Coccinelle Archive on lore.kernel.org
 help / color / Atom feed
From: Sumera Priyadarsini <sylphrenadin@gmail.com>
To: Julia.Lawall@lip6.fr
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: [Cocci] [PATCH v4 3/3] Documentation: Coccinelle: Modify Parallelisation information in docs
Date: Sun, 11 Oct 2020 16:01:07 +0530
Message-ID: <15c5f36aea99a8947847a31cc0f982f9e829a12b.1602410019.git.sylphrenadin@gmail.com> (raw)
In-Reply-To: <cover.1602410019.git.sylphrenadin@gmail.com>

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 <sylphrenadin@gmail.com>
---
 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

  parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-11 10:26 [Cocci] [PATCH v4 0/3] Improve Coccinelle Parallelisation Sumera Priyadarsini
2020-10-11 10:28 ` [Cocci] [PATCH v4 1/3] scripts: coccicheck: Add quotes to improve portability Sumera Priyadarsini
2020-10-12  8:38   ` Julia Lawall
2020-10-11 10:29 ` [Cocci] [PATCH v4 2/3] scripts: coccicheck: Change default condition for parallelism Sumera Priyadarsini
2020-10-12  8:38   ` Julia Lawall
2020-10-11 10:31 ` Sumera Priyadarsini [this message]
2020-10-12  8:39   ` [Cocci] [PATCH v4 3/3] Documentation: Coccinelle: Modify Parallelisation information in docs Julia Lawall

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=15c5f36aea99a8947847a31cc0f982f9e829a12b.1602410019.git.sylphrenadin@gmail.com \
    --to=sylphrenadin@gmail.com \
    --cc=Gilles.Muller@lip6.fr \
    --cc=Julia.Lawall@lip6.fr \
    --cc=cocci@systeme.lip6.fr \
    --cc=corbet@lwn.net \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=michal.lkml@markovi.net \
    --cc=nicolas.palix@imag.fr \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Coccinelle Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/cocci/0 cocci/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 cocci cocci/ https://lore.kernel.org/cocci \
		cocci@systeme.lip6.fr
	public-inbox-index cocci

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/fr.lip6.systeme.cocci


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git