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How many threads to create and when?

Asked 2009-02-04T07:52:10.047
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I have a networking Linux application which receives RTP streams from multiple destinations, does very simple packet modification and then forwards the streams to the final destination.

How do I decide how many threads I should have to process the data? I suppose, I cannot open a thread for each RTP stream as there could be thousands. Should I take into account the number of CPU cores? What else matters? Thanks.

c++ linux multithreading network-programming
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Listen to the people advising you to use libevent (or OS specific utilities such as epoll/kqueue). In the case of many connections this is an absolute must because, like you said, creating threads will be an enormous perfomance hit, and select() also doesn't quite cut it.

answered 2009-02-04T08:55:50.967

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