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Poor IIS Performance

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by nate from ri

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I had a website running on IIS4 with excellent performance. I moved it to a faster box with Win2k and IIS5 and now the speed is far slower. There is no bandwidth throttling, minimal use of resources (memory, paging, disk, cpu, bandwidth), very fewusers. Normal access to this box is fast. Just the web site is slow. This is a powerful server with very little load on it... what could cause this slowdown?

5 replies

by ebob

(I don't have access to a W2KS at the moment, so please pardon the necessary vagueness that follows...)

There is a Control Panel item buried in "System" or "Services", just as in NT4, that deals with performance. I would look here first. Typical options (as I recall) are "Optimise for file sharing", "Optimise for network application", etc. MS makes some recommendations (see their KB or TechNet). If you can afford it, just try the various options, with some suitable before and after benchmarks.

I'd also run PERFMON, and do some benchmarking on the Network connection to be 110% sure that there isn't something "funny" going on back there. Especially keep an eye out when running ASP or CF pages and/or any sort of data access (if you havesuch things).

by lucast

I had a similar situation after install W2K SP1 onto a new web server. After installing that service pack, the site crawled! I backed the service pack out and boom, performance was once again great.

I'm still working on what the true cause of this symptom was, but no luck yet.

If you have W2K service pack 1 installed, and this is not a production box, try backing the service pack out.

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