EINVAL; + } + + if (PRINT_FIELD(TIME) && + !(session->sample_type & PERF_SAMPLE_TIME)) { + pr_err("Samples do not contain timestamps.\n"); + return -EINVAL; + } + + if (PRINT_FIELD(CPU) && + !(session->sample_type & PERF_SAMPLE_CPU)) { + pr_err("Samples do not contain cpu.\n"); + return -EINVAL; + } + + return 0; +} static void print_sample_start(struct perf_sample *sample, - struct thread *thread) + struct thread *thread, + struct perf_event_attr *attr) { int type; struct event *event; @@ -97,10 +148,13 @@ static void print_sample_start(struct perf_sample *sample, } if (PRINT_FIELD(EVNAME)) { - type = trace_parse_common_type(sample->raw_data); - event = trace_find_event(type); - if (event) - evname = event->name; + if (attr->type == PERF_TYPE_TRACEPOINT) { + type = trace_parse_common_type(sample->raw_data); + event = trace_find_event(type); + if (event) + evname = event->name; + } else + evname = __event_name(attr->type, attr->config); printf("%s: ", evname ? evname : "(unknown)"); } @@ -108,10 +162,27 @@ static void print_sample_start(struct perf_sample *sample, static void process_event(union perf_event *event __unused, struct perf_sample *sample, - struct perf_session *session __unused, + struct perf_session *session, struct thread *thread) { - print_sample_start(sample, thread); + struct perf_event_attr *attr; + struct perf_evsel *evsel; + + evsel = perf_evlist__id2evsel(session->evlist, sample->id); + if (evsel == NULL) { + pr_err("Invalid data. Contains samples with id not in " + "its header!\n"); + return; + } + attr = &evsel->attr; + + if (output_fields[attr->type] == 0) + return; + + if (perf_session__check_attr(session, attr) < 0) + return; + + print_sample_start(sample, thread, attr); if (PRINT_FIELD(TRACE)) print_trace_event(sample->cpu, sample->raw_data, @@ -183,19 +254,17 @@ static int process_sample_event(union perf_event *event, return -1; } - if (session->sample_type & PERF_SAMPLE_RAW) { - if (debug_mode) { - if (sample->time < last_timestamp) { - pr_err("Samples misordered, previous: %" PRIu64 - " this: %" PRIu64 "\n", last_timestamp, - sample->time); - nr_unordered++; - } - last_timestamp = sample->time; - return 0; + if (debug_mode) { + if (sample->time < last_timestamp) { + pr_err("Samples misordered, previous: %" PRIu64 + " this: %" PRIu64 "\n", last_timestamp, + sample->time); + nr_unordered++; } - scripting_ops->process_event(event, sample, session, thread); + last_timestamp = sample->time; + return 0; } + scripting_ops->process_event(event, sample, session, thread); session->hists.stats.total_period += sample->period; return 0; @@ -391,21 +460,40 @@ static int parse_output_fields(const struct option *opt __used, int i, imax = sizeof(all_output_options) / sizeof(struct output_option); int rc = 0; char *str = strdup(arg); + int type = -1; if (!str) return -ENOMEM; - tok = strtok(str, ","); + tok = strtok(str, ":"); if (!tok) { - fprintf(stderr, "Invalid field string."); + fprintf(stderr, + "Invalid field string - not prepended with type."); + return -EINVAL; + } + + /* first word should state which event type user + * is specifying the fields + */ + if (!strcmp(tok, "hw")) + type = PERF_TYPE_HARDWARE; + else if (!strcmp(tok, "sw")) + type = PERF_TYPE_SOFTWARE; + else if (!strcmp(tok, "trace")) + type = PERF_TYPE_TRACEPOINT; + else { + fprintf(stderr, "Invalid event type in field string."); return -EINVAL; } - output_fields = 0; + output_fields[type] = 0; while (1) { + tok = strtok(NULL, ","); + if (!tok) + break; for (i = 0; i < imax; ++i) { if (strcmp(tok, all_output_options[i].str) == 0) { - output_fields |= all_output_options[i].field; + output_fields[type] |= all_output_options[i].field; break; } } @@ -414,10 +502,11 @@ static int parse_output_fields(const struct option *opt __used, rc = -EINVAL; break; } + } - tok = strtok(NULL, ","); - if (!tok) - break; + if (output_fields[type] == 0) { + pr_debug("No fields requested for %s type. " + "Events will not be displayed\n", event_type(type)); } output_set_by_user = true; @@ -747,7 +836,7 @@ static const struct option options[] = { OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", "Look for files with symbols relative to this directory"), OPT_CALLBACK('f', "fields", NULL, "str", - "comma separated output fields. Options: comm,tid,pid,time,cpu,event,trace,sym", + "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace. Fields: comm,tid,pid,time,cpu,event,trace,sym", parse_output_fields), OPT_END() @@ -929,15 +1018,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) if (session == NULL) return -ENOMEM; - if (!no_callchain && (session->sample_type & PERF_SAMPLE_CALLCHAIN)) + if (!no_callchain) symbol_conf.use_callchain = true; else symbol_conf.use_callchain = false; - if (strcmp(input_name, "-") && - !perf_session__has_traces(session, "record -R")) - return -EINVAL; - if (generate_script_lang) { struct stat perf_stat; int input; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 54a7e2634d58..952b4ae3d954 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -263,6 +263,28 @@ static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result) return name; } +const char *event_type(int type) +{ + switch (type) { + case PERF_TYPE_HARDWARE: + return "hardware"; + + case PERF_TYPE_SOFTWARE: + return "software"; + + case PERF_TYPE_TRACEPOINT: + return "tracepoint"; + + case PERF_TYPE_HW_CACHE: + return "hardware-cache"; + + default: + break; + } + + return "unknown"; +} + const char *event_name(struct perf_evsel *evsel) { u64 config = evsel->attr.config; diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 212f88e07a9c..746d3fcbfc2a 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -20,6 +20,7 @@ struct tracepoint_path { extern struct tracepoint_path *tracepoint_id_to_path(u64 config); extern bool have_tracepoints(struct list_head *evlist); +const char *event_type(int type); const char *event_name(struct perf_evsel *event); extern const char *__event_name(int type, u64 config); |