Investigate flaky test-worker-prof

https://ci.nodejs.org/job/node-test-binary-arm/6472/RUN_SUBSET=0,label=pi1-docker/console

test-requireio_ceejbot-debian9-armv6l_pi1p-1

00:34:22 not ok 365 parallel/test-worker-prof
00:34:22   ---
00:34:22   duration_ms: 19.977
00:34:22   severity: fail
00:34:22   exitcode: 1
00:34:22   stack: |-
00:34:22     assert.js:85
00:34:22       throw new AssertionError(obj);
00:34:22       ^
00:34:22     
00:34:22     AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
00:34:22     
00:34:22     1 !== 2
00:34:22     
00:34:22         at Object.<anonymous> (/home/iojs/build/workspace/node-test-binary-arm/test/parallel/test-worker-prof.js:29:8)
00:34:22         at Module._compile (internal/modules/cjs/loader.js:807:30)
00:34:22         at Object.Module._extensions..js (internal/modules/cjs/loader.js:818:10)
00:34:22         at Module.load (internal/modules/cjs/loader.js:674:32)
00:34:22         at tryModuleLoad (internal/modules/cjs/loader.js:606:12)
00:34:22         at Function.Module._load (internal/modules/cjs/loader.js:598:3)
00:34:22         at Function.Module.runMain (internal/modules/cjs/loader.js:870:12)
00:34:22         at internal/main/run_main_module.js:21:11
00:34:22   ...

https://ci.nodejs.org/job/node-test-binary-arm/6731/RUN_SUBSET=2,label=pi1-docker/testReport/junit/(root)/test/parallel_test_worker_prof/
Worker: https://ci.nodejs.org/computer/test-requireio_davglass-debian9-armv6l_pi1p-1/

mark-as-flaky PR: #26557

the assertion failure indicates that either the parent or the child - one those did not produce a trace output! (something beyond what we thought could potentially cause flake in this test - i.e., the process timings and the number of ticks etc.)

test: mark `test-worker-prof` as Flaky on ARM

Now it's flaking on Windows
Worker: https://ci.nodejs.org/computer/test-azure_msft-win10-x64-1/

assert.js:340
    throw err;
    ^

AssertionError [ERR_ASSERTION]: 3 >= 15
    at Object.<anonymous> (c:\workspace\node-test-binary-windows\test\parallel\test-worker-prof.js:39:3)
    at Module._compile (internal/modules/cjs/loader.js:813:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:824:10)
    at Module.load (internal/modules/cjs/loader.js:680:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:612:12)
    at Function.Module._load (internal/modules/cjs/loader.js:604:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:876:12)
    at internal/main/run_main_module.js:21:11

Also on Linux without intl:

https://ci.nodejs.org/job/node-test-commit-linux-containered/11274/nodes=ubuntu1604_sharedlibs_withoutintl_x64/testReport/junit/(root)/test/parallel_test_worker_prof/

assert.js:340
    throw err;
    ^

AssertionError [ERR_ASSERTION]: 10 >= 15
    at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-linux-containered/test/parallel/test-worker-prof.js:39:3)
    at Module._compile (internal/modules/cjs/loader.js:813:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:824:10)
    at Module.load (internal/modules/cjs/loader.js:680:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:612:12)
    at Function.Module._load (internal/modules/cjs/loader.js:604:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:876:12)
    at internal/main/run_main_module.js:21:11

test: mark test-worker-prof as flake on all platforms

test: mark `test-worker-prof` as Flaky on ARM

test: mark test-worker-prof as flake on all platforms

test: mark `test-worker-prof` as Flaky on ARM

test: mark test-worker-prof as flake on all platforms

test: fix flaky test-worker-prof

Still flaky: nodejs/reliability#640

I start to wonder if we actually need 15 ticks in the tests. Maybe it's already good enough to run some tests and check the code-creation events...

test: make test-worker-prof more robust

I believe this issue can be closed now #37673 (comment)

test: unmark test-worker-prof as flaky

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Investigate flaky test-worker-prof #26401

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Investigate flaky test-worker-prof #26401

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refack commented on Mar 10, 2019

gireeshpunathil commented on Mar 10, 2019

refack commented on Mar 10, 2019

targos commented on Mar 11, 2019

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shnooshnoo commented on Dec 12, 2023

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