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perf test: Add tests for latency and parallelism profiling

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Ensure basic operation of latency/parallelism profiling and that
main latency/parallelism record/report invocations don't fail/crash.

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/r/c129c8f02f328f68e1e9ef2cdc582f8a9786a97d.1739437531.git.dvyukov@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Dmitry Vyukov
2025-02-13 10:08:21 +01:00
committed by Namhyung Kim
parent 32ecca8d7a
commit 257facfaf5
2 changed files with 69 additions and 1 deletions
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52
tools/perf/tests/shell/base_report/test_basic.sh
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@@ -183,6 +183,58 @@ print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "symbol filter"
(( TEST_RESULT += $? ))
### latency and parallelism
# Record with --latency should record with context switches.
$CMD_PERF report -i $CURRENT_TEST_DIR/perf.data.1 --stdio --header-only > $LOGS_DIR/latency_header.log
PERF_EXIT_CODE=$?
../common/check_all_patterns_found.pl ", context_switch = 1, " < $LOGS_DIR/latency_header.log
CHECK_EXIT_CODE=$?
print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "latency header"
(( TEST_RESULT += $? ))
# The default report for latency profile should show Overhead and Latency fields (in that order).
$CMD_PERF report --stdio -i $CURRENT_TEST_DIR/perf.data.1 > $LOGS_DIR/latency_default.log 2> $LOGS_DIR/latency_default.err
PERF_EXIT_CODE=$?
../common/check_all_patterns_found.pl "# Overhead Latency Command" < $LOGS_DIR/latency_default.log
CHECK_EXIT_CODE=$?
../common/check_errors_whitelisted.pl "stderr-whitelist.txt" < $LOGS_DIR/latency_default.err
(( CHECK_EXIT_CODE += $? ))
print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "default report for latency profile"
(( TEST_RESULT += $? ))
# The latency report for latency profile should show Latency and Overhead fields (in that order).
$CMD_PERF report --latency --stdio -i $CURRENT_TEST_DIR/perf.data.1 > $LOGS_DIR/latency_latency.log 2> $LOGS_DIR/latency_latency.err
PERF_EXIT_CODE=$?
../common/check_all_patterns_found.pl "# Latency Overhead Command" < $LOGS_DIR/latency_latency.log
CHECK_EXIT_CODE=$?
../common/check_errors_whitelisted.pl "stderr-whitelist.txt" < $LOGS_DIR/latency_latency.err
(( CHECK_EXIT_CODE += $? ))
print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "latency report for latency profile"
(( TEST_RESULT += $? ))
# Ensure parallelism histogram with parallelism filter does not fail/crash.
$CMD_PERF report --hierarchy --sort latency,parallelism,comm,symbol --parallelism=1,2 --stdio -i $CURRENT_TEST_DIR/perf.data.1 > $LOGS_DIR/parallelism_hierarchy.log 2> $LOGS_DIR/parallelism_hierarchy.err
PERF_EXIT_CODE=$?
../common/check_all_patterns_found.pl "# Latency Parallelism / Command / Symbol" < $LOGS_DIR/parallelism_hierarchy.log
CHECK_EXIT_CODE=$?
../common/check_errors_whitelisted.pl "stderr-whitelist.txt" < $LOGS_DIR/parallelism_hierarchy.err
(( CHECK_EXIT_CODE += $? ))
print_results $PERF_EXIT_CODE $CHECK_EXIT_CODE "parallelism histogram"
(( TEST_RESULT += $? ))
# TODO: $CMD_PERF report -n --showcpuutilization -TUxDg 2> 01.log
# print overall results