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performance comparison

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This commit is contained in:
Alexander Kuzmenkov 2020-04-29 12:28:12 +03:00
parent a9d63d4520
commit a5911277b0
1 changed files with 13 additions and 5 deletions
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18
docker/test/performance-comparison/perf.py
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@ -141,17 +141,25 @@ test_queries = substitute_parameters(test_query_templates)
report_stage_end('substitute2')
for q in test_queries:
for i, q in enumerate(test_queries):
# We have some crazy long queries (about 100kB), so trim them to a sane
# length.
query_display_name = q
if len(query_display_name) > 1000:
query_display_name = f'{query_display_name[:1000]}...({i})'
# Prewarm: run once on both servers. Helps to bring the data into memory,
# precompile the queries, etc.
try:
for conn_index, c in enumerate(connections):
res = c.execute(q, query_id = 'prewarm {} {}'.format(0, q))
print('prewarm\t' + tsv_escape(q) + '\t' + str(conn_index) + '\t' + str(c.last_query.elapsed))
res = c.execute(q, query_id = f'prewarm {0} {query_display_name}')
print(f'prewarm\t{tsv_escape(query_display_name)}\t{conn_index}\t{c.last_query.elapsed}')
except:
# If prewarm fails for some query -- skip it, and try to test the others.
# This might happen if the new test introduces some function that the
# old server doesn't support. Still, report it as an error.
# FIXME the driver reconnects on error and we lose settings, so this might
# lead to further errors or unexpected behavior.
print(traceback.format_exc(), file=sys.stderr)
continue
@ -164,11 +172,11 @@ for q in test_queries:
for run in range(0, args.runs):
for conn_index, c in enumerate(connections):
res = c.execute(q)
print('query\t' + tsv_escape(q) + '\t' + str(run) + '\t' + str(conn_index) + '\t' + str(c.last_query.elapsed))
print(f'query\t{tsv_escape(query_display_name)}\t{run}\t{conn_index}\t{c.last_query.elapsed}')
server_seconds += c.last_query.elapsed
client_seconds = time.perf_counter() - start_seconds
print('client-time\t{}\t{}\t{}'.format(tsv_escape(q), client_seconds, server_seconds))
print(f'client-time\t{tsv_escape(query_display_name)}\t{client_seconds}\t{server_seconds}')
report_stage_end('benchmark')