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### Author: Dag Wieers <dag$wieers,com> class dstat_plugin(dstat): """ Provide CPU information related to the dstat process. This plugin shows the CPU utilization for the dstat process itself, including the user-space and system-space (kernel) utilization and a total of both. 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 cpu' self.vars = ('user', 'system', 'total') self.type = 'd' self.width = 4 self.scale = 100 def extract(self): res = resource.getrusage(resource.RUSAGE_SELF) self.set2['user'] = float(res.ru_utime) self.set2['system'] = float(res.ru_stime) self.set2['total'] = float(res.ru_utime) + float(res.ru_stime) for name in self.vars: self.val[name] = (self.set2[name] - self.set1[name]) * 1000.0 / elapsed if step == op.delay: self.set1.update(self.set2) # vim:ts=4:sw=4:et