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### Author: Dag Wieers <dag@wieers.com>
class dstat_plugin(dstat):
"""
Top interrupt
Displays the name of the most frequent interrupt
"""
def __init__(self):
self.name = 'most frequent'
self.vars = ('interrupt',)
self.type = 's'
self.width = 20
self.scale = 0
self.intset1 = [ 0 ] * 256
self.open('/proc/stat')
self.names = self.names()
def names(self):
ret = {}
for line in dopen('/proc/interrupts'):
l = line.split()
if len(l) <= cpunr: continue
l1 = l[0].split(':')[0]
### Cleanup possible names from /proc/interrupts
l2 = ' '.join(l[cpunr+2:])
l2 = l2.replace('_hcd:', '/')
l2 = re.sub('@pci[:\d+\.]+', '', l2)
ret[l1] = l2
return ret
def extract(self):
self.output = ''
self.val['total'] = 0.0
for line in self.splitlines():
if line[0] == 'intr':
self.intset2 = [ long(int) for int in line[3:] ]
for i in range(len(self.intset2)):
total = (self.intset2[i] - self.intset1[i]) * 1.0 / elapsed
### Put the highest value in self.val
if total > self.val['total']:
if str(i+1) in self.names.keys():
self.val['name'] = self.names[str(i+1)]
else:
self.val['name'] = 'int ' + str(i+1)
self.val['total'] = total
if step == op.delay:
self.intset1 = self.intset2
if self.val['total'] != 0.0:
self.output = '%-15s%s' % (self.val['name'], cprint(self.val['total'], 'd', 5, 1000))
def showcsv(self):
return '%s / %f' % (self.val['name'], self.val['total'])
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