node v24.18.0, host RAM 58987 MiB
--- no cgroup limit (plain shell):
  totalmem MiB = 58987 heap_size_limit MiB = 4288
--- MemoryMax=512M:
  memory.max=536870912
  totalmem MiB = 58987 heap_size_limit MiB = 259
--- MemoryMax=1G:
  memory.max=1073741824
  totalmem MiB = 58987 heap_size_limit MiB = 560
--- MemoryMax=2G:
  memory.max=2147483648
  totalmem MiB = 58987 heap_size_limit MiB = 1120
--- MemoryMax=3G:
  memory.max=3221225472
  totalmem MiB = 58987 heap_size_limit MiB = 1728
--- MemoryMax=3800M:
  memory.max=3984588800
  totalmem MiB = 58987 heap_size_limit MiB = 2092
--- MemoryMax=4G:
  memory.max=4294967296
  totalmem MiB = 58987 heap_size_limit MiB = 2240
--- MemoryMax=5017M:
  memory.max=5260705792
  totalmem MiB = 58987 heap_size_limit MiB = 2240
--- MemoryMax=8G:
  memory.max=8589934592
  totalmem MiB = 58987 heap_size_limit MiB = 2240
--- MemoryMax=16G:
  memory.max=17179869184
  totalmem MiB = 58987 heap_size_limit MiB = 4288
--- MemoryMax=32G:
  memory.max=34359738368
  totalmem MiB = 58987 heap_size_limit MiB = 4288
--- MemoryHigh=3G only (no MemoryMax), like the reporter's MemoryHigh:
  memory.max=max memory.high=3221225472
  totalmem MiB = 58987 heap_size_limit MiB = 1728
--- reporter's exact unit properties MemoryHigh=3G MemoryMax=3800M:
  memory.max=3984588800 memory.high=3221225472
  totalmem MiB = 58987 heap_size_limit MiB = 1728
--- MemoryMax on the PARENT cgroup only (child cgroup nested inside a limited scope): does node see it?
/usr/bin/bash: -c: line 1: syntax error near unexpected token `('
/usr/bin/bash: -c: line 1: `me=/sys/fs/cgroup$(cut -d: -f3 /proc/self/cgroup); mkdir -p $me/child 2>/dev/null && echo $ > $me/child/cgroup.procs 2>/dev/null; echo "  own cgroup memory.max=$(cat /sys/fs/cgroup$(cut -d: -f3 /proc/self/cgroup)/memory.max) parent memory.max=$(cat $me/memory.max)"; node -e const v8=require("v8");const os=require("os");console.log("  totalmem MiB =",Math.round(os.totalmem()/1048576),"heap_size_limit MiB =",Math.round(v8.getHeapStatistics().heap_size_limit/1048576))'