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From: Fam Zheng <famz@redhat.com>
To: Thomas Huth <thuth@redhat.com>
Cc: "Laurent Vivier" <lvivier@redhat.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Cornelia Huck" <cohuck@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"QEMU Developers" <qemu-devel@nongnu.org>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Cleber Rosa" <crosa@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Lukáš Doktor" <ldoktor@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [Qemu-devel] make check speed
Date: Wed, 23 Aug 2017 17:09:21 +0800	[thread overview]
Message-ID: <20170823090921.GB16292@lemon> (raw)
In-Reply-To: <20170823085219.GA16292@lemon>

On Wed, 08/23 16:52, Fam Zheng wrote:
> On Wed, 08/23 10:35, Thomas Huth wrote:
> > Is it safe nowadays to run "make check -j4" for example? Last time I
> > tried (maybe 1 or 2 years ago), there were still issues since some tests
> > were using hard-coded temporary file names, so the parallel tests were
> > disturbing each other, for example...
> 
> We really should fix them.
> 
> Last year I wanted to get some speed up in patchew's "make check" jobs so I
> tried this:
> 
> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07713.html
> 
> On my laptop it can save 50% time as shown in the commit message, unfortunately
> the patch didn't get enough traction, and I've since then rarely used -j in
> "make check" command lines (what?!).

Spoke too soon, I forgot my git-publish hook has been doing "make check -j8" on
all patches I post, and it seems to work well.

Fam

  reply	other threads:[~2017-08-23  9:09 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-16  8:26 [Qemu-devel] [PATCH for-2.10] boot-serial-test: prefer tcg accelerator Cornelia Huck
2017-08-16  8:28 ` Laurent Vivier
2017-08-16 10:25 ` Thomas Huth
2017-08-16 10:51 ` Paolo Bonzini
2017-08-16 11:18   ` Peter Maydell
2017-08-16 11:46     ` Cornelia Huck
2017-08-22  1:09     ` David Gibson
2017-08-22  5:40       ` Thomas Huth
2017-08-22  8:47       ` Peter Maydell
2017-08-22  8:49         ` Laurent Vivier
2017-08-22  9:35           ` Peter Maydell
2017-08-22 11:20             ` David Gibson
2017-08-22 11:48               ` Cornelia Huck
2017-08-23  0:29                 ` David Gibson
2017-08-23  7:16                   ` Cornelia Huck
2017-08-23  7:49                     ` [Qemu-devel] make check speed (was: Re: [PATCH for-2.10] boot-serial-test: prefer tcg accelerator) Thomas Huth
2017-08-23  8:01                       ` [Qemu-devel] make check speed Paolo Bonzini
2017-08-23  8:35                         ` Thomas Huth
2017-08-23  8:52                           ` Fam Zheng
2017-08-23  9:09                             ` Fam Zheng [this message]
2017-08-23  9:33                           ` Paolo Bonzini
2017-08-24  3:01                             ` David Gibson
2017-08-23 11:51                           ` Lukáš Doktor
2017-08-23 12:01                             ` Thomas Huth
2017-08-23 12:13                               ` Lukáš Doktor
2017-08-24 13:52                                 ` Cleber Rosa
2017-08-23 12:35                             ` Thomas Huth
2017-08-23 12:52                               ` Lukáš Doktor
2017-08-23 12:20                           ` Cornelia Huck
2017-08-24  5:27                             ` Thomas Huth
2017-08-30  8:59                               ` Cornelia Huck
2017-08-30  9:13                                 ` Thomas Huth
2017-08-30 11:52                                   ` Markus Armbruster
2017-08-30 13:56                                     ` Thomas Huth
2017-08-30 14:19                                       ` Markus Armbruster
2017-08-29 16:34                             ` Thomas Huth
2017-08-29 17:13                               ` Thomas Huth
2017-08-16 14:03 ` [Qemu-devel] [PATCH for-2.10] boot-serial-test: prefer tcg accelerator Richard Henderson

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