2020-04-29, 04:22 AM
I'm running into the same questions/problems. Been running OpenPlotter/OpenCPN on a PI 3 for 3 years, ending up at OpenCPN 4.8.4. It all worked great. Decided to use the enforced downtime to finally upgrade to a PI 4, OpenPlotter 2, and OpenCPN 5. It is essentially unusable.
The PI has 2GB memory, I've allocated 512 to graphics. Turned on OpenGL (and turned it off, and played with texture caching). All abysmally slow. I have 380 NOAA S-57 ENC charts of Alaska loaded, nothing else.
What's more frustrating, it is just OpenCPN. While I wait for a zoom to occur I can come over here, load Chromium, type this whole post, all on the same PI, while waiting for the zoom to complete in OpenCPN. Doesn't seem to matter whether or not I have quilting on.
One thing I do notice, when it gets this way OpenCPN CPU usage gets to 24-25%, with overall at ~30%. Almost thinking OpenCPN is maxing out one core? Not using the others?
Given all I've read, and my own experience with older versions I feel I have to be missing some very simple setting.
Suggestions?
The PI has 2GB memory, I've allocated 512 to graphics. Turned on OpenGL (and turned it off, and played with texture caching). All abysmally slow. I have 380 NOAA S-57 ENC charts of Alaska loaded, nothing else.
What's more frustrating, it is just OpenCPN. While I wait for a zoom to occur I can come over here, load Chromium, type this whole post, all on the same PI, while waiting for the zoom to complete in OpenCPN. Doesn't seem to matter whether or not I have quilting on.
One thing I do notice, when it gets this way OpenCPN CPU usage gets to 24-25%, with overall at ~30%. Almost thinking OpenCPN is maxing out one core? Not using the others?
Given all I've read, and my own experience with older versions I feel I have to be missing some very simple setting.
Suggestions?