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How to deal with high concurrency swoole
①Reactor model introduced
IO multiplexing using asynchronous non-blocking program model classic Reactor, Reactor name suggests is the meaning of the reactor, which itself does not process any data transceiver. Just can monitor a socket (can also be a conduit, eventfd, signal) handles events change.
Reactor just one event generator, the actual operation of the socket handle, such as connect / accept, send / recv, close the callback is completed.
②swoole architecture
swoole Reactor + multi-threaded multi-process Worker.
When a request arrives, swoole is treated:
Because the epoll based reactor, each reactor can handle numerous connection requests. So, swoole to easily handle the high concurrency.