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I develop an PHP/Ajax based live chat system and host in simple Virtualmin Based CentOS server, I want to know what type of changes we do in server that make our chatting process fast.

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closed as off topic by jscott, Michael Hampton, MikeyB, Zypher Feb 13 '13 at 6:29

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There is nowhere near enough information there for us to even guess. What have you tried so far to diagnose the slowness? – Grant Feb 13 '13 at 4:06


And don't use PHP.

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