#!/bin/bash set -exu set -o pipefail trap "exit" INT TERM # The watchdog is in the separate process group, so we have to kill it separately # if the script terminates earlier. trap 'kill $(jobs -pr) ${watchdog_pid:-} ||:' EXIT stage=${stage:-} script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )" # upstream/master LEFT_SERVER_PORT=9001 # patched version RIGHT_SERVER_PORT=9002 function wait_for_server # port, pid { for _ in {1..60} do if clickhouse-client --port "$1" --query "select 1" || ! kill -0 "$2" then break fi sleep 1 done if ! clickhouse-client --port "$1" --query "select 1" then echo "Cannot connect to ClickHouse server at $1" return 1 fi if ! kill -0 "$2" then echo "Server pid '$2' is not running" return 1 fi } function left_or_right() { local from=$1 && shift local basename=$1 && shift if [ -e "$from/$basename" ]; then echo "$from/$basename" return fi case "$from" in left) echo "right/$basename" ;; right) echo "left/$basename" ;; esac } function configure { # Use the new config for both servers, so that we can change it in a PR. rm right/config/config.d/text_log.xml ||: cp -rv right/config left ||: # Start a temporary server to rename the tables while killall clickhouse-server; do echo . ; sleep 1 ; done echo all killed set -m # Spawn temporary in its own process groups local setup_left_server_opts=( # server options --config-file=left/config/config.xml -- # server *config* directives overrides --path db0 --user_files_path db0/user_files --top_level_domains_path "$(left_or_right right top_level_domains)" --tcp_port $LEFT_SERVER_PORT ) left/clickhouse-server "${setup_left_server_opts[@]}" &> setup-server-log.log & left_pid=$! kill -0 $left_pid disown $left_pid set +m wait_for_server $LEFT_SERVER_PORT $left_pid echo Server for setup started clickhouse-client --port $LEFT_SERVER_PORT --query "create database test" ||: clickhouse-client --port $LEFT_SERVER_PORT --query "rename table datasets.hits_v1 to test.hits" ||: while killall clickhouse-server; do echo . ; sleep 1 ; done echo all killed # Make copies of the original db for both servers. Use hardlinks instead # of copying to save space. Before that, remove preprocessed configs and # system tables, because sharing them between servers with hardlinks may # lead to weird effects. rm -r left/db ||: rm -r right/db ||: rm -r db0/preprocessed_configs ||: rm -r db0/{data,metadata}/system ||: rm db0/status ||: cp -al db0/ left/db/ cp -al db0/ right/db/ } function restart { while killall clickhouse-server; do echo . ; sleep 1 ; done echo all killed # Change the jemalloc settings here. # https://github.com/jemalloc/jemalloc/wiki/Getting-Started export MALLOC_CONF="confirm_conf:true" set -m # Spawn servers in their own process groups local left_server_opts=( # server options --config-file=left/config/config.xml -- # server *config* directives overrides --path left/db --user_files_path left/db/user_files --top_level_domains_path "$(left_or_right left top_level_domains)" --tcp_port $LEFT_SERVER_PORT ) left/clickhouse-server "${left_server_opts[@]}" &>> left-server-log.log & left_pid=$! kill -0 $left_pid disown $left_pid local right_server_opts=( # server options --config-file=right/config/config.xml -- # server *config* directives overrides --path right/db --user_files_path right/db/user_files --top_level_domains_path "$(left_or_right right top_level_domains)" --tcp_port $RIGHT_SERVER_PORT ) right/clickhouse-server "${right_server_opts[@]}" &>> right-server-log.log & right_pid=$! kill -0 $right_pid disown $right_pid set +m unset MALLOC_CONF wait_for_server $LEFT_SERVER_PORT $left_pid echo left ok wait_for_server $RIGHT_SERVER_PORT $right_pid echo right ok clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.tables where database != 'system'" clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.build_options" clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.tables where database != 'system'" clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.build_options" # Check again that both servers we started are running -- this is important # for running locally, when there might be some other servers started and we # will connect to them instead. kill -0 $left_pid kill -0 $right_pid } function run_tests { # Just check that the script runs at all "$script_dir/perf.py" --help > /dev/null # Find the directory with test files. if [ -v CHPC_TEST_PATH ] then # Use the explicitly set path to directory with test files. test_prefix="$CHPC_TEST_PATH" elif [ "$PR_TO_TEST" == "0" ] then # When testing commits from master, use the older test files. This # allows the tests to pass even when we add new functions and tests for # them, that are not supported in the old revision. test_prefix=left/performance else # For PRs, use newer test files so we can test these changes. test_prefix=right/performance fi # Determine which tests to run. if [ -v CHPC_TEST_GREP ] then # Run only explicitly specified tests, if any. # shellcheck disable=SC2010 test_files=$(ls "$test_prefix" | grep "$CHPC_TEST_GREP" | xargs -I{} -n1 readlink -f "$test_prefix/{}") elif [ "$PR_TO_TEST" -ne 0 ] \ && [ "$(wc -l < changed-test-definitions.txt)" -gt 0 ] \ && [ "$(wc -l < changed-test-scripts.txt)" -eq 0 ] \ && [ "$(wc -l < other-changed-files.txt)" -eq 0 ] then # If only the perf tests were changed in the PR, we will run only these # tests. The lists of changed files are prepared in entrypoint.sh because # it has the repository. test_files=$(sed "s/tests\/performance/${test_prefix//\//\\/}/" changed-test-definitions.txt) else # The default -- run all tests found in the test dir. test_files=$(ls "$test_prefix"/*.xml) fi # For PRs w/o changes in test definitons and scripts, test only a subset of # queries, and run them less times. If the corresponding environment variables # are already set, keep those values. if [ "$PR_TO_TEST" -ne 0 ] \ && [ "$(wc -l < changed-test-definitions.txt)" -eq 0 ] \ && [ "$(wc -l < changed-test-scripts.txt)" -eq 0 ] then CHPC_RUNS=${CHPC_RUNS:-7} CHPC_MAX_QUERIES=${CHPC_MAX_QUERIES:-20} else CHPC_RUNS=${CHPC_RUNS:-13} CHPC_MAX_QUERIES=${CHPC_MAX_QUERIES:-0} fi export CHPC_RUNS export CHPC_MAX_QUERIES # Determine which concurrent benchmarks to run. For now, the only test # we run as a concurrent benchmark is 'website'. Run it as benchmark if we # are also going to run it as a normal test. for test in $test_files; do echo "$test"; done | sed -n '/website/p' > benchmarks-to-run.txt # Delete old report files. for x in {test-times,wall-clock-times}.tsv do rm -v "$x" ||: touch "$x" done # Randomize test order. test_files=$(for f in $test_files; do echo "$f"; done | sort -R) # Limit profiling time to 10 minutes, not to run for too long. profile_seconds_left=600 # Run the tests. test_name="" for test in $test_files do # Check that both servers are alive, and restart them if they die. clickhouse-client --port $LEFT_SERVER_PORT --query "select 1 format Null" \ || { echo $test_name >> left-server-died.log ; restart ; } clickhouse-client --port $RIGHT_SERVER_PORT --query "select 1 format Null" \ || { echo $test_name >> right-server-died.log ; restart ; } test_name=$(basename "$test" ".xml") echo test "$test_name" # Don't profile if we're past the time limit. # Use awk because bash doesn't support floating point arithmetic. profile_seconds=$(awk "BEGIN { print ($profile_seconds_left > 0 ? 10 : 0) }") TIMEFORMAT=$(printf "$test_name\t%%3R\t%%3U\t%%3S\n") # The grep is to filter out set -x output and keep only time output. # The '2>&1 >/dev/null' redirects stderr to stdout, and discards stdout. { \ time "$script_dir/perf.py" --host localhost localhost --port $LEFT_SERVER_PORT $RIGHT_SERVER_PORT \ --runs "$CHPC_RUNS" --max-queries "$CHPC_MAX_QUERIES" \ --profile-seconds "$profile_seconds" \ -- "$test" > "$test_name-raw.tsv" 2> "$test_name-err.log" ; \ } 2>&1 >/dev/null | tee >(grep -v ^+ >> "wall-clock-times.tsv") \ || echo "Test $test_name failed with error code $?" >> "$test_name-err.log" profile_seconds_left=$(awk -F' ' \ 'BEGIN { s = '$profile_seconds_left'; } /^profile-total/ { s -= $2 } END { print s }' \ "$test_name-raw.tsv") done unset TIMEFORMAT wait } function get_profiles_watchdog { sleep 600 echo "The trace collection did not finish in time." >> profile-errors.log for pid in $(pgrep -f clickhouse) do gdb -p "$pid" --batch --ex "info proc all" --ex "thread apply all bt" --ex quit &> "$pid.gdb.log" & done wait for _ in {1..10} do if ! pkill -f clickhouse then break fi sleep 1 done } function get_profiles { # Collect the profiles clickhouse-client --port $LEFT_SERVER_PORT --query "set query_profiler_cpu_time_period_ns = 0" clickhouse-client --port $LEFT_SERVER_PORT --query "set query_profiler_real_time_period_ns = 0" clickhouse-client --port $LEFT_SERVER_PORT --query "system flush logs" & clickhouse-client --port $RIGHT_SERVER_PORT --query "set query_profiler_cpu_time_period_ns = 0" clickhouse-client --port $RIGHT_SERVER_PORT --query "set query_profiler_real_time_period_ns = 0" clickhouse-client --port $RIGHT_SERVER_PORT --query "system flush logs" & wait clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.query_log where type = 2 format TSVWithNamesAndTypes" > left-query-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.query_thread_log format TSVWithNamesAndTypes" > left-query-thread-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.trace_log format TSVWithNamesAndTypes" > left-trace-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select arrayJoin(trace) addr, concat(splitByChar('/', addressToLine(addr))[-1], '#', demangle(addressToSymbol(addr)) ) name from system.trace_log group by addr format TSVWithNamesAndTypes" > left-addresses.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.metric_log format TSVWithNamesAndTypes" > left-metric-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.asynchronous_metric_log format TSVWithNamesAndTypes" > left-async-metric-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.query_log where type = 2 format TSVWithNamesAndTypes" > right-query-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.query_thread_log format TSVWithNamesAndTypes" > right-query-thread-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.trace_log format TSVWithNamesAndTypes" > right-trace-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select arrayJoin(trace) addr, concat(splitByChar('/', addressToLine(addr))[-1], '#', demangle(addressToSymbol(addr)) ) name from system.trace_log group by addr format TSVWithNamesAndTypes" > right-addresses.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.metric_log format TSVWithNamesAndTypes" > right-metric-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.asynchronous_metric_log format TSVWithNamesAndTypes" > right-async-metric-log.tsv ||: & wait # Just check that the servers are alive so that we return a proper exit code. # We don't consistently check the return codes of the above background jobs. clickhouse-client --port $LEFT_SERVER_PORT --query "select 1" clickhouse-client --port $RIGHT_SERVER_PORT --query "select 1" } function build_log_column_definitions { # FIXME This loop builds column definitons from TSVWithNamesAndTypes in an # absolutely atrocious way. This should be done by the file() function itself. for x in {right,left}-{addresses,{query,query-thread,trace,{async-,}metric}-log}.tsv do paste -d' ' \ <(sed -n '1{s/\t/\n/g;p;q}' "$x" | sed 's/\(^.*$\)/"\1"/') \ <(sed -n '2{s/\t/\n/g;p;q}' "$x" ) \ | tr '\n' ', ' | sed 's/,$//' > "$x.columns" done } # Build and analyze randomization distribution for all queries. function analyze_queries { rm -v analyze-commands.txt analyze-errors.log all-queries.tsv unstable-queries.tsv ./*-report.tsv raw-queries.tsv ||: rm -rf analyze ||: mkdir analyze analyze/tmp ||: build_log_column_definitions # Split the raw test output into files suitable for analysis. # To debug calculations only for a particular test, substitute a suitable # wildcard here, e.g. `for test_file in modulo-raw.tsv`. for test_file in *-raw.tsv do test_name=$(basename "$test_file" "-raw.tsv") sed -n "s/^query\t/$test_name\t/p" < "$test_file" >> "analyze/query-runs.tsv" sed -n "s/^profile\t/$test_name\t/p" < "$test_file" >> "analyze/query-profiles.tsv" sed -n "s/^client-time\t/$test_name\t/p" < "$test_file" >> "analyze/client-times.tsv" sed -n "s/^report-threshold\t/$test_name\t/p" < "$test_file" >> "analyze/report-thresholds.tsv" sed -n "s/^skipped\t/$test_name\t/p" < "$test_file" >> "analyze/skipped-tests.tsv" sed -n "s/^display-name\t/$test_name\t/p" < "$test_file" >> "analyze/query-display-names.tsv" sed -n "s/^short\t/$test_name\t/p" < "$test_file" >> "analyze/marked-short-queries.tsv" sed -n "s/^partial\t/$test_name\t/p" < "$test_file" >> "analyze/partial-queries.tsv" done # for each query run, prepare array of metrics from query log clickhouse-local --query " create view query_runs as select * from file('analyze/query-runs.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float'); -- Separately process 'partial' queries which we could only run on the new server -- because they use new functions. We can't make normal stats for them, but still -- have to show some stats so that the PR author can tweak them. create view partial_queries as select test, query_index from file('analyze/partial-queries.tsv', TSV, 'test text, query_index int, servers Array(int)'); create table partial_query_times engine File(TSVWithNamesAndTypes, 'analyze/partial-query-times.tsv') as select test, query_index, stddevPop(time) time_stddev, median(time) time_median from query_runs where (test, query_index) in partial_queries group by test, query_index ; -- Process queries that were run normally, on both servers. create view left_query_log as select * from file('left-query-log.tsv', TSVWithNamesAndTypes, '$(cat "left-query-log.tsv.columns")'); create view right_query_log as select * from file('right-query-log.tsv', TSVWithNamesAndTypes, '$(cat "right-query-log.tsv.columns")'); create view query_logs as select 0 version, query_id, ProfileEvents.Names, ProfileEvents.Values, query_duration_ms, memory_usage from left_query_log union all select 1 version, query_id, ProfileEvents.Names, ProfileEvents.Values, query_duration_ms, memory_usage from right_query_log ; -- This is a single source of truth on all metrics we have for query runs. The -- metrics include ProfileEvents from system.query_log, and query run times -- reported by the perf.py test runner. create table query_run_metric_arrays engine File(TSV, 'analyze/query-run-metric-arrays.tsv') as with ( -- sumMapState with the list of all keys with '-0.' values. Negative zero is because -- sumMap removes keys with positive zeros. with (select groupUniqArrayArray(ProfileEvents.Names) from query_logs) as all_names select arrayReduce('sumMapState', [(all_names, arrayMap(x->-0., all_names))]) ) as all_metrics select test, query_index, version, query_id, (finalizeAggregation( arrayReduce('sumMapMergeState', [ all_metrics, arrayReduce('sumMapState', [(ProfileEvents.Names, arrayMap(x->toFloat64(x), ProfileEvents.Values))] ), arrayReduce('sumMapState', [( ['client_time', 'server_time', 'memory_usage'], arrayMap(x->if(x != 0., x, -0.), [ toFloat64(query_runs.time), toFloat64(query_duration_ms / 1000.), toFloat64(memory_usage)]))]) ] )) as metrics_tuple).1 metric_names, metrics_tuple.2 metric_values from query_logs right join query_runs on query_logs.query_id = query_runs.query_id and query_logs.version = query_runs.version where (test, query_index) not in partial_queries ; -- This is just for convenience -- human-readable + easy to make plots. create table query_run_metrics_denorm engine File(TSV, 'analyze/query-run-metrics-denorm.tsv') as select test, query_index, metric_names, version, query_id, metric_values from query_run_metric_arrays array join metric_names, metric_values order by test, query_index, metric_names, version, query_id ; -- Filter out tests that don't have an even number of runs, to avoid breaking -- the further calculations. This may happen if there was an error during the -- test runs, e.g. the server died. It will be reported in test errors, so we -- don't have to report it again. create view broken_queries as select test, query_index from query_runs group by test, query_index having count(*) % 2 != 0 ; -- This is for statistical processing with eqmed.sql create table query_run_metrics_for_stats engine File( TSV, -- do not add header -- will parse with grep 'analyze/query-run-metrics-for-stats.tsv') as select test, query_index, 0 run, version, -- For debugging, add a filter for a particular metric like this: -- arrayFilter(m, n -> n = 'client_time', metric_values, metric_names) -- metric_values -- Note that further reporting may break, because the metric names are -- not filtered. metric_values from query_run_metric_arrays where (test, query_index) not in broken_queries order by test, query_index, run, version ; -- This is the list of metric names, so that we can join them back after -- statistical processing. create table query_run_metric_names engine File(TSV, 'analyze/query-run-metric-names.tsv') as select metric_names from query_run_metric_arrays limit 1 ; " 2> >(tee -a analyze/errors.log 1>&2) # This is a lateral join in bash... please forgive me. # We don't have arrayPermute(), so I have to make random permutations with # `order by rand`, and it becomes really slow if I do it for more than one # query. We also don't have lateral joins. So I just put all runs of each # query into a separate file, and then compute randomization distribution # for each file. I do this in parallel using GNU parallel. ( set +x # do not bloat the log IFS=$'\n' for prefix in $(cut -f1,2 "analyze/query-run-metrics-for-stats.tsv" | sort | uniq) do file="analyze/tmp/${prefix// /_}.tsv" grep "^$prefix " "analyze/query-run-metrics-for-stats.tsv" > "$file" & printf "%s\0\n" \ "clickhouse-local \ --file \"$file\" \ --structure 'test text, query text, run int, version UInt8, metrics Array(float)' \ --query \"$(cat "$script_dir/eqmed.sql")\" \ >> \"analyze/query-metric-stats.tsv\"" \ 2>> analyze/errors.log \ >> analyze/commands.txt done wait unset IFS ) # The comparison script might be bound to one NUMA node for better test # stability, and the calculation runs out of memory because of this. Use # all nodes. numactl --show numactl --cpunodebind=all --membind=all numactl --show numactl --cpunodebind=all --membind=all parallel --joblog analyze/parallel-log.txt --null < analyze/commands.txt 2>> analyze/errors.log clickhouse-local --query " -- Join the metric names back to the metric statistics we've calculated, and make -- a denormalized table of them -- statistics for all metrics for all queries. -- The WITH, ARRAY JOIN and CROSS JOIN do not like each other: -- https://github.com/ClickHouse/ClickHouse/issues/11868 -- https://github.com/ClickHouse/ClickHouse/issues/11757 -- Because of this, we make a view with arrays first, and then apply all the -- array joins. create view query_metric_stat_arrays as with (select * from file('analyze/query-run-metric-names.tsv', TSV, 'n Array(String)')) as metric_name select test, query_index, metric_name, left, right, diff, stat_threshold from file('analyze/query-metric-stats.tsv', TSV, 'left Array(float), right Array(float), diff Array(float), stat_threshold Array(float), test text, query_index int') reports order by test, query_index, metric_name ; create table query_metric_stats_denorm engine File(TSVWithNamesAndTypes, 'analyze/query-metric-stats-denorm.tsv') as select test, query_index, metric_name, left, right, diff, stat_threshold from query_metric_stat_arrays left array join metric_name, left, right, diff, stat_threshold order by test, query_index, metric_name ; " 2> >(tee -a analyze/errors.log 1>&2) } # Analyze results function report { rm -r report ||: mkdir report report/tmp ||: rm ./*.{rep,svg} test-times.tsv test-dump.tsv unstable.tsv unstable-query-ids.tsv unstable-query-metrics.tsv changed-perf.tsv unstable-tests.tsv unstable-queries.tsv bad-tests.tsv slow-on-client.tsv all-queries.tsv run-errors.tsv ||: build_log_column_definitions cat analyze/errors.log >> report/errors.log ||: cat profile-errors.log >> report/errors.log ||: clickhouse-local --query " create view query_display_names as select * from file('analyze/query-display-names.tsv', TSV, 'test text, query_index int, query_display_name text') ; create view partial_query_times as select * from file('analyze/partial-query-times.tsv', TSVWithNamesAndTypes, 'test text, query_index int, time_stddev float, time_median float') ; -- Report for partial queries that we could only run on the new server (e.g. -- queries with new functions added in the tested PR). create table partial_queries_report engine File(TSV, 'report/partial-queries-report.tsv') as select toDecimal64(time_median, 3) time, toDecimal64(time_stddev / time_median, 3) relative_time_stddev, test, query_index, query_display_name from partial_query_times join query_display_names using (test, query_index) order by test, query_index ; create view query_metric_stats as select * from file('analyze/query-metric-stats-denorm.tsv', TSVWithNamesAndTypes, 'test text, query_index int, metric_name text, left float, right float, diff float, stat_threshold float') ; -- Main statistics for queries -- query time as reported in query log. create table queries engine File(TSVWithNamesAndTypes, 'report/queries.tsv') as select -- It is important to have a non-strict inequality with stat_threshold -- here. The randomization distribution is actually discrete, and when -- the number of runs is small, the quantile we need (e.g. 0.99) turns -- out to be the maximum value of the distribution. We can also hit this -- maximum possible value with our test run, and this obviously means -- that we have observed the difference to the best precision possible -- for the given number of runs. If we use a strict equality here, we -- will miss such cases. This happened in the wild and lead to some -- uncaught regressions, because for the default 7 runs we do for PRs, -- the randomization distribution has only 16 values, so the max quantile -- is actually 0.9375. abs(diff) > report_threshold and abs(diff) >= stat_threshold as changed_fail, abs(diff) > report_threshold - 0.05 and abs(diff) >= stat_threshold as changed_show, not changed_fail and stat_threshold > report_threshold + 0.10 as unstable_fail, not changed_show and stat_threshold > report_threshold - 0.05 as unstable_show, left, right, diff, stat_threshold, if(report_threshold > 0, report_threshold, 0.10) as report_threshold, query_metric_stats.test test, query_metric_stats.query_index query_index, query_display_name from query_metric_stats left join file('analyze/report-thresholds.tsv', TSV, 'test text, report_threshold float') thresholds on query_metric_stats.test = thresholds.test left join query_display_names on query_metric_stats.test = query_display_names.test and query_metric_stats.query_index = query_display_names.query_index -- 'server_time' is rounded down to ms, which might be bad for very short queries. -- Use 'client_time' instead. where metric_name = 'client_time' order by test, query_index, metric_name ; create table changed_perf_report engine File(TSV, 'report/changed-perf.tsv') as with -- server_time is sometimes reported as zero (if it's less than 1 ms), -- so we have to work around this to not get an error about conversion -- of NaN to decimal. (left > right ? left / right : right / left) as times_change_float, isFinite(times_change_float) as times_change_finite, toDecimal64(times_change_finite ? times_change_float : 1., 3) as times_change_decimal, times_change_finite ? (left > right ? '-' : '+') || toString(times_change_decimal) || 'x' : '--' as times_change_str select toDecimal64(left, 3), toDecimal64(right, 3), times_change_str, toDecimal64(diff, 3), toDecimal64(stat_threshold, 3), changed_fail, test, query_index, query_display_name from queries where changed_show order by abs(diff) desc; create table unstable_queries_report engine File(TSV, 'report/unstable-queries.tsv') as select toDecimal64(left, 3), toDecimal64(right, 3), toDecimal64(diff, 3), toDecimal64(stat_threshold, 3), unstable_fail, test, query_index, query_display_name from queries where unstable_show order by stat_threshold desc; create view test_speedup as select test, exp2(avg(log2(left / right))) times_speedup, count(*) queries, unstable + changed bad, sum(changed_show) changed, sum(unstable_show) unstable from queries group by test order by times_speedup desc ; create view total_speedup as select 'Total' test, exp2(avg(log2(times_speedup))) times_speedup, sum(queries) queries, unstable + changed bad, sum(changed) changed, sum(unstable) unstable from test_speedup ; create table test_perf_changes_report engine File(TSV, 'report/test-perf-changes.tsv') as with (times_speedup >= 1 ? '-' || toString(toDecimal64(times_speedup, 3)) || 'x' : '+' || toString(toDecimal64(1 / times_speedup, 3)) || 'x') as times_speedup_str select test, times_speedup_str, queries, bad, changed, unstable -- Not sure what's the precedence of UNION ALL vs WHERE & ORDER BY, hence all -- the braces. from ( ( select * from total_speedup ) union all ( select * from test_speedup where (times_speedup >= 1 ? times_speedup : (1 / times_speedup)) >= 1.005 or bad ) ) order by test = 'Total' desc, times_speedup desc ; create view total_client_time_per_query as select * from file('analyze/client-times.tsv', TSV, 'test text, query_index int, client float, server float'); create table slow_on_client_report engine File(TSV, 'report/slow-on-client.tsv') as select client, server, toDecimal64(client/server, 3) p, test, query_display_name from total_client_time_per_query left join query_display_names using (test, query_index) where p > toDecimal64(1.02, 3) order by p desc; create table wall_clock_time_per_test engine Memory as select * from file('wall-clock-times.tsv', TSV, 'test text, real float, user float, system float'); create table test_time engine Memory as select test, sum(client) total_client_time, max(client) query_max, min(client) query_min, count(*) queries from total_client_time_per_query full join queries using (test, query_index) group by test; create view query_runs as select * from file('analyze/query-runs.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float'); -- -- Guess the number of query runs used for this test. The number is required to -- calculate and check the average query run time in the report. -- We have to be careful, because we will encounter: -- 1) partial queries which run only on one server -- 2) short queries which run for a much higher number of times -- 3) some errors that make query run for a different number of times on a -- particular server. -- create view test_runs as select test, -- Default to 7 runs if there are only 'short' queries in the test, and -- we can't determine the number of runs. if((ceil(medianOrDefaultIf(t.runs, not short), 0) as r) != 0, r, 7) runs from ( select -- The query id is the same for both servers, so no need to divide here. uniqExact(query_id) runs, (test, query_index) in (select * from file('analyze/marked-short-queries.tsv', TSV, 'test text, query_index int')) as short, test, query_index from query_runs group by test, query_index ) t group by test ; create view test_times_view as select wall_clock_time_per_test.test test, real, total_client_time, queries, query_max, real / if(queries > 0, queries, 1) avg_real_per_query, query_min, runs from test_time -- wall clock times are also measured for skipped tests, so don't -- do full join left join wall_clock_time_per_test on wall_clock_time_per_test.test = test_time.test full join test_runs on test_runs.test = test_time.test ; -- WITH TOTALS doesn't work with INSERT SELECT, so we have to jump through these -- hoops: https://github.com/ClickHouse/ClickHouse/issues/15227 create view test_times_view_total as select 'Total' test, sum(real), sum(total_client_time), sum(queries), max(query_max), sum(real) / if(sum(queries) > 0, sum(queries), 1) avg_real_per_query, min(query_min), -- Totaling the number of runs doesn't make sense, but use the max so -- that the reporting script doesn't complain about queries being too -- long. max(runs) from test_times_view ; create table test_times_report engine File(TSV, 'report/test-times.tsv') as select test, toDecimal64(real, 3), toDecimal64(total_client_time, 3), queries, toDecimal64(query_max, 3), toDecimal64(avg_real_per_query, 3), toDecimal64(query_min, 3), runs from ( select * from test_times_view union all select * from test_times_view_total ) order by test = 'Total' desc, avg_real_per_query desc ; -- report for all queries page, only main metric create table all_tests_report engine File(TSV, 'report/all-queries.tsv') as with -- server_time is sometimes reported as zero (if it's less than 1 ms), -- so we have to work around this to not get an error about conversion -- of NaN to decimal. (left > right ? left / right : right / left) as times_change_float, isFinite(times_change_float) as times_change_finite, toDecimal64(times_change_finite ? times_change_float : 1., 3) as times_change_decimal, times_change_finite ? (left > right ? '-' : '+') || toString(times_change_decimal) || 'x' : '--' as times_change_str select changed_fail, unstable_fail, toDecimal64(left, 3), toDecimal64(right, 3), times_change_str, toDecimal64(isFinite(diff) ? diff : 0, 3), toDecimal64(isFinite(stat_threshold) ? stat_threshold : 0, 3), test, query_index, query_display_name from queries order by test, query_index; -- Report of queries that have inconsistent 'short' markings: -- 1) have short duration, but are not marked as 'short' -- 2) the reverse -- marked 'short' but take too long. -- The threshold for 2) is significantly larger than the threshold for 1), to -- avoid jitter. create view shortness as select (test, query_index) in (select * from file('analyze/marked-short-queries.tsv', TSV, 'test text, query_index int')) as marked_short, time, test, query_index, query_display_name from ( select right time, test, query_index from queries union all select time_median, test, query_index from partial_query_times ) times left join query_display_names on times.test = query_display_names.test and times.query_index = query_display_names.query_index ; create table inconsistent_short_marking_report engine File(TSV, 'report/unexpected-query-duration.tsv') as select multiIf(marked_short and time > 0.1, '\"short\" queries must run faster than 0.02 s', not marked_short and time < 0.02, '\"normal\" queries must run longer than 0.1 s', '') problem, marked_short, time, test, query_index, query_display_name from shortness where problem != '' ; -------------------------------------------------------------------------------- -- various compatibility data formats follow, not related to the main report -- keep the table in old format so that we can analyze new and old data together create table queries_old_format engine File(TSVWithNamesAndTypes, 'queries.rep') as select 0 short, changed_fail, unstable_fail, left, right, diff, stat_threshold, test, query_display_name query from queries ; -- new report for all queries with all metrics (no page yet) create table all_query_metrics_tsv engine File(TSV, 'report/all-query-metrics.tsv') as select metric_name, left, right, diff, floor(left > right ? left / right : right / left, 3), stat_threshold, test, query_index, query_display_name from query_metric_stats left join query_display_names on query_metric_stats.test = query_display_names.test and query_metric_stats.query_index = query_display_names.query_index order by test, query_index; " 2> >(tee -a report/errors.log 1>&2) # Prepare source data for metrics and flamegraphs for queries that were profiled # by perf.py. for version in {right,left} do rm -rf data clickhouse-local --query " create view query_profiles as with 0 as left, 1 as right select * from file('analyze/query-profiles.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float') where version = $version ; create view query_display_names as select * from file('analyze/query-display-names.tsv', TSV, 'test text, query_index int, query_display_name text') ; create table unstable_query_runs engine File(TSVWithNamesAndTypes, 'unstable-query-runs.$version.rep') as select query_profiles.test test, query_profiles.query_index query_index, query_display_name, query_id from query_profiles left join query_display_names on query_profiles.test = query_display_names.test and query_profiles.query_index = query_display_names.query_index ; create view query_log as select * from file('$version-query-log.tsv', TSVWithNamesAndTypes, '$(cat "$version-query-log.tsv.columns")'); create table unstable_run_metrics engine File(TSVWithNamesAndTypes, 'unstable-run-metrics.$version.rep') as select test, query_index, query_id, ProfileEvents.Values value, ProfileEvents.Names metric from query_log array join ProfileEvents join unstable_query_runs using (query_id) ; create table unstable_run_metrics_2 engine File(TSVWithNamesAndTypes, 'unstable-run-metrics-2.$version.rep') as select test, query_index, query_id, v, n from ( select test, query_index, query_id, ['memory_usage', 'read_bytes', 'written_bytes', 'query_duration_ms'] n, [memory_usage, read_bytes, written_bytes, query_duration_ms] v from query_log join unstable_query_runs using (query_id) ) array join v, n; create view trace_log as select * from file('$version-trace-log.tsv', TSVWithNamesAndTypes, '$(cat "$version-trace-log.tsv.columns")'); create view addresses_src as select addr, -- Some functions change name between builds, e.g. '__clone' or 'clone' or -- even '__GI__clone@@GLIBC_2.32'. This breaks differential flame graphs, so -- filter them out here. [name, 'clone.S (filtered by script)', 'pthread_cond_timedwait (filtered by script)'] -- this line is a subscript operator of the above array [1 + multiSearchFirstIndex(name, ['clone.S', 'pthread_cond_timedwait'])] name from file('$version-addresses.tsv', TSVWithNamesAndTypes, '$(cat "$version-addresses.tsv.columns")'); create table addresses_join_$version engine Join(any, left, address) as select addr address, name from addresses_src; create table unstable_run_traces engine File(TSVWithNamesAndTypes, 'unstable-run-traces.$version.rep') as select test, query_index, query_id, count() value, joinGet(addresses_join_$version, 'name', arrayJoin(trace)) || '(' || toString(trace_type) || ')' metric from trace_log join unstable_query_runs using query_id group by test, query_index, query_id, metric order by count() desc ; create table metric_devation engine File(TSVWithNamesAndTypes, 'report/metric-deviation.$version.tsv') as -- first goes the key used to split the file with grep select test, query_index, query_display_name, toDecimal64(d, 3) d, q, metric from ( select test, query_index, (q[3] - q[1])/q[2] d, quantilesExact(0, 0.5, 1)(value) q, metric from (select * from unstable_run_metrics union all select * from unstable_run_traces union all select * from unstable_run_metrics_2) mm group by test, query_index, metric having isFinite(d) and d > 0.5 and q[3] > 5 ) metrics left join query_display_names using (test, query_index) order by test, query_index, d desc ; create table stacks engine File(TSV, 'report/stacks.$version.tsv') as select -- first goes the key used to split the file with grep test, query_index, trace_type, any(query_display_name), -- next go the stacks in flamegraph format: 'func1;...;funcN count' arrayStringConcat( arrayMap( addr -> joinGet(addresses_join_$version, 'name', addr), arrayReverse(trace) ), ';' ) readable_trace, count() c from trace_log join unstable_query_runs using query_id group by test, query_index, trace_type, trace order by test, query_index, trace_type, trace ; " 2> >(tee -a report/errors.log 1>&2) & done wait # Create per-query flamegraphs IFS=$'\n' for version in {right,left} do for query in $(cut -d' ' -f1-4 "report/stacks.$version.tsv" | sort | uniq) do query_file=$(echo "$query" | cut -c-120 | sed 's/[/ ]/_/g') echo "$query_file" >> report/query-files.txt # Build separate .svg flamegraph for each query. # -F is somewhat unsafe because it might match not the beginning of the # string, but this is unlikely and escaping the query for grep is a pain. grep -F "$query " "report/stacks.$version.tsv" \ | cut -f 5- \ | sed 's/\t/ /g' \ | tee "report/tmp/$query_file.stacks.$version.tsv" \ | ~/fg/flamegraph.pl --hash > "$query_file.$version.svg" & done done wait unset IFS # Create differential flamegraphs. while IFS= read -r query_file do ~/fg/difffolded.pl "report/tmp/$query_file.stacks.left.tsv" \ "report/tmp/$query_file.stacks.right.tsv" \ | tee "report/tmp/$query_file.stacks.diff.tsv" \ | ~/fg/flamegraph.pl > "$query_file.diff.svg" & done < report/query-files.txt wait # Create per-query files with metrics. Note that the key is different from flamegraphs. IFS=$'\n' for version in {right,left} do for query in $(cut -d' ' -f1-3 "report/metric-deviation.$version.tsv" | sort | uniq) do query_file=$(echo "$query" | cut -c-120 | sed 's/[/ ]/_/g') # Ditto the above comment about -F. grep -F "$query " "report/metric-deviation.$version.tsv" \ | cut -f4- > "$query_file.$version.metrics.rep" & done done wait unset IFS # Prefer to grep for clickhouse_driver exception messages, but if there are none, # just show a couple of lines from the log. for log in *-err.log do test=$(basename "$log" "-err.log") { # The second grep is a heuristic for error messages like # "socket.timeout: timed out". grep -h -m2 -i '\(Exception\|Error\):[^:]' "$log" \ || grep -h -m2 -i '^[^ ]\+: ' "$log" \ || head -2 "$log" } | sed "s/^/$test\t/" >> run-errors.tsv ||: done } function report_metrics { build_log_column_definitions rm -rf metrics ||: mkdir metrics clickhouse-local --query " create view right_async_metric_log as select * from file('right-async-metric-log.tsv', TSVWithNamesAndTypes, '$(cat right-async-metric-log.tsv.columns)') ; -- Use the right log as time reference because it may have higher precision. create table metrics engine File(TSV, 'metrics/metrics.tsv') as with (select min(event_time) from right_async_metric_log) as min_time select name metric, r.event_time - min_time event_time, l.value as left, r.value as right from right_async_metric_log r asof join file('left-async-metric-log.tsv', TSVWithNamesAndTypes, '$(cat left-async-metric-log.tsv.columns)') l on l.name = r.name and r.event_time <= l.event_time order by metric, event_time ; -- Show metrics that have changed create table changes engine File(TSV, 'metrics/changes.tsv') as select metric, left, right, toDecimal64(diff, 3), toDecimal64(times_diff, 3) from ( select metric, median(left) as left, median(right) as right, (right - left) / left diff, if(left > right, left / right, right / left) times_diff from metrics group by metric having abs(diff) > 0.05 and isFinite(diff) ) order by diff desc ; " 2> >(tee -a metrics/errors.log 1>&2) IFS=$'\n' for prefix in $(cut -f1 "metrics/metrics.tsv" | sort | uniq) do file="metrics/$prefix.tsv" grep "^$prefix " "metrics/metrics.tsv" | cut -f2- > "$file" gnuplot -e " set datafile separator '\t'; set terminal png size 960,540; set xtics time format '%tH:%tM'; set title '$prefix' noenhanced offset 0,-3; set key left top; plot '$file' using 1:2 with lines title 'Left' , '$file' using 1:3 with lines title 'Right' ; " \ | convert - -filter point -resize "200%" "metrics/$prefix.png" & done wait unset IFS } function upload_results { if ! [ -v CHPC_DATABASE_URL ] then echo Database for test results is not specified, will not upload them. return 0 fi # Surprisingly, clickhouse-client doesn't understand --host 127.0.0.1:9000 # so I have to extract host and port with clickhouse-local. I tried to use # Poco URI parser to support this in the client, but it's broken and can't # parse host:port. set +x # Don't show password in the log clickhouse-client \ $(clickhouse-local --query "with '${CHPC_DATABASE_URL}' as url select '--host ' || domain(url) || ' --port ' || toString(port(url)) format TSV") \ --secure \ --user "${CHPC_DATABASE_USER}" \ --password "${CHPC_DATABASE_PASSWORD}" \ --config "right/config/client_config.xml" \ --database perftest \ --date_time_input_format=best_effort \ --query " insert into query_metrics_v2 select toDate(event_time) event_date, toDateTime('$(cd right/ch && git show -s --format=%ci "$SHA_TO_TEST" | cut -d' ' -f-2)') event_time, $PR_TO_TEST pr_number, '$REF_SHA' old_sha, '$SHA_TO_TEST' new_sha, test, query_index, query_display_name, metric_name, old_value, new_value, diff, stat_threshold from input('metric_name text, old_value float, new_value float, diff float, ratio_display_text text, stat_threshold float, test text, query_index int, query_display_name text') settings date_time_input_format='best_effort' format TSV settings date_time_input_format='best_effort' " < report/all-query-metrics.tsv # Don't leave whitespace after INSERT: https://github.com/ClickHouse/ClickHouse/issues/16652 set -x } # Check that local and client are in PATH clickhouse-local --version > /dev/null clickhouse-client --version > /dev/null case "$stage" in "") ;& "configure") time configure ;& "restart") numactl --show ||: numactl --hardware ||: lscpu ||: dmidecode -t 4 ||: time restart ;& "run_tests") # Ignore the errors to collect the log and build at least some report, anyway time run_tests ||: ;& "get_profiles") # Check for huge pages. cat /sys/kernel/mm/transparent_hugepage/enabled > thp-enabled.txt ||: cat /proc/meminfo > meminfo.txt ||: for pid in $(pgrep -f clickhouse-server) do cat "/proc/$pid/smaps" > "$pid-smaps.txt" ||: done # We had a bug where getting profiles froze sometimes, so try to save some # logs if this happens again. Give the servers some time to collect all info, # then trace and kill. Start in a subshell, so that both function don't # interfere with each other's jobs through `wait`. Also make the subshell # have its own process group, so that we can then kill it with all its child # processes. Somehow it doesn't kill the children by itself when dying. set -m ( get_profiles_watchdog ) & watchdog_pid=$! set +m # Check that the watchdog started OK. kill -0 $watchdog_pid # If the tests fail with OOM or something, still try to restart the servers # to collect the logs. Prefer not to restart, because addresses might change # and we won't be able to process trace_log data. Start in a subshell, so that # it doesn't interfere with the watchdog through `wait`. ( get_profiles || { restart && get_profiles ; } ) ||: # Kill the whole process group, because somehow when the subshell is killed, # the sleep inside remains alive and orphaned. while env kill -- -$watchdog_pid ; do sleep 1; done # Stop the servers to free memory for the subsequent query analysis. while killall clickhouse; do echo . ; sleep 1 ; done echo Servers stopped. ;& "analyze_queries") time analyze_queries ||: ;& "report") time report ||: ;& "report_metrics") time report_metrics ||: cat metrics/errors.log >> report/errors.log ||: ;& "report_html") time "$script_dir/report.py" --report=all-queries > all-queries.html 2> >(tee -a report/errors.log 1>&2) ||: time "$script_dir/report.py" > report.html ;& "upload_results") time upload_results ||: ;& esac # Print some final debug info to help debug Weirdness, of which there is plenty. jobs pstree -apgT