Memory issues with TMTV mode

[BrandonDatUHN]

I posted this video before https://watch.screencastify.com/v/poYbBEarUdmzvUhty0J3 which shows what is happening but since it didn't seem to happen on each machine we tested I've done some deeper digging.

We made a google doc to log our tests and I'm hoping the error in the console might point you in the right direction. of the 4 computers we tested on 2 had the error and 2 did not. Interestingly the two that had it do not have GPU and the two that did not do. All had 16 GB RAM.

https://docs.google.com/document/d/1hVltQfBsK9cK-jvB4aBjeAvHIkxF3uDl1Ij8cKk-mIo/edit?usp=sharing

[sedghi]

this is a great documented step by step report. Thanks for taking time in filling it.

For each setup can you put a screenshot of the following page? https://webglreport.com/?v=2

[BrandonDatUHN]

Posting some more information here about this bug after using the chrome task manager. It appears that the memory that is causing the crash is from GPU Process. (This is on my laptop with integrated graphics)

Some advice from the web suggests that if you turn off "use hardware acceleration when available " in chrome the problem will go away and that seems to be correct.

This is a screenshot loading WITH hardware acceleration enabled

and here is one without

Here is the webglreport

Additionally, you asked for the memory dumps/screenshots before and after opening a study. Here they are along with screen shots (this is with hardware acceleration off.

Before loading:

After loading in viewer

Back at the study list

The memory snapshots can be found here

https://fileshare.uhn.ca/download/82413d55-c71a-4b2c-b6fe-984a558ada84
Please note that this file upload will expire in 30 days.

[BrandonDatUHN]

This issue still exists on version 3.3 however I can't reproduce on the demo anymore because I get this error instead.

on our release we set the number of workers to 1 which removes that error but the one above still exists,

[sedghi]

#3207