From: Julia Lawall <julia.lawall@lip6.fr>
To: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: Gilles Muller <Gilles.Muller@lip6.fr>,
nicolas.palix@imag.fr, mmarek@suse.com,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
gregkh@linuxfoundation.org, markivx@codeaurora.org,
stephen.boyd@linaro.org, zohar@linux.vnet.ibm.com,
broonie@kernel.org, ming.lei@canonical.com, tiwai@suse.de,
johannes@sipsolutions.net, chunkeey@googlemail.com,
hauke@hauke-m.de, jwboyer@fedoraproject.org,
dmitry.torokhov@gmail.com, dwmw2@infradead.org, jslaby@suse.com,
torvalds@linux-foundation.org, deepa.kernel@gmail.com,
cocci@systeme.lip6.fr
Subject: Re: [PATCH v3 3/8] coccicheck: enable parmap support
Date: Tue, 21 Jun 2016 23:31:00 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.02.1606212330470.2040@localhost6.localdomain6> (raw)
In-Reply-To: <20160621212733.GY25646@wotan.suse.de>
On Tue, 21 Jun 2016, Luis R. Rodriguez wrote:
> On Tue, Jun 21, 2016 at 11:10:00PM +0200, Julia Lawall wrote:
> >
> >
> > On Tue, 21 Jun 2016, Luis R. Rodriguez wrote:
> >
> > > On Tue, Jun 21, 2016 at 10:43:04PM +0200, Julia Lawall wrote:
> > > >
> > > >
> > > > On Tue, 21 Jun 2016, Luis R. Rodriguez wrote:
> > > >
> > > > > On Tue, Jun 21, 2016 at 10:17:38PM +0200, Julia Lawall wrote:
> > > > > >
> > > > > >
> > > > > > On Tue, 21 Jun 2016, Luis R. Rodriguez wrote:
> > > > > >
> > > > > > > Coccinelle has had parmap support since 1.0.2, this means
> > > > > > > it supports --jobs, enabling built-in multithreaded functionality,
> > > > > > > instead of needing one to script it out. Just look for --jobs
> > > > > > > in the help output to determine if this is supported.
> > > > > > >
> > > > > > > Also enable the load balancing to be dynamic, so that if a
> > > > > > > thread finishes early we keep feeding it.
> > > > > > >
> > > > > > > Note: now that we have all things handled for us, redirect stderr to
> > > > > > > stdout as well to capture any possible errors or warnings issued by
> > > > > > > coccinelle.
> > > > > > >
> > > > > > > If --jobs is not supported we fallback to the old mechanism.
> > > > > > > This also now accepts DEBUG_FILE= to specify where you want
> > > > > > > stderr to be redirected to, by default we redirect stderr to
> > > > > > > /dev/null.
> > > > > >
> > > > > > Why do you want to do something different for standard error in the parmap
> > > > > > and nonparmap case?
> > > > >
> > > > > We should just deprecate non-parmap later.
> > > >
> > > > that's not really getting at the point. I like the DEBUG_FILE= solution.
> > > > I don't like merging stderr and stdout. So you've put what to my mind is
> > > > the good solution only in the deprecated case (to my understanding of
> > > > the commit message).
> > >
> > > stderr is not being merged to stdout though. By default stderr goes to /dev/null
> > > and if you want it you specify a DEBUG_FILE.
> >
> > Above it says:
> >
> > Note: now that we have all things handled for us, redirect stderr to
> > stdout as well to capture any possible errors or warnings issued by
> > coccinelle.
>
> Ah crap, sorry I left that in the commit log message by mistake.
>
> > If DEBUG_FILE is an option for the parmap case, it should be mentioned
> > there too.
>
> Indeed, its as described instead, stderr goes to /dev/null by default
> unless DEBUG_FILE is specified, if it is specified then stderr goes
> to DEBUG_FILE.
OK, good.
julia
next prev parent reply other threads:[~2016-06-21 21:35 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-21 19:21 [PATCH v3 0/8] coccicheck: modernize Luis R. Rodriguez
2016-06-21 19:21 ` [PATCH v3 1/8] coccicheck: move spatch binary check up Luis R. Rodriguez
2016-06-21 20:34 ` Nicolas Palix (LIG)
2016-06-21 19:21 ` [PATCH v3 2/8] coccicheck: make SPFLAGS more useful Luis R. Rodriguez
2016-06-22 20:39 ` Nicolas Palix (LIG)
2016-06-21 19:21 ` [PATCH v3 3/8] coccicheck: enable parmap support Luis R. Rodriguez
2016-06-21 20:17 ` Julia Lawall
2016-06-21 20:39 ` Luis R. Rodriguez
2016-06-21 20:43 ` Julia Lawall
2016-06-21 20:54 ` Luis R. Rodriguez
2016-06-21 21:10 ` Julia Lawall
2016-06-21 21:27 ` Luis R. Rodriguez
2016-06-21 21:31 ` Julia Lawall [this message]
2016-06-21 21:00 ` Nicolas Palix (LIG)
2016-06-21 21:28 ` Luis R. Rodriguez
2016-06-21 21:32 ` Julia Lawall
2016-06-21 21:39 ` Luis R. Rodriguez
2016-06-21 21:44 ` Julia Lawall
2016-06-21 22:14 ` Luis R. Rodriguez
2016-06-22 5:25 ` Julia Lawall
2016-06-22 15:10 ` [Cocci] " Luis R. Rodriguez
2016-06-22 19:47 ` Julia Lawall
2016-06-21 19:21 ` [PATCH v3 4/8] coccicheck: replace --very-quiet with --quit when debugging Luis R. Rodriguez
2016-06-21 19:21 ` [PATCH v3 5/8] scripts: add Linux .cocciconfig for coccinelle Luis R. Rodriguez
2016-06-21 20:29 ` Julia Lawall
2016-06-21 23:43 ` Luis R. Rodriguez
2016-06-22 5:53 ` Julia Lawall
2016-06-21 21:07 ` Nicolas Palix (LIG)
2016-06-21 21:12 ` Julia Lawall
2016-06-21 23:38 ` Luis R. Rodriguez
2016-06-22 5:51 ` Julia Lawall
2016-06-21 19:21 ` [PATCH v3 6/8] coccicheck: add support for requring a coccinelle version Luis R. Rodriguez
2016-06-21 21:11 ` Nicolas Palix (LIG)
2016-06-21 19:21 ` [PATCH v3 7/8] coccicheck: refer to coccicheck bottest wiki for documentation Luis R. Rodriguez
2016-06-21 21:14 ` Nicolas Palix (LIG)
2016-06-21 21:18 ` Julia Lawall
2016-06-22 0:07 ` Luis R. Rodriguez
2016-06-22 5:56 ` Julia Lawall
2016-06-21 19:21 ` [PATCH v3 8/8] scripts/coccinelle: require coccinelle >= 1.0.4 on device_node_continue.cocci Luis R. Rodriguez
2016-06-21 20:36 ` Julia Lawall
2016-06-21 21:17 ` Nicolas Palix (LIG)
2016-06-21 20:13 ` [PATCH v3 0/8] coccicheck: modernize Julia Lawall
2016-06-21 20:51 ` [Cocci] " Luis R. Rodriguez
2016-06-21 21:02 ` Julia Lawall
2016-06-21 21:21 ` Luis R. Rodriguez
2016-06-21 21:30 ` Julia Lawall
2016-06-21 21:34 ` Luis R. Rodriguez
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