From: Sumera Priyadarsini <sylphrenadin@gmail.com>
To: Julia.Lawall@lip6.fr
Cc: corbet@lwn.net, Gilles.Muller@lip6.fr, nicolas.palix@imag.fr,
michal.lkml@markovi.net, cocci@systeme.lip6.fr,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: [PATCH 2/2 V3] Documentation: Coccinelle: Modify parallelisation information in docs
Date: Wed, 7 Oct 2020 13:52:53 +0530 [thread overview]
Message-ID: <25adae324909605cdbe5ae88a9d60c34aeb515d7.1602054065.git.sylphrenadin@gmail.com> (raw)
In-Reply-To: <cover.1602054065.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>
---
Changes in V2:
Update scripts/coccicheck to use all available threads
in machines with upto 4 hyperthreads.
---
Documentation/dev-tools/coccinelle.rst | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst
index 74c5e6aeeff5..6fdc462689d5 100644
--- a/Documentation/dev-tools/coccinelle.rst
+++ b/Documentation/dev-tools/coccinelle.rst
@@ -130,8 +130,9 @@ 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
prev parent reply other threads:[~2020-10-07 8:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 8:14 [PATCH 0/2 V3] Improve Coccinelle Parallelisation Sumera Priyadarsini
2020-10-07 8:21 ` [PATCH 1/2 V3] scripts: coccicheck: Change default value for parallelism Sumera Priyadarsini
2020-10-07 8:22 ` Sumera Priyadarsini [this message]
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