From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B1EDC433DF for ; Mon, 12 Oct 2020 08:39:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0EC0220757 for ; Mon, 12 Oct 2020 08:39:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727372AbgJLIjl (ORCPT ); Mon, 12 Oct 2020 04:39:41 -0400 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:5562 "EHLO mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726810AbgJLIjl (ORCPT ); Mon, 12 Oct 2020 04:39:41 -0400 X-IronPort-AV: E=Sophos;i="5.77,366,1596492000"; d="scan'208";a="472083611" Received: from abo-173-121-68.mrs.modulonet.fr (HELO hadrien) ([85.68.121.173]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Oct 2020 10:39:39 +0200 Date: Mon, 12 Oct 2020 10:39:39 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@hadrien To: Sumera Priyadarsini cc: michal.lkml@markovi.net, linux-doc@vger.kernel.org, Gilles.Muller@lip6.fr, corbet@lwn.net, nicolas.palix@imag.fr, linux-kernel@vger.kernel.org, cocci@systeme.lip6.fr Subject: Re: [Cocci] [PATCH v4 3/3] Documentation: Coccinelle: Modify Parallelisation information in docs In-Reply-To: <15c5f36aea99a8947847a31cc0f982f9e829a12b.1602410019.git.sylphrenadin@gmail.com> Message-ID: References: <15c5f36aea99a8947847a31cc0f982f9e829a12b.1602410019.git.sylphrenadin@gmail.com> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 11 Oct 2020, Sumera Priyadarsini wrote: > This patchset modifies coccicheck to use at most one thread per core by > default in machines with more than 4 hyperthreads for optimal performance. > Modify documentation in coccinelle.rst to reflect the same. > > Signed-off-by: Sumera Priyadarsini Acked-by: Julia Lawall Jonathan, will you take this patch? thanks, julia > --- > Documentation/dev-tools/coccinelle.rst | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst > index 74c5e6aeeff5..530d8d313601 100644 > --- a/Documentation/dev-tools/coccinelle.rst > +++ b/Documentation/dev-tools/coccinelle.rst > @@ -130,8 +130,10 @@ To enable verbose messages set the V= variable, for example:: > Coccinelle parallelization > -------------------------- > > -By default, coccicheck tries to run as parallel as possible. To change > -the parallelism, set the J= variable. For example, to run across 4 CPUs:: > +By default, coccicheck uses at most 1 thread per core in a machine > +with more than 4 hyperthreads. In a machine with upto 4 threads, > +all threads are used. To change the parallelism, set the J= variable. > +For example, to run across 4 CPUs:: > > make coccicheck MODE=report J=4 > > -- > 2.25.1 > > _______________________________________________ > Cocci mailing list > Cocci@systeme.lip6.fr > https://systeme.lip6.fr/mailman/listinfo/cocci >