linux-kernel - Re: [Cocci] [PATCH 4/4] coccicheck: add indexing enhancement options

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Date:	Mon, 13 Jun 2016 23:22:49 +0200
From:	"Luis R. Rodriguez" <mcgrof@...nel.org>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	Wolfram Sang <wsa@...-dreams.de>,
	"Luis R. Rodriguez" <mcgrof@...nel.org>, cocci@...teme.lip6.fr,
	mmarek@...e.com, linux-kernel@...r.kernel.org
Subject: Re: [Cocci] [PATCH 4/4] coccicheck: add indexing enhancement options

On Mon, Jun 13, 2016 at 09:48:30PM +0200, Julia Lawall wrote:
> 
> 
> On Mon, 13 Jun 2016, Wolfram Sang wrote:
> 
> > 
> > > Is there another scripts/coccinelle/ file I can use to test against to demo
> > > against glimpse/idutils/gitgrep best?
> > 
> > I'd think this one may be a candidate:
> > 
> > scripts/coccinelle/misc/irqf_oneshot.cocci
> > 
> > Not too many, but quite some matches over the tree.
> 
> Seems like a reasonable choice.

With this one on a 32-core system, I get:

glimpse:
real    0m6.549s
user    0m49.136s
sys     0m3.076s

idutils:
real    0m6.749s
user    0m51.936s
sys     0m3.876s

gitgrep:
real    0m6.805s
user    0m51.572s
sys     0m4.432s

coccigrep:
real    0m16.369s
user    0m58.712s
sys     0m5.064s

I redirected stderr to stdout, and verified glimpse output has:

glimpse request = request_threaded_irq

Does this match expectations?

  Luis