memcpu

memcpu.sh

setopt interactivecomments

# ──────────────────────────────────────────────────────────
# 1 실시간 메모리·CPU 상위 N개 출력 ─ memcpu
memcpu() {
  local L=30 nameMax=30 pathMax=30

  while [[ $# -gt 0 ]]; do
    case "$1" in
      -trim)
        IFS=',' read -r nameMax pathMax <<< "$2"; shift 2 ;;
      [0-9]*)
        L=$1; shift ;;
      *) shift ;;
    esac
  done

  ps -axo rss,pcpu,args | \
  awk -v L="$L" -v NM="$nameMax" -v PM="$pathMax" '
    NR==1 {next}
    {
      rssKB=$1; cpu=$2
      $1=$2=""; sub(/^ +/, "", $0)

      split($0, tok, " "); path = tok[1]
      idx=1
      while (path !~ /\.app\// && ++idx <= length(tok))
        path = path " " tok[idx]

      if (match(path, /([^\/]+)\.app\//, cap))
        gkey = cap[1]
      else { n = split(path, pp, "/"); gkey = pp[n] }

      sub("^" path "[ ]*", "", $0)
      split(path, bp, "/"); exec = bp[length(bp)]
      name = exec (length($0) ? " " $0 : "")
      if (length(name) > NM) name = substr(name,1,NM-1)"…"

      dpath = (length(path) > PM) ? "…"substr(path, length(path)-PM+1) : path
      rssMB = rssKB/1024

      printf "I\t%012.2f\t%-*s\t%8.1f MB\t%6.1f%%\t%-*s\n",
             rssMB,NM,name,rssMB,cpu,PM,dpath

      g_mem[gkey]+=rssMB; g_cpu[gkey]+=cpu; g_cnt[gkey]++
    }
    END {
      for (g in g_mem) {
        mem=g_mem[g]; c=g_cpu[g]; k=g_cnt[g]
        gname=(length(g)>30?substr(g,1,27)"…":g)
        printf "G\t%012.2f\t%-30s\t%8.1f MB\t%6.1f%%\t%3d\n",
               mem,gname,mem,c,k
      }
    }' | \
  LC_ALL=C sort -t$'\t' -k2,2nr | \
  awk -F'\t' -v L="$L" '
    BEGIN {
      print "─ INDIVIDUAL (Top " L " by RealMem) ───────────────────────────────"
      printf "%-30s %10s %7s %-30s\n","Process","RealMem","CPU%","Path"
    }
    $1=="I" && ++ic<=L { printf "%s\t%s\t%s\t%s\n",$3,$4,$5,$6 }
    { lines[NR]=$0 }
    END {
      print "\n─ GROUPED by Executable (Top " L " by RealMem) ───────────────"
      printf "%-30s %10s %7s %5s\n","Executable","TotMem","CPU%","Cnt"
      gc=0
      for(i=1;i<=NR;i++)
        if(substr(lines[i],1,1)=="G" && ++gc<=L){
          split(lines[i],f,"\t")
          printf "%s\t%s\t%s\t%s\n",f[3],f[4],f[5],f[6]
        }
    }'
}

# 사용 예
#   memcpu                 → Top 30, 이름·경로 30자
#   memcpu 50 -trim 50,40  → Top 50, 이름 50자, 경로 40자
# ──────────────────────────────────────────────────────────


# 2 Edge 렌더러 대량 점유 시 강제 종료 ─ memfree
alias memfree='ps aux | grep "Microsoft Edge Helper (Renderer)" | grep -v grep | awk '\''{print $2}'\'' | xargs kill -9'


# 3 iOS 시뮬레이터 메모리 청소 ─ simclean
simclean() {
  echo "▶ Shutting down & erasing all simulators..."
  xcrun simctl shutdown all
  xcrun simctl erase all

  echo "▶ Killing residual simulator services..."
  launchctl kickstart -k gui/$(id -u)/com.apple.CoreSimulator.CoreSimulatorService
  pkill -f "(Simulator.app|Sim(MetalHost|RenderServer)|xcodebuild)"

  echo "▶ Done. Current booted devices:"
  if xcrun simctl list devices | grep -q Booted; then
    xcrun simctl list devices | grep Booted
  else
    echo "None ✅"
  fi
}
# ──────────────────────────────────────────────────────────