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From: Junio C Hamano <gitster@pobox.com>
To: Mike Hommey <mh@glandium.org>
Cc: Jeff King <peff@peff.net>, larsxschneider@gmail.com, git@vger.kernel.org
Subject: Re: [PATCH] travis-ci: run previously failed tests first, then slowest to fastest
Date: Tue, 19 Jan 2016 17:46:55 -0800	[thread overview]
Message-ID: <xmqqfuxt6n00.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <20160120002606.GA9359@glandium.org> (Mike Hommey's message of "Wed, 20 Jan 2016 09:26:06 +0900")

Mike Hommey <mh@glandium.org> writes:

> On Tue, Jan 19, 2016 at 03:00:52PM -0800, Junio C Hamano wrote:
>
>> I think 3 comes from this:
>> 
>>   http://thread.gmane.org/gmane.comp.version-control.git/279348/focus=279674
>
> Having recently looked into this, the relevant travis-ci documentation
> is:
> https://docs.travis-ci.com/user/ci-environment/
>
> which says all environments have 2 cores, so you won't get much from
> anything higher than -j3.
>
> The following document also says something slightly different:
> https://docs.travis-ci.com/user/speeding-up-the-build#Parallelizing-your-build-on-one-VM
>
> "Travis CI VMs run on 1.5 virtual cores."

Yup, that 1.5 was already mentioned in the earlier thread, but many
tests are mostly I/O bound, so 1.5 (or 2 for that matter) does not
mean we should not go higher than -j2 or -j3.  What I meant was that
the 3 comes from the old discussion "let's be nice to those who
offer this to us for free".

  reply	other threads:[~2016-01-20  1:47 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-19  9:24 [PATCH] travis-ci: run previously failed tests first, then slowest to fastest larsxschneider
2016-01-19 19:12 ` Jeff King
2016-01-19 23:00   ` Junio C Hamano
2016-01-20  0:26     ` Mike Hommey
2016-01-20  1:46       ` Junio C Hamano [this message]
2016-01-20  1:56         ` Jeff King
2016-01-20  9:22         ` Lars Schneider
2016-01-22  2:33           ` brian m. carlson
2016-01-22  5:52             ` Jeff King
2016-01-22  6:07               ` Jeff King
2016-01-24 14:34                 ` Thomas Gummerer
2016-01-24 20:03                   ` Junio C Hamano
2016-01-24 22:05                     ` Junio C Hamano
2016-01-25 14:42                       ` Thomas Gummerer
2016-01-25 17:26                         ` Junio C Hamano
2016-01-25 21:52                           ` Junio C Hamano
2016-01-27 15:16                             ` Clemens Buchacher
2016-01-27 19:05                               ` Junio C Hamano
2016-01-27 20:49                                 ` Junio C Hamano
2016-01-28  7:10                                   ` Clemens Buchacher
2016-01-28 21:32                                     ` Junio C Hamano
2016-01-30  8:13                                       ` Clemens Buchacher
2016-02-01 18:17                                         ` Junio C Hamano
2016-02-01 19:33                                           ` Clemens Buchacher
2016-02-02 23:14                                             ` Junio C Hamano
2016-02-03  8:31                                               ` Junio C Hamano
2016-02-01 20:26                                           ` Torsten Bögershausen
2016-01-28  6:20                                 ` eol round trip Was: [PATCH] travis-ci: run previously failed Torsten Bögershausen
2016-01-25 22:41                           ` [PATCH] travis-ci: run previously failed tests first, then slowest to fastest Thomas Gummerer
2016-01-20  1:53       ` Jeff King
2016-01-20  9:10       ` Lars Schneider
2016-01-19 20:00 ` Junio C Hamano
2016-01-19 22:53   ` Junio C Hamano
2016-01-19 23:06     ` Jeff King
2016-01-19 23:26       ` Junio C Hamano
2016-01-19 23:29         ` Jeff King
2016-01-19 23:30         ` Junio C Hamano
2016-01-19 23:27       ` Jeff King
2016-01-20  7:55   ` Johannes Schindelin
2016-01-20  9:04   ` Lars Schneider
2016-01-20 20:35     ` Junio C Hamano

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