ASP.NET Web窗体的网站性能

Question

I acquired an ASP.NET web forms website built by some contract developers. The site was pretty bad at first and ran pretty slow, but has been tweaked and in an isolated environment runs okay.

The site sits on a single (beefy) web server and connects to an Oracle database. The site is within a very large organizations data center but is not load balanced. Lately the site has received about 3-4x the traffic it typically sees and the site is crawling with about 4k unique users a day. IIS6 by the way. The IT dept. has examined the CPU and memory levels and they appear fine. I know there are some other tweaks I can make to IIS to cache static files and I am adding OutputCache to controls where it makes sense. However, what else could be the cause of a slowdown that appears to be caused by load? I'm unsure if the application pool needs more memory allocated or if the site is simply a piece of junk. I know the latter is true, but it surprises me that significant load would be a code-only issue.

Any ideas?

Answer 1

Look to see if indexes are applied to the queries/store procedures being run. Also, see if the page is doing selects or update/deletes. When you apply indexes it can slow down the deletes/update and spreeds up the selects.

Usually there are profilers in the database that can be ran on the queries and they will indicate what indexes should be applied to what table. See you Database admin to see if that can be ran on the store procedures you use.