On Jul 31, 2013 4:19 AM, "zipxing" <zipx...@hotmail.com> wrote:
>
> Great! pypy take 20% cpu, 3x fast than cpython!
> Thanks!
>
> A little problem: cjson and ujson can't install to pypy...
What's wrong with the builtin json module?
> ZipXing
>
> ________________________________
> > From: _...@lvh.io
> > Date: Tue, 30 Jul 2013 13:09:33 +0200
> > To: twisted-python@twistedmatrix.com
> > Subject: Re: [Twisted-Python] transport.write performance.
> >
> > Hi zipxing,
> >
> > You don't mention the interpreter. Is it CPython? What kind of results
> > do you get trying it on PyPy?
> >
> > Also, you don't need to specify epollreactor. Recent versions of
> > twisted will automagically choose the appropriate backend. I fixed this
> > and some other cleanups and got:
> >
> > ----
> > from time import clock
> > from twisted.internet import protocol, reactor
> > from twisted.protocols import basic
> >
> > class MeasuringEchoProtocol(basic.LineReceiver):
> > MEASUREMENT_INTERVAL = 1000
> >
> > def lineReceived(self, data):
> > self.factory.requests += 1
> > if self.factory.requests % self.MEASUREMENT_INTERVAL == 0:
> > print "RPS: {0}".format(self.factory.requests / clock())
> >
> > self.transport.write(data)
> >
> >
> >
> > class ServerFactory(protocol.ServerFactory):
> > protocol = MeasuringEchoProtocol
> >
> > def __init__(self):
> > self.requests = 0
> >
> >
> >
> > def main():
> > reactor.listenTCP(9976, ServerFactory())
> > clock()
> > reactor.run()
> >
> > if __name__ == '__main__':
> > main()
> > ----
> >
> > Keep in mind that due to setup time few requests get handled right when
> > it starts, so the server RPS will take some time to balance out. On my
> > wimpy laptop on battery power, that was around 420.274404782.
> >
> > cheers
> > lvh
> >
> > _______________________________________________ Twisted-Python mailing
> > list Twisted-Python@twistedmatrix.com
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