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Code Issues Releases Wiki Activity

collector/perf: run simpleperf report-sample in the target if requested

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If simpleperf record is called with "-f N", we may want to run
"simpleperf report-sample" on the output to dump the periodic
records.  Let the PerfCollector() run report-sample in the target,
similar to how we run report.
This commit is contained in:
Robert Freeman 2021-03-26 15:55:13 +00:00 committed by Marc Bonnici
parent 4859e818fb
commit fe2fe3ae04
1 changed files with 20 additions and 0 deletions
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20
devlib/collector/perf.py
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@ -26,6 +26,7 @@ from devlib.utils.misc import ensure_file_directory_exists as _f
PERF_STAT_COMMAND_TEMPLATE = '{binary} {command} {options} {events} {sleep_cmd} > {outfile} 2>&1 '
PERF_REPORT_COMMAND_TEMPLATE= '{binary} report {options} -i {datafile} > {outfile} 2>&1 '
PERF_REPORT_SAMPLE_COMMAND_TEMPLATE= '{binary} report-sample {options} -i {datafile} > {outfile} '
PERF_RECORD_COMMAND_TEMPLATE= '{binary} record {options} {events} -o {outfile}'
PERF_DEFAULT_EVENTS = [
@ -90,12 +91,16 @@ class PerfCollector(CollectorBase):
events=None,
optionstring=None,
report_options=None,
run_report_sample=False,
report_sample_options=None,
labels=None,
force_install=False):
super(PerfCollector, self).__init__(target)
self.force_install = force_install
self.labels = labels
self.report_options = report_options
self.run_report_sample = run_report_sample
self.report_sample_options = report_sample_options
self.output_path = None
# Validate parameters
@ -138,6 +143,8 @@ class PerfCollector(CollectorBase):
self.target.remove(filepath)
filepath = self._get_target_file(label, 'rpt')
self.target.remove(filepath)
filepath = self._get_target_file(label, 'rptsamples')
self.target.remove(filepath)
def start(self):
for command in self.commands:
@ -165,6 +172,9 @@ class PerfCollector(CollectorBase):
self._wait_for_data_file_write(label, self.output_path)
path = self._pull_target_file_to_host(label, 'rpt', self.output_path)
output.append(CollectorOutputEntry(path, 'file'))
if self.run_report_sample:
report_samples_path = self._pull_target_file_to_host(label, 'rptsamples', self.output_path)
output.append(CollectorOutputEntry(report_samples_path, 'file'))
else:
path = self._pull_target_file_to_host(label, 'out', self.output_path)
output.append(CollectorOutputEntry(path, 'file'))
@ -205,6 +215,13 @@ class PerfCollector(CollectorBase):
outfile=self._get_target_file(label, 'rpt'))
return command
def _build_perf_report_sample_command(self, label):
command = PERF_REPORT_SAMPLE_COMMAND_TEMPLATE.format(binary=self.binary,
options=self.report_sample_options or '',
datafile=self._get_target_file(label, 'data'),
outfile=self._get_target_file(label, 'rptsamples'))
return command
def _build_perf_record_command(self, options, label):
event_string = ' '.join(['-e {}'.format(e) for e in self.events])
command = PERF_RECORD_COMMAND_TEMPLATE.format(binary=self.binary,
@ -237,6 +254,9 @@ class PerfCollector(CollectorBase):
data_file_finished_writing = True
report_command = self._build_perf_report_command(self.report_options, label)
self.target.execute(report_command)
if self.run_report_sample:
report_sample_command = self._build_perf_report_sample_command(label)
self.target.execute(report_sample_command)
def _validate_events(self, events):
available_events_string = self.target.execute('{} list | {} cat'.format(self.perf_type, self.target.busybox))