Question

I have an ASP.NET application that does a large database read. It loads up a gridview inside an update panel. In VS2008, just running on my local machine, it runs fantastically. In production (identical code, just published and put on one of our network servers), it runs slow as dirt.

Debug is set to false, so this is not the cause of the slow down. I’m not an experienced web developer, so besides that, feel free to suggest the obvious.

I have been using Firebug to determine what’s going on, and here is what that has turned up:

On production, there are around 500 requests. The timeline bar is very short. The size column varies from run to run, but is always the same for the duration of the run.

Locally, there are about 30 requests. The timeline bar takes up the entire space.

Can anyone shed some light on why this is happening and what I can do to fix it? Also, I can’t find much of anything on the web about this, so any references are helpful too.

EDIT: I forgot to mention that I am using the exact same database for both local and production environments.

EDIT: __EVENTTARGET points to the timer that updates the progress.

EDIT: Timer appears to be working – I set it to a larger interval, which shows me that the local app is processing ~50000 records/second and that the production app (same database, same code!) is processing at best ~5000 records/sec.

Back to square one, mysteriously slow app. 🙁

Answer 1

I’ve come to accept that this may be a processor issue based on this other post:

ASP.NET Website Slow Performance on production server

Thanks to everyone who helped answer.