because the name "MJIT" is an internal code name, it's inconsistent with
--jit while they are related to each other, and I want to discourage future
JIT implementation-specific (e.g. MJIT-specific) APIs by this rename.
[Feature #17490]
This patch contains the fowllowing hacks:
(1) Add "--timetable-data=FILE" option for test-all
This option enables to dump timeline event
contains worker, suite, and start/end time.
(2) remove TestJIT in test_jit_debug.rb on parallel test.
it is duplicated test.
(3) move test_jit.rb and test_jit_debug.rb at first
because these two tests are bottleneck of parallel tests.
On my environment, `make test-all TESTS=-j12` reduced the total time
190 seconds -> 140 seconds.
... based on CRC32 of names of the test suites.
Formerly, `make test-all` randomized the order of the test suites by
using `Array#shuffle`. It also shows `--seed N` to reproduce the order,
but it was not reproducible when a suite set is different.
This change sorts the suites by CRC32 hash of the suite names with a
salt generated by the seed.
MiniTest::Unit (superclass of Test::Unit::Runner) does not has
default seed parameter, but assigned after initializing.
However some tests use MiniTest::Unit without setup of seed option
and it cases unexpected test failures. To solve this issue, add
default seed parameter 42.
by using ObjectSpace.trace_object_allocations.
`make test-all LEAK_CHECKER_TRACE_OBJECT_ALLOCATION=true` will print not
only leaked fds but also where it was created.
