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### Dstat most expensive process plugin ### Displays the name of the most expensive process ### ### Authority: dag@wieers.com global cpunr class dstat_plugin(dstat): def __init__(self): self.name = 'most waiting for' self.vars = ('child process',) self.type = 's' self.width = 16 self.scale = 0 def extract(self): self.set2 = {} self.val['max'] = 0.0 for pid in proc_pidlist(): try: ### Using dopen() will cause too many open files l = proc_splitline('/proc/%s/stat' % pid) except IOError: continue if len(l) < 15: continue ### Reset previous value if it doesn't exist if not self.set1.has_key(pid): self.set1[pid] = 0 self.set2[pid] = int(l[15]) + int(l[16]) usage = (self.set2[pid] - self.set1[pid]) * 1.0 / elapsed / cpunr ### Is it a new topper ? if usage <= self.val['max']: continue self.val['max'] = usage self.val['name'] = getnamebypid(pid, l[1][1:-1]) self.val['pid'] = pid ### Debug (show PID) # self.val['process'] = '%*s %-*s' % (5, self.val['pid'], self.width-6, self.val['name']) if step == op.delay: self.set1 = self.set2 def show(self): if self.val['max'] == 0.0: return '%-*s' % (self.width, '') else: return '%s%-*s%s' % (theme['default'], self.width-3, self.val['name'][0:self.width-3], cprint(self.val['max'], 'p', 3, 34)) def showcsv(self): return '%s / %d%%' % (self.val['name'], self.val['max']) # vim:ts=4:sw=4:et