diff options
Diffstat (limited to 'tools/tracing/rtla/tests/timerlat.t')
| -rw-r--r-- | tools/tracing/rtla/tests/timerlat.t | 125 |
1 files changed, 108 insertions, 17 deletions
diff --git a/tools/tracing/rtla/tests/timerlat.t b/tools/tracing/rtla/tests/timerlat.t index e86f40e5749e..8193048e8c8c 100644 --- a/tools/tracing/rtla/tests/timerlat.t +++ b/tools/tracing/rtla/tests/timerlat.t @@ -4,24 +4,115 @@ source tests/engine.sh test_begin set_timeout 2m +timerlat_sample_event='/sys/kernel/tracing/events/osnoise/timerlat_sample' +if ldd $RTLA | grep libbpf >/dev/null && [ -d "$timerlat_sample_event" ] +then + # rtla build with BPF and system supports BPF mode + no_bpf_options='0 1' +else + no_bpf_options='1' +fi + +# Do every test with and without BPF +for option in $no_bpf_options +do +export RTLA_NO_BPF=$option + +# Basic tests check "verify help page" \ - "timerlat --help" -check "verify -s/--stack" \ - "timerlat top -s 3 -T 10 -t" -check "verify -P/--priority" \ - "timerlat top -P F:1 -c 0 -d 1M -q" -check "test in nanoseconds" \ - "timerlat top -i 2 -c 0 -n -d 30s" -check "set the automatic trace mode" \ - "timerlat top -a 5 --dump-tasks" -check "print the auto-analysis if hits the stop tracing condition" \ - "timerlat top --aa-only 5" -check "disable auto-analysis" \ - "timerlat top -s 3 -T 10 -t --no-aa" -check "verify -c/--cpus" \ - "timerlat hist -c 0 -d 30s" -check "hist test in nanoseconds" \ - "timerlat hist -i 2 -c 0 -n -d 30s" + "timerlat --help" 129 "timerlat version" +check_top_hist "verify help page" \ + "timerlat TOOL --help" 129 "rtla timerlat" +check_top_hist "verify -s/--stack" \ + "timerlat TOOL -s 3 -T 10 -t" 2 "Blocking thread stack trace" +check_top_hist "test in nanoseconds" \ + "timerlat TOOL -i 2 -c 0 -n -d 10s" 2 "ns" +check_top_hist "set the automatic trace mode" \ + "timerlat TOOL -a 5" 2 "analyzing it" +check_top_hist "dump tasks" \ + "timerlat TOOL -a 5 --dump-tasks" 2 "Printing CPU tasks" +check "verify --aa-only stop on threshold" \ + "timerlat top --aa-only 5" 2 "analyzing it" "Timer Latency" +check "verify --aa-only max latency" \ + "timerlat top --aa-only 2000000 -d 1s" 0 "^ Max latency was" "Timer Latency" +check_top_hist "disable auto-analysis" \ + "timerlat TOOL -s 3 -T 10 -t --no-aa" 2 "" "analyzing it" + +# Thread tests +check_top_hist "verify -P/--priority" \ + "timerlat TOOL -P F:1 -c 0 -d 10s -T 1 --on-threshold shell,command=\"$testdir/scripts/check-priority.sh SCHED_FIFO 1\"" \ + 2 "Priorities are set correctly" +check_top_hist "verify -C/--cgroup" \ + "timerlat TOOL -k -C -c 0 -d 10s -T 1 --on-threshold shell,command=\"$testdir/scripts/check-cgroup-match.sh\"" \ + 2 "cgroup matches for all workload PIDs" +check_top_q_hist "verify -c/--cpus" \ + "timerlat TOOL -c 0 -d 10s -T 1 --on-threshold shell,command=$testdir/scripts/check-cpus.sh" 2 "^Affinity of threads: 0$" +check_top_q_hist "verify -H/--house-keeping" \ + "timerlat TOOL -H 0 -d 10s -T 1 --on-threshold shell,command=$testdir/scripts/check-housekeeping-cpus.sh" 2 "^Affinity of threads: 0$" +check_top_q_hist "verify -k/--kernel-threads" \ + "timerlat TOOL -k -c 0 -d 10s -T 1 --on-threshold shell,command=$testdir/scripts/check-user-kernel-threads.sh" 2 "1 kernel threads, 0 user threads" +check_top_q_hist "verify -u/--user-threads" \ + "timerlat TOOL -u -c 0 -d 10s -T 1 --on-threshold shell,command=$testdir/scripts/check-user-kernel-threads.sh" 2 "0 kernel threads, 1 user threads" + +# Histogram tests +check "hist with -b/--bucket-size" \ + "timerlat hist -b 1 -d 1s" +check "hist with -E/--entries" \ + "timerlat hist -E 10 -d 1s" +check "hist with -E/--entries out of range" \ + "timerlat hist -E 1 -d 1s" 1 "^Entries must be > 10 and < 10000000$" +check "hist with --no-header" \ + "timerlat hist --no-header -d 1s" 0 "" "RTLA timerlat histogram" +check "hist with --with-zeros" \ + "timerlat hist --with-zeros -b 100000 -E 21 -d 1s" 0 '^2000000\s+0\s+' +check "hist with --no-index" \ + "timerlat hist --no-index --with-zeros -d 1s" 0 "" "^count:" +check "hist with --no-summary" \ + "timerlat hist --no-summary -d 1s" 0 "" "^ALL:" +check "hist with --no-irq" \ + "timerlat hist --no-irq -d 1s" 0 "" "IRQ-" +check "hist with --no-thread" \ + "timerlat hist --no-thread -d 1s" 0 "" "Thr-" + +# Actions tests +check_top_q_hist "trace output through -t" \ + "timerlat TOOL -T 2 -t" 2 "^ Saving trace to timerlat_trace.txt$" +check_top_q_hist "trace output through -t with custom filename" \ + "timerlat TOOL -T 2 -t custom_filename.txt" 2 "^ Saving trace to custom_filename.txt$" +check_top_q_hist "trace output through --on-threshold trace" \ + "timerlat TOOL -T 2 --on-threshold trace" 2 "^ Saving trace to timerlat_trace.txt$" +check_top_q_hist "trace output through --on-threshold trace with custom filename" \ + "timerlat TOOL -T 2 --on-threshold trace,file=custom_filename.txt" 2 "^ Saving trace to custom_filename.txt$" +check_top_q_hist "exec command" \ + "timerlat TOOL -T 2 --on-threshold shell,command='echo TestOutput'" 2 "^TestOutput$" +check_top_q_hist "multiple actions" \ + "timerlat TOOL -T 2 --on-threshold shell,command='echo -n 1' --on-threshold shell,command='echo 2'" 2 "^12$" +check "hist stop at failed action" \ + "timerlat hist -T 2 --on-threshold shell,command='echo -n 1; false' --on-threshold shell,command='echo -n 2'" 2 "^1# RTLA timerlat histogram$" +check "top stop at failed action" \ + "timerlat top -T 2 --on-threshold shell,command='echo -n abc; false' --on-threshold shell,command='echo -n defgh'" 2 "^abc" "defgh" +check_top_q_hist "with continue" \ + "timerlat TOOL -T 2 -d 5s --on-threshold shell,command='echo TestOutput' --on-threshold continue" 0 "^TestOutput$" +check_top_q_hist "with conditional continue" \ + "timerlat TOOL -T 2 --on-threshold shell,command='if [ -f a ]; then echo 2; exit 1; else echo -n 1; touch a; fi' --on-threshold continue" 2 "^12$" "^2$" +check_top_hist "with trace output at end" \ + "timerlat TOOL -d 1s --on-end trace" 0 "^ Saving trace to timerlat_trace.txt$" + +# BPF action program tests +if [ "$option" -eq 0 ] +then + # Test BPF action program properly in BPF mode + [ -z "$BPFTOOL" ] && BPFTOOL=bpftool + check_top_q_hist "with BPF action program (BPF mode)" \ + "timerlat TOOL -T 2 --bpf-action $testdir/bpf/bpf_action_map.o --on-threshold shell,command='$BPFTOOL map dump name rtla_test_map'" \ + 2 '"value": 42' +else + # Test BPF action program failure in non-BPF mode + check_top_q_hist "with BPF action program (non-BPF mode)" \ + "timerlat TOOL -T 2 --bpf-action $testdir/bpf/bpf_action_map.o" \ + 1 "BPF actions are not supported in tracefs-only mode" +fi +done test_end |