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 From: Stefan Wuebbe
  Where is Stefan Wuebbe?
 Stefan Wuebbe
 To: Scott Brush
  Where is Scott Brush?
 Pennsylvania - United States
 Scott Brush
Subject: RE: Intermittent application freezes
Thread ID: 395726 Message ID: 395728 # Views: 60 # Ratings: 1
Version: Visual FoxPro 9 Category: Network and Computer Management
Date: Friday, January 17, 2014 5:17:23 PM         

> Scott Brush
> www.scottmbrush.com
> I'm maintaining a VFP application over a network. My users have an intermittent issue where suddenly, their screens will freeze for a minute or two and then resume working. No errors are reported by the system when this happens. Does anyone know what might be causing this?

Hi Scott,

Since that does not sound (VFP)normal, I'd probably ask for additional info,
for example does that happen with all clients at the same time (more or less), or certain groups of clients but not others?
Or rather randomly to single client machines so that one user must wait while the neighbor is happily typing?

If the latter, I would assume a code mistake(s), search for user-activity patterns in order to be hopefully able to get some repro scenarios, so that via something like event-tracing certain methods might turn out to be the bottlenecks, like data-access queries retrieving too many rows or certain shared tables not being properly indexed and so forth.

If the former, I would ask for the backend type and connectivity details, try to watch the network hardware and traffic rate patterns, say broken switches, unusual network activity from other sources at certain times, and so forth



Intermittent application freezes Posted by Scott Brush @ 1/17/2014 3:49:32 PM
RE: Intermittent application freezes Posted by Stefan Wuebbe @ 1/17/2014 5:17:23 PM
RE: Intermittent application freezes Posted by Paul Gibson @ 1/17/2014 6:07:26 PM