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dstat_net_packets.py
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### Author: Dag Wieers <dag@wieers.com> class dstat_plugin(dstat): """ Number of packets received and send per interface. """ def __init__(self): self.nick = ('#recv', '#send') self.type = 'f' self.width = 5 self.scale = 1000 self.totalfilter = re.compile('^(lo|bond\d+|face|.+\.\d+)$') self.open('/proc/net/dev') self.cols = 2 def discover(self, *objlist): ret = [] for l in self.splitlines(replace=':'): if len(l) < 17: continue if l[2] == '0' and l[10] == '0': continue name = l[0] if name not in ('lo', 'face'): ret.append(name) ret.sort() for item in objlist: ret.append(item) return ret def vars(self): ret = [] if op.netlist: varlist = op.netlist elif not op.full: varlist = ('total',) else: varlist = self.discover # if len(varlist) > 2: varlist = varlist[0:2] varlist.sort() for name in varlist: if name in self.discover + ['total', 'lo']: ret.append(name) if not ret: raise Exception, "No suitable network interfaces found to monitor" return ret def name(self): return ['pkt/'+name for name in self.vars] def extract(self): self.set2['total'] = [0, 0] for l in self.splitlines(replace=':'): if len(l) < 17: continue if l[2] == '0' and l[10] == '0': continue name = l[0] if name in self.vars : self.set2[name] = ( long(l[2]), long(l[10]) ) if not self.totalfilter.match(name): self.set2['total'] = ( self.set2['total'][0] + long(l[2]), self.set2['total'][1] + long(l[10])) if update: for name in self.set2.keys(): self.val[name] = ( (self.set2[name][0] - self.set1[name][0]) * 1.0 / elapsed, (self.set2[name][1] - self.set1[name][1]) * 1.0 / elapsed, ) if step == op.delay: self.set1.update(self.set2)