class RequestQueue(Process):
def reset(self):
self.queue = []
self.size = Checkable(0)
self.pending = TSeries(storing=True, time_fnc=self.sim.clock.get)
self.qtime = Tally() # queueing time
self.stime = Tally() # service time
self.rtime = Tally() # response time
def put(self, io_request):
self.queue.append(io_request)
self.size.set(len(self.queue))
self.pending.collect(len(self.queue))
def get(self):
io_request = self.queue.pop(0)
self.size.set(len(self.queue))
self.pending.collect(len(self.queue))
return io_request
def collect(self, io_request):
# Collect indicators about a departing request.
self.qtime.collect(io_request.queueing_time())
self.stime.collect(io_request.service_time())
self.rtime.collect(io_request.response_time())
def finalize(self):
print "Mean queue size (weighted):", self.pending.wmean()
print "Mean queueing time:", self.qtime.mean()
print "Mean service time:", self.stime.mean()
print "Mean responese time:", self.rtime.mean()
self.plotter = Plotter()
self.pending.run_chart(axes=self.plotter, label="Pending requests", legend=True)
class Queue(Process):
content = None
def reset(self):
self.content = []
self.size = Checkable(0)
self.size_tseries = TSeries(time_fnc=self.sim.clock.get, storing=True)
self.size_tseries.collect(0)
self.category_ftable = FTable()
Consumer.waiting_time.clear()
def status(self):
return self.content
def put(self, obj):
self.content.append(obj)
self.size.set(len(self.content))
self.size_tseries.collect(len(self.content))
self.category_ftable.collect(obj)
def get(self):
obj = self.content.pop(0)
self.size.set(len(self.content))
self.size_tseries.collect(len(self.content))
return obj
def finalize(self):
p = self.plotter = Plotter(rows=1, cols=2)
Consumer.waiting_time.histogram(axes=p, title="Consumer waiting time")
self.category_ftable.pie_chart(axes=p, title="Production distribution")
self.size_tseries.run_chart(axes=p, title="Queue size time series",
label="Queue size", color="green", legend=True)
class VirusSim(Simulator):
def reset(self):
self.clock.precision = 0.5
self.members.clear()
Virus.autoname_reset()
for _ in xrange(Virus.initial_population):
self.members.add(Virus())
self.count = TSeries(storing=True, time_fnc=self.clock.get)
self.count.collect(len(self.members))
@Chain
def initialize(self):
# Print time if trace is disabled.
if not self.stack.trace:
while True:
print "%10.6f: %d viruses" % (self.time, len(self.members))
yield 10
def finalize(self):
axes = self.count.run_chart(label="Registered growth",
title="Virus population",
legend=True)
self.plotter = axes.figure.plotter
print "\n" + self.count.report()
