Measure parallel runs tims

run-many.sh

#!/bin/bash -eE

taskset -c 0-1 ./run-one.sh ucx    &
taskset -c 2-3 ./run-one.sh ucx1   &
taskset -c 4-5 ./run-one.sh ucx2   &
taskset -c 6-7 ./run-one.sh ucx3   &
wait

run-one.sh

#!/bin/bash -eE

work_dir=$1

nproc=$(nproc)
#nproc=4
#export AUTOMAKE_JOBS=$nproc

error() {
    msg=$1
    echo "ERROR: $msg"
    exit 1
}

prepare() {
    git clean -ffdx >/dev/null 2>&1
SECONDS=0
    ./autogen.sh    >/dev/null 2>&1
}

run_test() {
    ./configure --prefix=$PWD/__inst    >/dev/null 2>&1
    make -j$nproc                       >/dev/null 2>&1
}

cd "$work_dir"
prepare
#SECONDS=0
run_test
echo "Took $SECONDS sec (nproc=$nproc)"