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authorMattias Andrée <maandree@operamail.com>2014-03-03 00:39:35 +0100
committerMattias Andrée <maandree@operamail.com>2014-03-03 00:39:35 +0100
commitae56e1db0fd89a6dcdd79d21685333fa49deff8a (patch)
tree039c1634c5b8cc0e195b506b8f95209ad4457fbb /src/plugins/cpu.py
parentm (diff)
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add cpu
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
-rw-r--r--src/plugins/cpu.py126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/plugins/cpu.py b/src/plugins/cpu.py
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index 0000000..be19e30
--- /dev/null
+++ b/src/plugins/cpu.py
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+# -*- python -*-
+'''
+xpybar – xmobar replacement written in python
+Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+'''
+
+
+class CPU:
+ '''
+ Retrieve processor statistics
+
+ @variable cpu_total:list<int> Accumulative processors statistics
+ @variable cpus:list<list<int>> Individual processors statistics
+ @variable intr:list<int> Counts of individual interrupts serviced since boot time
+ @variable intr_total:int Sum of `intr`
+ @variable ctxt:int The number of context switches that the system underwent.
+ @variable btime:int Boot time, in seconds since the Epoch, 1970-01-01 00:00:00 UTC
+ @variable processes:int Number of forks and clones (and similar) created since boot
+ @variable procs_running:int? Number of processes in runnable state (linux>=2.5.45)
+ @variable procs_blocked:int? Number of processes blocked waiting for I/O to complete (linux>=2.5.45)
+ @variable softirq:list<int>? Counts of individual software IRQ since boot time
+ @variable softirq_total:int? Sum of `softirq`
+ @variable fields:dict<str, list<int>> Table with all information
+ '''
+
+
+ # These contants are index in the CPU statistcs, use for example `CPU_instance.cpu[UPC.user]`
+
+ user = 0
+ '''
+ :int Time spent in user mode, in USER_HZ (normally 1/100ths of a second, it is a time not a frequency)
+ '''
+
+ nice = 1
+ '''
+ :int Time spent in user mode with low priority, in USER_HZ
+ '''
+
+ system = 2
+ '''
+ :int Time spent in system mode, in USER_HZ
+ '''
+
+ idle = 3
+ '''
+ :int Time spent in the idle task, in USER_HZ
+ '''
+
+ iowait = 4
+ '''
+ :int Time waiting for I/O to complete, in USER_HZ (linux>=2.5.41)
+ '''
+
+ irq = 5
+ '''
+ :int Time servicing interrupts, in USER_HZ (linux>=2.6.0-test4)
+ '''
+
+ softirq = 6
+ '''
+ :int Time servicing softirqs, in USER_HZ (linux>=2.6.0-test4)
+ '''
+
+ steal = 7
+ '''
+ :int Stolen time, which is the time spent in other operating systems
+ when running in a virtualized environment, in USER_HZ (linux>=2.6.11)
+ '''
+
+ guest = 8
+ '''
+ :int Time spent running a virtual CPU for guest operating systems
+ under the control of the Linux kernel, in USER_HZ (linux>=2.6.24)
+ '''
+
+ guest_nice = 9
+ '''
+ :int Time spent running a niced guest, in USER_HZ (linux>=2.6.33).
+ '''
+
+
+ def __init__(self):
+ '''
+ Constructor
+ '''
+ stat = None
+ with open('/proc/stat', 'rb') as file:
+ stat = file.read()
+ stat = stat.decode('utf-8', 'replace')
+ stat = filter(lambda x : not x == '', stat.split('\n'))
+
+ fields = {}
+ for line in stat:
+ line = list(filter(lambda x : not x == '', line.split(' ')))
+ fields[line[0]] = [int(x) for x in line[1:]]
+
+ self.cpu = fields['cpu']
+ i = 0
+ self.cpus = []
+ while ('cpu%i' % i) in fields:
+ self.cpus.append(fields['cpu%i' % i])
+ i += 1
+ self.ctxt = fields['ctxt'][0]
+ self.btime = fields['btime'][0]
+ self.processes = fields['processes'][0]
+ self.procs_running = fields['procs_running'][0] if 'procs_running' in fields else None
+ self.procs_blocked = fields['procs_blocked'][0] if 'procs_blocked' in fields else None
+ self.intr = fields['intr'][1:]
+ self.intr_total = fields['intr'][0]
+ self.softirq = fields['softirq'][1:] if 'softirq' in fields else None
+ self.softirq_total = fields['softirq'][0] if 'softirq' in fields else None
+ self.fields = fields
+