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Your IP : 18.224.67.58
| Current Path : /usr/share/dstat/ |
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| Current File : //usr/share/dstat/dstat_top_cpu.py |
### Authority: Dag Wieers <dag@wieers.com>
class dstat_plugin(dstat):
"""
Most expensive CPU process.
Displays the process that uses the CPU the most during the monitored
interval. The value displayed is the percentage of CPU time for the total
amount of CPU processing power. Based on per process CPU information.
"""
def __init__(self):
self.name = 'most expensive'
self.type = 's'
self.width = 16
self.scale = 0
self.vars = ('cpu process',)
self.pid = str(os.getpid())
self.pidset1 = {}; self.pidset2 = {}
def extract(self):
self.val['max'] = 0.0
self.val['cpu process'] = ''
for pid in os.listdir('/proc/'):
try:
### Is it a pid ?
int(pid)
### Filter out dstat
if pid == self.pid: continue
### Using dopen() will cause too many open files
l = open('/proc/%s/stat' % pid).read().split()
except ValueError:
continue
except IOError:
continue
if len(l) < 15: continue
### Reset previous value if it doesn't exist
if not self.pidset1.has_key(pid):
self.pidset1[pid] = 0
self.pidset2[pid] = int(l[13]) + int(l[14])
usage = (self.pidset2[pid] - self.pidset1[pid]) * 1.0 / elapsed / cpunr
### Is it a new topper ?
if usage < self.val['max']: continue
name = l[1][1:-1]
self.val['max'] = usage
self.val['pid'] = pid
self.val['name'] = getnamebypid(pid, name)
if self.val['max'] != 0.0:
self.val['cpu process'] = '%-*s%s' % (self.width-3, self.val['name'][0:self.width-3], cprint(self.val['max'], 'f', 3, 34))
### Debug (show PID)
# self.val['cpu process'] = '%*s %-*s' % (5, self.val['pid'], self.width-6, self.val['name'])
if step == op.delay:
self.pidset1.update(self.pidset2)
def showcsv(self):
return '%s / %d%%' % (self.val['name'], self.val['max'])
# vim:ts=4:sw=4:et