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configure: Prevent spawning more subprocesses than CPUs available.

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Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk 2019-08-02 00:59:27 -04:00
parent cf7a9b69b2
commit 827c4d1466
1 changed files with 6 additions and 4 deletions
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10
configure vendored
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@ -24,19 +24,21 @@ CONFIG_FILE=$SCRIPTPATH/"config.out"
generate_config() {
rm -f ${CONFIG_FILE}
touch ${CONFIG_FILE}
declare -a pid_list
progress=0
n_cores=$(nproc)
# Compile each test module in background
echo "Preparing configuration"
for file in $CONFIG_FILES; do
progress=$((progress+1))
# $1 - Action to be performed
# $2 - File with stored configuration
# $3 - Name of called script (since script is running as subprocess
# it has to be passed explicitly)
source $file "check" "$CONFIG_FILE" "$file" &
pid_list+=($!)
# Prevent spawning more subprocesses than CPU available
while [ $(ps --no-headers -o pid --ppid=$$ | wc -w) -ge $n_cores ] ; do
sleep 1
done
done
# Wait for all compilation processes to finish