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### Author: Dag Wieers <dag$wieers,com> class dstat_plugin(dstat): """ Provide more information related to the dstat process. The dstat cputime is the total cputime dstat requires per second. On a system with one cpu and one core, the total cputime is 1000ms. On a system with 2 cores the total is 2000ms. It may help to vizualise the performance of Dstat and its selection of plugins. """ def __init__(self): self.name = 'dstat' self.vars = ('cputime', 'latency') self.type = 'd' self.width = 4 self.scale = 100 self.open('/proc/%s/schedstat' % ownpid) def extract(self): l = self.splitline() # l = linecache.getline('/proc/%s/schedstat' % self.pid, 1).split() self.set2['cputime'] = long(l[0]) self.set2['latency'] = long(l[1]) for name in self.vars: self.val[name] = (self.set2[name] - self.set1[name]) * 1.0 / elapsed if step == op.delay: self.set1.update(self.set2) # vim:ts=4:sw=4:et