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From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
To: Tomi Ollila <tomi.ollila@iki.fi>,
	David Bremner <david@tethera.net>, "Rollins\,
	Jameson" <jrollins@caltech.edu>,
	Notmuch Mail <notmuch@notmuchmail.org>
Subject: Re: parallelize test suite
Date: Mon, 06 May 2019 17:39:24 -0400	[thread overview]
Message-ID: <87tve7l0tv.fsf@fifthhorseman.net> (raw)
In-Reply-To: <m2v9yo4zse.fsf@guru.guru-group.fi>

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On Sun 2019-05-05 19:44:01 +0300, Tomi Ollila wrote:
>> I actually think that CI and autobuilders *should* exercise the parallel
>> tests, as annoying as that might be initially, because it seems likely
>> to catch any other potential entanglements.
>
> ... after it has been proven a bit more to work...

i tend to think the other way around -- the way to prove it is to push
it into the CI pipelines on the development branch, rather than trying
to prove it on individual developer systems.

> One thing more, the "perverse" pre-caching done in add_email_corpus
> can be retained -- just do that step *before* going to parallelism...

You could do that, but i'm not sure how much you'd gain from it -- its
current implementation is all mixed up with the parallelized tests,
anyway.  If you wanted to propose a concrete re-optimization like this,
i'd be happy to review it, test it and report back on the speedup
gained.

thanks for thinking this through, Tomi!

     --dkg

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  reply	other threads:[~2019-05-06 21:57 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-04 20:57 parallelize test suite Rollins, Jameson
2019-05-04 20:57 ` [PATCH 1/3] tests: remove some redundant pre-cleanup of the corpus MAIL_DIR Rollins, Jameson
2019-05-04 20:57   ` [PATCH 2/3] tests: remove entangling corpus index optimization Rollins, Jameson
2019-05-04 20:57     ` [PATCH 3/3] tests: run all tests in parallel, if available Rollins, Jameson
2019-05-06  4:44       ` [PATCH] tests: environment variable to specify that tests should be serialized Rollins, Jameson
2019-05-06 10:32         ` [PATCH] test: add configurable port to smtp-dummy David Bremner
2019-05-06 19:39           ` Tomi Ollila
2019-05-06 20:55             ` Daniel Kahn Gillmor
2019-05-07 10:20             ` [PATCH] test: let the OS choose a port for smtp-dummy David Bremner
2019-05-07 12:38               ` Daniel Kahn Gillmor
2019-05-08 15:59                 ` Tomi Ollila
2019-05-10 10:16               ` David Bremner
2019-05-06 19:15         ` [PATCH] tests: environment variable to specify that tests should be serialized Tomi Ollila
2019-05-06 20:58           ` Daniel Kahn Gillmor
2019-05-05 10:22   ` [PATCH 1/3] tests: remove some redundant pre-cleanup of the corpus MAIL_DIR Tomi Ollila
2019-05-04 21:33 ` parallelize test suite Rollins, Jameson
2019-05-04 21:39 ` Daniel Kahn Gillmor
2019-05-04 22:53   ` David Bremner
2019-05-05 15:22     ` Daniel Kahn Gillmor
2019-05-05 16:44       ` Tomi Ollila
2019-05-06 21:39         ` Daniel Kahn Gillmor [this message]
2019-05-07 10:26 ` David Bremner

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