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perf record: Support new sample type for data page size

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Support new sample type PERF_SAMPLE_DATA_PAGE_SIZE for page size.

Add new option --data-page-size to record sample data page size.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Link: http://lore.kernel.org/lkml/20201130172803.2676-3-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2020-11-30 09:27:53 -08:00 committed by Arnaldo Carvalho de Melo
parent 47d982202f
commit 542b88fd12
7 changed files with 25 additions and 1 deletions
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3
tools/perf/Documentation/perf-record.txt
View file

@ -293,6 +293,9 @@ OPTIONS
--phys-data::
Record the sample physical addresses.
--data-page-size::
Record the sampled data address data page size.
-T::
--timestamp::
Record the sample timestamps. Use it with 'perf report -D' to see the

2
tools/perf/builtin-record.c
View file

@ -2472,6 +2472,8 @@ static struct option __record_options[] = {
OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"),
OPT_BOOLEAN(0, "phys-data", &record.opts.sample_phys_addr,
"Record the sample physical addresses"),
OPT_BOOLEAN(0, "data-page-size", &record.opts.sample_data_page_size,
"Record the sampled data address data page size"),
OPT_BOOLEAN(0, "sample-cpu", &record.opts.sample_cpu, "Record the sample cpu"),
OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time,
&record.opts.sample_time_set,

1
tools/perf/util/event.h
View file

@ -135,6 +135,7 @@ struct perf_sample {
u32 raw_size;
u64 data_src;
u64 phys_addr;
u64 data_page_size;
u64 cgroup;
u32 flags;
u16 insn_len;

9
tools/perf/util/evsel.c
View file

@ -1188,6 +1188,9 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts,
evsel__set_sample_bit(evsel, CGROUP);
}
if (opts->sample_data_page_size)
evsel__set_sample_bit(evsel, DATA_PAGE_SIZE);
if (opts->record_switch_events)
attr->context_switch = track;
@ -2355,6 +2358,12 @@ int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
array++;
}
data->data_page_size = 0;
if (type & PERF_SAMPLE_DATA_PAGE_SIZE) {
data->data_page_size = *array;
array++;
}
if (type & PERF_SAMPLE_AUX) {
OVERFLOW_CHECK_u64(array);
sz = *array++;

2
tools/perf/util/perf_event_attr_fprintf.c
View file

@ -35,7 +35,7 @@ static void __p_sample_type(char *buf, size_t size, u64 value)
bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC),
bit_name(WEIGHT), bit_name(PHYS_ADDR), bit_name(AUX),
bit_name(CGROUP),
bit_name(CGROUP), bit_name(DATA_PAGE_SIZE),
{ .name = NULL, }
};
#undef bit_name

1
tools/perf/util/record.h
View file

@ -22,6 +22,7 @@ struct record_opts {
bool raw_samples;
bool sample_address;
bool sample_phys_addr;
bool sample_data_page_size;
bool sample_weight;
bool sample_time;
bool sample_time_set;

8
tools/perf/util/synthetic-events.c
View file

@ -1409,6 +1409,9 @@ size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
if (type & PERF_SAMPLE_CGROUP)
result += sizeof(u64);
if (type & PERF_SAMPLE_DATA_PAGE_SIZE)
result += sizeof(u64);
if (type & PERF_SAMPLE_AUX) {
result += sizeof(u64);
result += sample->aux_sample.size;
@ -1588,6 +1591,11 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type, u64 read_fo
array++;
}
if (type & PERF_SAMPLE_DATA_PAGE_SIZE) {
*array = sample->data_page_size;
array++;
}
if (type & PERF_SAMPLE_AUX) {
sz = sample->aux_sample.size;
*array++ = sz;