[PATCH v4 2/3] scripts: coccicheck: Change default condition for parallelism
From: Sumera Priyadarsini
Date: Sun Oct 11 2020 - 06:29:49 EST
Currently, Coccinelle uses at most one thread per core by default in
machines with more than 2 hyperthreads. However, for systems with only 4
hyperthreads, this does not improve performance.
Modify coccicheck to use all available threads in machines with
upto 4 hyperthreads.
Signed-off-by: Sumera Priyadarsini <sylphrenadin@xxxxxxxxx>
---
scripts/coccicheck | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/coccicheck b/scripts/coccicheck
index d67907b8a38b..209bb0427b43 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -79,7 +79,7 @@ else
THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
if [ -z "$J" ]; then
NPROC=$(getconf _NPROCESSORS_ONLN)
- if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 2 ] ; then
+ if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 4 ] ; then
NPROC=$((NPROC/2))
fi
else
--
2.25.1