CPU selection so Sage doesn't crash

[hoosierengineer]

For many years I have put up with the SageTV problem where it occasionally crashes during fast forward/rewind if captions are enabled, requiring the computer to be reset in order to regain FF/RW functionality (Intel Kaby Lake with integrated graphics). I believe with an ancient AMD processor, it did not crash, but hung for 30 seconds or so every other time when FF/RW were pressed (going from memory, quite a number of years ago).

Now, it's time to upgrade my computers.

Does anybody know if the crashing problem exists with the latest AMD products (e.g. Ryzen)?

[jt4242]

I have AMD Ryzen 7 and no problems.

[JustFred]

The symptoms described (especially the 30 second hang) sound like a classic case of Java Heap being too small.

With a few details about your system (which OS, how much system memory, Heap size, which version of Sage, which plugins are installed) someone might be able to offer some insight.

[hoosierengineer]

Windows 10 Pro 64, 16 GB, (how do I determine heap size?), Sage 7 and 9 (have tried various builds), no plugins.

Update- I have configured Sage to use VMR9 as the default video renderer, and things seemed to have stabilized. I will need to spend a few hours of testing to verify, but perhaps the latest Windows pushes have resolved the issue.

The 30 second hang was resolved when I moved my systems from Athlon to Skulltrail and Skylake/Kaby Lake. That's when the crashes started.

I thank you for your response!

[JustFred]

Originally Posted by hoosierengineer

how do I determine heap size?

In the Sage UI: Setup -> System Information. Then scroll down a couple of screen-fulls, just above the System Configuration Details heading you should see "JVM Heap Size (Used/Total/Max)". That Max value should be somewhere around 1038 MB, which is the maximum possible value that can be set. If it's significantly smaller than that value, increase it. A forum search will provide the details of how to do so.