76 lines
2.0 KiB
Python
76 lines
2.0 KiB
Python
from glob import glob
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import re
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KTHREADD_PID = 2
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PAT_REMOVE_PROC_SPACES = re.compile(r'(\([^\)]+\))')
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def procs():
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# Get uid->name mapping
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users = {}
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with open('/etc/passwd', 'r') as passwd:
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while True:
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line = passwd.readline()
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if not line:
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break
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uname,x,uid,gid,opts,home,shell = line.split(":")
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users[int(uid)]=uname
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# Get gid->groupname mapping
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groups = {}
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with open('/etc/group', 'r') as group:
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while True:
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line = group.readline()
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if not line:
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break
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gname,x,gid,y = line.split(":")
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groups[int(gid)]=gname
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num_procs = 0
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num_threads = 0
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num_kthreads = 0
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for f in glob('/proc/[0-9]*/stat'):
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try:
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with open(f, "r") as statfile:
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# Read stat info
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stat = statfile.read().strip()
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# Fix spaces in process names
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stat = PAT_REMOVE_PROC_SPACES.sub("PROCNAME", stat)
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stat = stat.split(" ")
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proc_id = int(stat[0])
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proc_parent = int(stat[3])
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if proc_parent == KTHREADD_PID:
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num_kthreads+=1
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else:
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num_procs+=1
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num_threads += int(stat[19])
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except Exception as e:
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print(e)
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print("Failed to open %s" % f)
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yield {"procs": num_procs, "threads":num_threads, "kthreads": num_kthreads}
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mapping = {
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"procs": {
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"properties": {
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"procs": {
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"type": "integer"
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},
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"threads": {
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"type": "integer"
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},
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"kthreads": {
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"type": "integer"
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}
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}
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}
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}
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if __name__ == '__main__':
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for stats in procs():
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print("%s procs %s kthreads %s threads" % (stats["procs"], stats["kthreads"], stats["threads"]))
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