Tools for debugging on users machines?

[envo]

We have an intranet site which we upgraded and rolled out a few months back. Users complain it hangs when they're typing/is slow.

None of the dev's here can find the problem, fiddler shows normal (quite fast) behavior. When the user wants to show us the behavior, it works fine. I've witnessed the issue, but can't find anything on there that can block or make their machine stall.

Any advice on a tool that can monitor the user so we can pick up when/if and where the slowdown actually happens?

 

[gregmcc]

probably wireshark will do the trick, but if you can't interpret network dumps its of no use to you.
You could also try live headers and see if it shows any errors.

 

[MagicDude4Eva]

Look at something which can measure user front-end time (i.e. New Relic APM browser instrumentation). Another tool is Dynatrace (http://www.dynatrace.com/en/index.html)

 

[envo]

Thanks, I'll check it out. We also suspect malware might be the issue as this is nationwide, however only 2 users have reported this being slow

 

[whatwhat]

Depends on what is timing out.

Maybe just add google analytics to the pages.

 

[MagicDude4Eva]

Depends on what is timing out.

Maybe just add google analytics to the pages.

GA is not going to help, as it is not even tracking realtime. You need to use some browser APM/RUM tool to get to the bottom of it. New Relic will certainly help you.