14903c8e92
Since 81071626ba (trace2: add global counter mechanism, 2022-10-24)
these tests have been failing when git is compiled with NO_PTHREADS=Y,
which is always the case e.g. if 'uname -s' is "NONSTOP_KERNEL".
Reported-by: Randall S. Becker <randall.becker@nexbridge.ca>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
272 lines
9.3 KiB
Bash
Executable File
272 lines
9.3 KiB
Bash
Executable File
#!/bin/sh
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test_description='test trace2 facility (perf target)'
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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# Turn off any inherited trace2 settings for this test.
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sane_unset GIT_TRACE2 GIT_TRACE2_PERF GIT_TRACE2_EVENT
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sane_unset GIT_TRACE2_PERF_BRIEF
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sane_unset GIT_TRACE2_CONFIG_PARAMS
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# Add t/helper directory to PATH so that we can use a relative
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# path to run nested instances of test-tool.exe (see 004child).
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# This helps with HEREDOC comparisons later.
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TTDIR="$GIT_BUILD_DIR/t/helper/" && export TTDIR
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PATH="$TTDIR:$PATH" && export PATH
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# Warning: use of 'test_cmp' may run test-tool.exe and/or git.exe
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# Warning: to do the actual diff/comparison, so the HEREDOCs here
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# Warning: only cover our actual calls to test-tool and/or git.
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# Warning: So you may see extra lines in artifact files when
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# Warning: interactively debugging.
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V=$(git version | sed -e 's/^git version //') && export V
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# There are multiple trace2 targets: normal, perf, and event.
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# Trace2 events will/can be written to each active target (subject
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# to whatever filtering that target decides to do).
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# Test each target independently.
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#
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# Defer setting GIT_TRACE2_PERF until the actual command we want to
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# test because hidden git and test-tool commands in the test
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# harness can contaminate our output.
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# Enable "brief" feature which turns off the prefix:
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# "<clock> <file>:<line> | <nr_parents> | "
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GIT_TRACE2_PERF_BRIEF=1 && export GIT_TRACE2_PERF_BRIEF
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# Repeat some of the t0210 tests using the perf target stream instead of
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# the normal stream.
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#
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# Tokens here of the form _FIELD_ have been replaced in the observed output.
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# Verb 001return
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#
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# Implicit return from cmd_<verb> function propagates <code>.
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test_expect_success 'perf stream, return code 0' '
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test_when_finished "rm trace.perf actual expect" &&
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GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 001return 0 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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cat >expect <<-EOF &&
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d0|main|version|||||$V
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d0|main|start||_T_ABS_|||_EXE_ trace2 001return 0
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d0|main|cmd_name|||||trace2 (trace2)
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d0|main|exit||_T_ABS_|||code:0
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d0|main|atexit||_T_ABS_|||code:0
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EOF
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test_cmp expect actual
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'
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test_expect_success 'perf stream, return code 1' '
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test_when_finished "rm trace.perf actual expect" &&
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test_must_fail env GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 001return 1 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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cat >expect <<-EOF &&
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d0|main|version|||||$V
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d0|main|start||_T_ABS_|||_EXE_ trace2 001return 1
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d0|main|cmd_name|||||trace2 (trace2)
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d0|main|exit||_T_ABS_|||code:1
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d0|main|atexit||_T_ABS_|||code:1
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EOF
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test_cmp expect actual
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'
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# Verb 003error
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#
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# To the above, add multiple 'error <msg>' events
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test_expect_success 'perf stream, error event' '
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test_when_finished "rm trace.perf actual expect" &&
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GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 003error "hello world" "this is a test" &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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cat >expect <<-EOF &&
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d0|main|version|||||$V
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d0|main|start||_T_ABS_|||_EXE_ trace2 003error '\''hello world'\'' '\''this is a test'\''
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d0|main|cmd_name|||||trace2 (trace2)
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d0|main|error|||||hello world
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d0|main|error|||||this is a test
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d0|main|exit||_T_ABS_|||code:0
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d0|main|atexit||_T_ABS_|||code:0
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EOF
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test_cmp expect actual
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'
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# Verb 004child
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#
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# Test nested spawning of child processes.
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#
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# Conceptually, this looks like:
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# P1: TT trace2 004child
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# P2: |--- TT trace2 004child
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# P3: |--- TT trace2 001return 0
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#
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# Which should generate events:
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# P1: version
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# P1: start
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# P1: cmd_name
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# P1: child_start
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# P2: version
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# P2: start
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# P2: cmd_name
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# P2: child_start
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# P3: version
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# P3: start
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# P3: cmd_name
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# P3: exit
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# P3: atexit
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# P2: child_exit
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# P2: exit
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# P2: atexit
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# P1: child_exit
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# P1: exit
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# P1: atexit
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test_expect_success 'perf stream, child processes' '
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test_when_finished "rm trace.perf actual expect" &&
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GIT_TRACE2_PERF="$(pwd)/trace.perf" test-tool trace2 004child test-tool trace2 004child test-tool trace2 001return 0 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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cat >expect <<-EOF &&
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d0|main|version|||||$V
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d0|main|start||_T_ABS_|||_EXE_ trace2 004child test-tool trace2 004child test-tool trace2 001return 0
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d0|main|cmd_name|||||trace2 (trace2)
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d0|main|child_start||_T_ABS_|||[ch0] class:? argv:[test-tool trace2 004child test-tool trace2 001return 0]
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d1|main|version|||||$V
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d1|main|start||_T_ABS_|||_EXE_ trace2 004child test-tool trace2 001return 0
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d1|main|cmd_name|||||trace2 (trace2/trace2)
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d1|main|child_start||_T_ABS_|||[ch0] class:? argv:[test-tool trace2 001return 0]
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d2|main|version|||||$V
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d2|main|start||_T_ABS_|||_EXE_ trace2 001return 0
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d2|main|cmd_name|||||trace2 (trace2/trace2/trace2)
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d2|main|exit||_T_ABS_|||code:0
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d2|main|atexit||_T_ABS_|||code:0
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d1|main|child_exit||_T_ABS_|_T_REL_||[ch0] pid:_PID_ code:0
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d1|main|exit||_T_ABS_|||code:0
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d1|main|atexit||_T_ABS_|||code:0
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d0|main|child_exit||_T_ABS_|_T_REL_||[ch0] pid:_PID_ code:0
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d0|main|exit||_T_ABS_|||code:0
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d0|main|atexit||_T_ABS_|||code:0
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EOF
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test_cmp expect actual
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'
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sane_unset GIT_TRACE2_PERF_BRIEF
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# Now test without environment variables and get all Trace2 settings
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# from the global config.
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test_expect_success 'using global config, perf stream, return code 0' '
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test_when_finished "rm trace.perf actual expect" &&
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test_config_global trace2.perfBrief 1 &&
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test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
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test-tool trace2 001return 0 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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cat >expect <<-EOF &&
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d0|main|version|||||$V
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d0|main|start||_T_ABS_|||_EXE_ trace2 001return 0
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d0|main|cmd_name|||||trace2 (trace2)
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d0|main|exit||_T_ABS_|||code:0
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d0|main|atexit||_T_ABS_|||code:0
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EOF
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test_cmp expect actual
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'
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# Exercise the stopwatch timers in a loop and confirm that we have
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# as many start/stop intervals as expected. We cannot really test the
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# actual (total, min, max) timer values, so we have to assume that they
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# are good, but we can verify the interval count.
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#
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# The timer "test/test1" should only emit a global summary "timer" event.
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# The timer "test/test2" should emit per-thread "th_timer" events and a
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# global summary "timer" event.
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have_timer_event () {
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thread=$1 event=$2 category=$3 name=$4 intervals=$5 file=$6 &&
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pattern="d0|${thread}|${event}||||${category}|name:${name} intervals:${intervals}" &&
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grep "${pattern}" ${file}
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}
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test_expect_success 'stopwatch timer test/test1' '
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test_when_finished "rm trace.perf actual" &&
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test_config_global trace2.perfBrief 1 &&
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test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
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# Use the timer "test1" 5 times from "main".
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test-tool trace2 100timer 5 10 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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have_timer_event "main" "timer" "test" "test1" 5 actual
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'
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test_expect_success PTHREAD 'stopwatch timer test/test2' '
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test_when_finished "rm trace.perf actual" &&
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test_config_global trace2.perfBrief 1 &&
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test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
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# Use the timer "test2" 5 times each in 3 threads.
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test-tool trace2 101timer 5 10 3 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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# So we should have 3 per-thread events of 5 each.
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have_timer_event "th01:ut_101" "th_timer" "test" "test2" 5 actual &&
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have_timer_event "th02:ut_101" "th_timer" "test" "test2" 5 actual &&
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have_timer_event "th03:ut_101" "th_timer" "test" "test2" 5 actual &&
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# And we should have 15 total uses.
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have_timer_event "main" "timer" "test" "test2" 15 actual
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'
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# Exercise the global counters and confirm that we get the expected values.
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#
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# The counter "test/test1" should only emit a global summary "counter" event.
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# The counter "test/test2" could emit per-thread "th_counter" events and a
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# global summary "counter" event.
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have_counter_event () {
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thread=$1 event=$2 category=$3 name=$4 value=$5 file=$6 &&
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pattern="d0|${thread}|${event}||||${category}|name:${name} value:${value}" &&
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grep "${patern}" ${file}
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}
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test_expect_success 'global counter test/test1' '
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test_when_finished "rm trace.perf actual" &&
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test_config_global trace2.perfBrief 1 &&
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test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
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# Use the counter "test1" and add n integers.
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test-tool trace2 200counter 1 2 3 4 5 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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have_counter_event "main" "counter" "test" "test1" 15 actual
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'
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test_expect_success PTHREAD 'global counter test/test2' '
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test_when_finished "rm trace.perf actual" &&
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test_config_global trace2.perfBrief 1 &&
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test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
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# Add 2 integers to the counter "test2" in each of 3 threads.
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test-tool trace2 201counter 7 13 3 &&
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perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <trace.perf >actual &&
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# So we should have 3 per-thread events of 5 each.
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have_counter_event "th01:ut_201" "th_counter" "test" "test2" 20 actual &&
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have_counter_event "th02:ut_201" "th_counter" "test" "test2" 20 actual &&
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have_counter_event "th03:ut_201" "th_counter" "test" "test2" 20 actual &&
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# And we should have a single event with the total across all threads.
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have_counter_event "main" "counter" "test" "test2" 60 actual
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'
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test_done
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