kernels_memory.py

from pathlib import Path
import json
import os
import psutil

kernel_pids = [p.pid for p in psutil.process_iter(['pid', 'name']) if 'python' in p.info['name']]

rows = []
for pid in kernel_pids:
    process = psutil.Process(pid)
    try:
        with open(process.cmdline()[-1], "r") as f:
            d = json.load(f)
            jup = Path(d["jupyter_session"])
            mem_info = process.memory_info()
            rows.append((
                process.pid,
                pd.Timestamp(int(process.create_time()), unit="s"),
                int(mem_info.rss) >> 20,
                jup.parent,
                jup.name,
            ))
    except Exception as e:
        # raise e
        pass
df = pd.DataFrame(rows, columns=["pid","start","memMB","nbFolder","nbName"])
df