ASP.Net Custom images get a half second delay

Question

I've been working on a C# ASP.Net application that requires images to be customized by users. The images aren't very large, and so they are being stored in a database.

To facilitate loading them onto the pages, a single ASPX page has been created that depending on how it's posted to it loads a different image from the database.

The problem I've been seeing is that if a single page makes multiple requests (usually over 4), then each request starts getting a half second delay in the response.

I've added extra logging and run it through a performance analyzer and have not been able to find the source of the half second delays.

Question is:

What is this delay and how can I get rid of it?

-OR-

What is a better way of doing what I am trying to do that would avoid this entirely?

score 1 · Accepted Answer · edited May 23 '17 at 11:48

1

You're probably hitting a session lock. Disable the session if possible for these concurrent requests. For more information see:

edited May 23 '17 at 11:48

Community

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answered Jan 23 '12 at 16:17

Mauricio Scheffer

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score 0 · Answer 2 · answered Jan 23 '12 at 16:11

0

What "performance analyzer" are you referring to? Are you profiling your app? A profiler should tell you exactly where the time is going.

answered Jan 23 '12 at 16:11

Erik Funkenbusch

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I realized I was running it in Thread time mode, not wall time. Locks wouldn't consume CPU time, so they wouldn't show up as the times I was looking for. – GiskardReventlov Jan 23 '12 at 17:22

ASP.Net Custom images get a half second delay

2 Answers2