I'm using epoll reactor and sample HTTP Proxy realization. From another process i'm executing ~30 HTTP requests per second and twisted process is consuming 10% cpu
The profiler output is: 937706 function calls (934675 primitive calls) in 59.988 CPU seconds Ordered by: cumulative time List reduced from 312 to 15 due to restriction <15> ncalls tottime percall cumtime percall filename:lineno(function) 1 0.000 0.000 59.988 59.988 base.py:1167(run) 1 0.076 0.076 59.988 59.988 base.py:1172(mainLoop) 12697 55.456 0.004 59.253 0.005 epollreactor.py:169(doPoll) 13553 0.086 0.000 3.797 0.000 log.py:71(callWithLogger) 13553 0.096 0.000 3.691 0.000 log.py:66(callWithContext) 13553 0.047 0.000 3.481 0.000 context.py:117(callWithContext) 13553 0.067 0.000 3.426 0.000 context.py:61(callWithContext) 13552 0.095 0.000 3.359 0.000 posixbase.py:544(_doReadOrWrite) 5454 0.097 0.000 1.736 0.000 tcp.py:182(doRead) 5453 0.167 0.000 1.639 0.000 basic.py:543(dataReceived) 12697 0.095 0.000 0.587 0.000 base.py:762(runUntilCurrent) 4453 0.025 0.000 0.574 0.000 http.py:495(rawDataReceived) 6000 0.036 0.000 0.547 0.000 http.py:1515(lineReceived) 2000 0.029 0.000 0.454 0.000 tcp.py:371(doConnect) 5098 0.104 0.000 0.428 0.000 abstract.py:212(doWrite) 937706 function calls (934675 primitive calls) in 59.988 CPU seconds Ordered by: internal time List reduced from 312 to 15 due to restriction <15> ncalls tottime percall cumtime percall filename:lineno(function) 12697 55.456 0.004 59.253 0.005 epollreactor.py:169(doPoll) 59101 0.277 0.000 0.277 0.000 <string>:1(fileno) 5098 0.252 0.000 0.252 0.000 tcp.py:212(writeSomeData) 24453 0.198 0.000 0.198 0.000 __init__.py:1230(getEffectiveLevel) 5453 0.167 0.000 1.639 0.000 basic.py:543(dataReceived) 5098 0.104 0.000 0.428 0.000 abstract.py:212(doWrite) 5454 0.097 0.000 1.736 0.000 tcp.py:182(doRead) 13553 0.096 0.000 3.691 0.000 log.py:66(callWithContext) 12697 0.095 0.000 0.587 0.000 base.py:762(runUntilCurrent) 13552 0.095 0.000 3.359 0.000 posixbase.py:544(_doReadOrWrite) 13553 0.086 0.000 3.797 0.000 log.py:71(callWithLogger) 1 0.076 0.076 59.988 59.988 base.py:1172(mainLoop) 16556 0.074 0.000 0.074 0.000 context.py:86(getContext) 17451 0.073 0.000 0.094 0.000 epollreactor.py:71(_add) 17098 0.068 0.000 0.085 0.000 epollreactor.py:112(_remove) What is wrong? Why twisted perfomance is so poor here? -- Ilya Biin _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
