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Thread Application freezes
Tue, Nov 15 2022 3:37 AMPermanent Link

Ronald

Hi,
I have an developed an application that worked fine for years on mij VPS server. There were never any problems, but now I have a 2 clients that tell me that the application sometimes freezes. Both of them use Chromebooks, does anyone have any experience with this problem.

Greetings,
Ronald
Tue, Nov 15 2022 3:52 PMPermanent Link

erickengelke

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Ronald wrote:
>  I have an developed an application that worked fine for years on mij VPS server.
> There were never any problems, but now I have a 2 clients that tell me that the application sometimes freezes.
> Both of them use Chromebooks, does anyone have any experience with this problem.

Hi, I don't know about the problem.  I'm not running into that on any of my applications.

But I just wanted to say you can download Chrome OS for free and run it on almost any INTEL/AMD computer using a boot USB stick to "try it out" without installing for real.  That should give you a similar environment to your clients for testing.

Erick
EWB Programming Books and Component Library
http://www.erickengelke.com
Mon, Nov 21 2022 12:00 PMPermanent Link

Ronald

erickengelke wrote:

>Hi, I don't know about the problem.  I'm not running into that on any of my applications.

Hi Erick,
I bought a Chromebook and I have tested the application a lot now, but I cannot reproduce the problem. The client describes something that looks like the server is not responding, but the server does not have performanceproblems and my other clients have no problems. So it is still a mystery.

Greetings,Ronald
Mon, Nov 21 2022 1:59 PMPermanent Link

Alan Questell

Richmond Community College

I have owned lots of Chromebooks and a some of them were very quirky for different reasons. One would constantly "pause" WiFi so that it appeared to be connected but nothing could come through. Normal applications worked okay, most of the time, but watching a video was an awful experience. I never could fix it.

What I would do is ask if you could borrow one of the Chromebooks so you can actually view the Chrome OS Debug info and see what is happening on that particular laptop while your application is running.

Ronald wrote:

erickengelke wrote:

>Hi, I don't know about the problem.  I'm not running into that on any of my applications.

Hi Erick,
I bought a Chromebook and I have tested the application a lot now, but I cannot reproduce the problem. The client describes something that looks like the server is not responding, but the server does not have performanceproblems and my other clients have no problems. So it is still a mystery.

Greetings,Ronald
Mon, Nov 21 2022 4:57 PMPermanent Link

erickengelke

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Alan Questell wrote:

> I have owned lots of Chromebooks and a some of them were very quirky for different reasons.

One of the reasons for the quirkiness is because they are built using the cheapest possible hardware...  Cut corners then try to offer a good experience


> One would constantly "pause" WiFi so that it appeared to be connected but nothing could come through.
> Normal applications worked okay, most of the time, but watching a video was an awful experience.
> I never could fix it.

having another machine constantly ping the Chromebook might detect such networking hardware anomalies too.  On a decent wifi you shouldn't lose any ping (ICMP ECHO) packets.

Erick
EWB Programming Books and Component Library
http://www.erickengelke.com
Mon, Nov 21 2022 4:57 PMPermanent Link

erickengelke

Avatar

Alan Questell wrote:

> I have owned lots of Chromebooks and a some of them were very quirky for different reasons.

One of the reasons for the quirkiness is because they are built using the cheapest possible hardware...  Cut corners then try to offer a good experience


> One would constantly "pause" WiFi so that it appeared to be connected but nothing could come through.
> Normal applications worked okay, most of the time, but watching a video was an awful experience.
> I never could fix it.

having another machine constantly ping the Chromebook might detect such networking hardware anomalies too.  On a decent wifi you shouldn't lose any ping (ICMP ECHO) packets.

Erick
EWB Programming Books and Component Library
http://www.erickengelke.com
Wed, Nov 23 2022 10:17 AMPermanent Link

Ronald

erickengelke wrote:

Alan Questell wrote:

Thank you.
Could it maybe be a problem with garbagecollection? My application manipulates strings a lot. If so, could the component TStringBuilder be of any help? Maybe that prevents the build up of garbage?

Ronald
Fri, Nov 25 2022 12:15 PMPermanent Link

Alan Questell

Richmond Community College

I doubt it, but it's hard to know for sure without seeing what's actually happening. You could try to go through your code and make sure you're disposing of things properly and see if that helps, but I doubt it. Especially if it's limited to Chromebooks only.

Ronald wrote:

erickengelke wrote:

Alan Questell wrote:

Thank you.
Could it maybe be a problem with garbagecollection? My application manipulates strings a lot. If so, could the component TStringBuilder be of any help? Maybe that prevents the build up of garbage?

Ronald
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