RawTherapee linux zsh performance timer

zshtimer

git clone https://github.com/Benitoite/raw-test ./raw-test ; num=$(nproc) ; sockets=$(lscpu | grep 'Socket(s):' | awk '{print $2}') ; total_threads=$((num * sockets)) ; name=$(lscpu | grep 'Model name:' | sed 's/Model name: *//') ; mhz=$(lscpu | grep 'CPU max MHz:' | awk '{print $4}') ; proc=$(cat ./AboutThisBuild.txt | grep 'Processor') ; echo "\`\`\`" ; echo "================================" ; echo "Available threads = $total_threads / CPU = $name / $mhz MHz / Target = $proc" ; for (( threads = 2; threads <= total_threads; threads *= 2 )); do export OMP_NUM_THREADS=$threads ; total_time=0.0 ; n=5 ; for file in typewriter.CR2 naturalbridges.CR2 beachcabin.ARW; do time_sum=0.0 ; for (( i = 0; i < n; i++ )); do start=$(( $(date +%s%N)/1000000 )) ; rawtherapee-cli -j -s -Y -c ./raw-test/$file &> /dev/null ; finished=$(( $(date +%s%N) / 1000000 )) ; time_sum=$(( "$time_sum + $finished - $start" )) ; done ; avg_time=$(( "$time_sum / $n" )) ; total_time=$(( "$total_time + $avg_time" )) ; done ; echo "$(printf '%.0f\n' "$total_time") total milliseconds elapsed (average of $n runs) using OMP_NUM_THREADS = $threads" ; done ; echo "================================" ; echo "\`\`\`"

With a native build:

================================
Available threads = 2 / CPU = Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz / 3100.0000 MHz / Target = 
58148 total milliseconds elapsed (average of 5 runs) using OMP_NUM_THREADS = 2
================================

Somehow it only detected 2 threads instead of 4, so I ran it one more time with num manually set to 4 (and skipped the 2 threads test since I already obtained the results).

================================
Available threads = 4 / CPU = Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz / 3100.0000 MHz / Target = 
47676 total milliseconds elapsed (average of 5 runs) using OMP_NUM_THREADS = 4
================================