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Measure peak memory usage in perf test.

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Another useful metric to keep an eye on.
This commit is contained in:
Heikki Linnakangas
2021-10-07 18:03:20 +03:00
parent fdb19fdb92
commit db4059cd6d
3 changed files with 23 additions and 2 deletions
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11
test_runner/fixtures/benchmark_fixture.py
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@@ -140,6 +140,17 @@ class ZenithBenchmarker:
re.MULTILINE)
return int(round(float(matches.group(1))))
def get_peak_mem(self, pageserver) -> int:
"""
Fetch the "maxrss" metric from the pageserver
"""
# Fetch all the exposed prometheus metrics from page server
all_metrics = pageserver.http_client().get_metrics()
# See comment in get_io_writes()
matches = re.search(r'^pageserver_maxrss_kb (\S+)$', all_metrics,
re.MULTILINE)
return int(round(float(matches.group(1))))
@contextmanager
def record_pageserver_writes(self, pageserver, metric_name):
"""