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Diffstat (limited to 'services/console/lib/procmem/proc.py')
-rw-r--r-- | services/console/lib/procmem/proc.py | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/services/console/lib/procmem/proc.py b/services/console/lib/procmem/proc.py new file mode 100644 index 0000000..729aa13 --- /dev/null +++ b/services/console/lib/procmem/proc.py @@ -0,0 +1,100 @@ +#!/usr/bin/env python + +import sys, os +import string + +class ProcInfo: + + dir_path = "/proc/" # Our cute Proc File System + status_file = "status" + stat_file = "stat" + + proc_list = [] # Our PID list :D + proc_info = [] # + + def __init__(self): + self.proc_list = self.Get_PID_List() + + # Returns Process List + def Get_PID_List(self): + list = [] + + # Exists our procfs ? + if os.path.isdir(self.dir_path): + # around dir entries + for f in os.listdir(self.dir_path): + if os.path.isdir(self.dir_path+f) & str.isdigit(f): + list.append(int(f)) + + return list + + def MemoryInfo(self, pid): + # Path + pidfile = self.dir_path + str(pid) + "/stat" + try: + infile = open(pidfile, "r") + except: + print "Error trying " + pidfile + return None + + # Parsing data , check 'man 5 proc' for details + data = infile.read().split() + + infile.close() + + state_dic = { + 'R': 'Running', + 'S': 'Sleeping', + 'D': 'Disk sleep', + 'Z': 'Zombie', + 'T': 'Traced/Stopped', + 'W': 'Paging' + } + + # user and group owners + pidstat = os.stat(pidfile) + + info = { + 'pid': int(data[0]), # Process ID + 'name': data[1].strip('()'), # Process name + 'state': data[2], # Process State, ex: R|S|D|Z|T|W + 'state_name': state_dic[data[2]], # Process State name, ex: Running, sleeping, Zombie, etc + 'ppid': int(data[3]), # Parent process ID + 'utime': int(data[13]), # Used jiffies in user mode + 'stime': int(data[14]), # Used jiffies in kernel mode + 'start_time': int(data[21]), # Process time from system boot (jiffies) + 'vsize': int(data[22]), # Virtual memory size used (bytes) + 'rss': int(data[23])*4, # Resident Set Size (bytes) + 'user_id': pidstat.st_uid, # process owner + 'group_id': pidstat.st_gid # owner group + } + + return info + + + # Returns the CPU usage expressed in Jiffies + def get_CPU_usage(self, cpu_hz, used_jiffies, start_time): + + # Uptime info + uptime_file = self.dir_path + "/uptime" + try: + infile = file(uptime_file, "r") + except: + print "Error trying uptime file" + return None + + uptime_line = infile.readline() + uptime = string.split(uptime_line, " ",2) + + infile.close() + + # System uptime, from /proc/uptime + uptime = float(uptime[0]) + + # Jiffies + avail_jiffies = (uptime * cpu_hz) - start_time + + cpu_usage = {'used_jiffies': used_jiffies, 'avail_jiffies': avail_jiffies} + + return cpu_usage + |