nimbench.sh

#!/usr/bin/env bash

for V in "$@"; do
  [[ $V == CC=* ]] && export "$V" || { echo "Unknown parameter $V"; exit 1; }
done

DIR=benchnim

rm -rf "$HOME"/.cache/nim/{koch_d,nim_r,nimble_r,nimgrep_r,nimpretty_r,nimsuggest_r,testament_r}

collectinfo() {
  OS=$(uname)
  if [[ $OS == "Linux" ]]; then
    export CC=${CC-gcc}
    awk -F: '/model name/ {name=$2} END {print "CPU:" name}' /proc/cpuinfo | sed 's/^[ \t]*//;s/[ \t]*$//'
    awk -F: '/model name/ {core++} END {print "Cores: " core}' /proc/cpuinfo
    awk -F: ' /cpu MHz/ {freq=$2} END {print "Freq:" freq " MHz"}' /proc/cpuinfo | sed 's/^[ \t]*//;s/[ \t]*$//'
    free -h | awk 'NR==2 {print "Ram: " $2}'
    echo "Disk:" $(lsblk -n -d -o VENDOR,MODEL $(findmnt -n -f --target . | awk '{print $2}') | grep -v '^[[:space:]]*$' | head -n1)
    echo "OS: $OS $(uname -r)"
    echo 'Cc:' $("$CC" --version | head -n1)
  else
    export CC=${CC-clang}
    echo 'CPU:' $(sysctl -n machdep.cpu.brand_string)
    echo 'Cores:' $(sysctl -n hw.ncpu)
    FREQ=$(sysctl -n hw.cpufrequency)
    [[ -n $FREQ ]] && echo 'Freq:' $((FREQ / 1000000))
    echo 'RAM:' $(sysctl -n hw.physmem)
    diskutil info disk0 | grep 'Device / Media' | awk -F ':' '{gsub(/^[ \t]+/, "", $2); print "Disk: " $2}'
    echo "OS: $OS $(uname -r)"
    echo 'Cc:' $("$CC" --version | head -n1)
  fi
}

bench_cmd() {
  (
    echo Benching "$@"
    export TIMEFORMAT="%3R seconds: $*"
    cd Nim && ( time "$@" 2>&3 ) 3>&2 2>>../time.log
  ) || { echo Error during build; exit 1; }
}

complete() {
  cat >complete.nim <<'EEE'
import browsers, uri, strformat, strutils, sequtils
let lines = toSeq(lines("time.log")).deduplicate()
echo lines.join("\n")
let title = lines.filterIt(it.startsWith("CPU:")).join().encodeUrl()
let body = ("```\n" & lines.join("\n") & "\n```").encodeUrl()
let url = fmt"https://github.com/inv2004/bench_nim_build/issues/new?title={title}&labels=stats&body={body}"
echo "Please open in your browser the following link if browser is not open:"
echo url
openDefaultBrowser(url)
EEE

grep -i microsoft /proc/version 2>/dev/null && { export BROWSER=wslview; } || false
./Nim/bin/nim c --cc:"$CC" -r complete.nim

}

mkdir -p $DIR
(
  cd $DIR && \
  collectinfo > time.log
  [[ ! -d NimCloned ]] && (
    git clone https://github.com/nim-lang/Nim NimCloned && \
    cd NimCloned && \
    git reset --hard fac5bae7b7d87aeec48c7252029c2852ee157ac9 && \
    source ci/funs.sh && \
    nimDefineVars && \
    echo_run git clone -q "$nim_csourcesUrl" "$nim_csourcesDir" && \
    echo_run git -C "$nim_csourcesDir" checkout "$nim_csourcesHash"
  )

  [[ -d Nim ]] && rm -rf Nim
  cp -r NimCloned Nim && \
  sed 's/ --hints:off/ --hints:off --cc:$CC/g' Nim/build_all.sh > Nim/build_all.sh_tmp && \
  mv -f Nim/build_all.sh_tmp Nim/build_all.sh && chmod +x Nim/build_all.sh && \
  bench_cmd ./build_all.sh CC="$CC" && \
  bench_cmd ./koch temp -d:release --cc:"$CC"

  echo Delete "$DIR" folder manualy if you want to cleanup artefacts of the benchmark

  complete
)