linux-kernel - [PATCH v4 3/3] Documentation: Coccinelle: Modify Parallelisation information in docs

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Message-ID: <15c5f36aea99a8947847a31cc0f982f9e829a12b.1602410019.git.sylphrenadin@gmail.com>
Date:   Sun, 11 Oct 2020 16:01:07 +0530
From:   Sumera Priyadarsini <sylphrenadin@...il.com>
To:     Julia.Lawall@...6.fr
Cc:     corbet@....net, Gilles.Muller@...6.fr, nicolas.palix@...g.fr,
        michal.lkml@...kovi.net, cocci@...teme.lip6.fr,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: [PATCH v4 3/3] Documentation: Coccinelle: Modify Parallelisation
 information in docs

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@...il.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