[wp-trac] [WordPress Trac] #52645: Split slow tests into their own job on PHP 5.6 and run them in parallel

[WordPress Trac]

#52645: Split slow tests into their own job on PHP 5.6 and run them in parallel
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 Reporter:  johnbillion       |       Owner:  johnbillion
     Type:  task (blessed)    |      Status:  closed
 Priority:  normal            |   Milestone:  5.8
Component:  Build/Test Tools  |     Version:
 Severity:  normal            |  Resolution:  fixed
 Keywords:  has-patch         |     Focuses:
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Changes (by johnbillion):

 * owner:  (none) => johnbillion
 * status:  new => closed
 * resolution:   => fixed


Comment:

 In [changeset:"50444" 50444]:
 {{{
 #!CommitTicketReference repository="" revision="50444"
 Build/Test Tools: Split the PHPUnit tests for PHP versions below 7.0 in
 half, allowing them to run in parallel and reduce the overall test run
 duration on GitHub Actions.

 The `external-http`, `media`, and `restapi` groups combined take roughly
 the same time as all the other tests combined. Splitting the test run in
 two speeds up the PHP 5.6 test runs which are the slowest by quite a
 margin. The net reduction in duration is only seen on PHP versions older
 than 7.0 where the reduction is greater than the time taken for the job to
 be set up.

 Props peterwilsoncc, desrosj, johnbillion

 Special shout out to manzoorwanijk whose article about running steps in
 parallel started me down this path.

 Fixes #52645
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/52645#comment:4>
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