Recommended hardware to achieve 150 concurrent connectios
I don't need exact figures--estimates will due fine.
What type of hardware are we looking at to support 150 concurrent connections in a typical php/mysql CMS environment?
In general how much traffic is a site getting if it's averaging 150 concurrent connections during it's peak?
I'm just trying to get a general idea of what type of setup I'll need.
I think a big problem here is that there is no such thing as a 'typical php/mysql CMS environment', let alone a typical hosting environment. Things will vary enormously I think.
On a raw level I recall that Litespeed have said that the 150 connection limit should be enough to serve several miilion hits per day.
This makes sense when you do some [very crude] maths (eg if one connection serves up three hits and lasts 15 seconds, 150 concurrent connections = 600 connections/min serving up 1800 hits/min = about 36000 connections/hour serving 108000 hits/hr = 2.5m hits/864,000 connections per 24hrs).
The 150 theoretical concurrent connections up front to your web-server may only the tip of the iceberg, however.
If those 150 concurrent connections are going through to a PHP app that is then sending many of those connections through to a database, you'd have to think about that too. The chances are very high that the database will be more demanding of system resources than the web server.
The 150 connection limit is a hard ceiling - if you are thinking of a 150 concurrent connections *average* peak, as opposed to 150 connections absolute peak load, you already need the Enterprise Edition otherwise you will potentially be dumping a lot of traffic.
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