Created
November 5, 2019 07:11
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| import subprocess | |
| import re | |
| from tornado import gen, web | |
| from notebook.base.handlers import APIHandler | |
| import psutil | |
| KERNEL_REGEX = re.compile(r'.+kernel-(.+)\.json') | |
| PID_REGEX = re.compile(r'(\d+).+') | |
| class MemHand(APIHandler): | |
| ''' | |
| get memory of each kernel | |
| ''' | |
| @web.authenticated | |
| @gen.coroutine | |
| def get(self): | |
| ps = subprocess.Popen(('ps', 'ax'), stdout=subprocess.PIPE) | |
| output = ps.communicate()[0] | |
| result={} | |
| for line in output.split('\n'): | |
| if 'kernel-' in line: | |
| kernel_id = re.sub(KERNEL_REGEX, r'\1', line) | |
| pid = int(re.sub(PID_REGEX, r'\1', line)) | |
| process = psutil.Process(pid) | |
| mem = int(process.memory_info()[0]) | |
| result[kernel_id]={'pid':pid,'memory': mem} | |
| self.finish(result) | |
| default_handlers = [ | |
| (r"/api/kernel/memory", MemHand) | |
| ] |
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