Knowing that mimoLive is still beta, I’ll focus on BoinxTV for now with my performance issues, but I’m having the same issues with mimoLive.
For hardware, I’ve just invested in a new Mac Pro. It’s the base model with the exception that the Intel Xeon processor has been upgraded to the 6-core model. I have 2 Blackmagic Intensity 4K PCI-E cards installed into a Thunderbolt 2 PCI-E chassis. I’m currently trying to capture 1 1080p 59.94 source and 1 720p 59.94 source, but would prefer to capture both sources at 1080p. However, the performance is already dreadful with only 1 1080p source.
I’m piping the sources into a 720p 30 fps document. I have 2 lower thirds layers, 1 presenter layer and both HDMI sources in a placer layer.
BoinxTV is the only program running, or if I switch to mimoLive, then it’s the only program running on this brand new Mac Pro. However, the framerate I’m getting is dreadful. The lower thirds animate choppy when activating and deactivating the lower thirds layers. I’m not recording to disk or streaming to the Internet. The program is just sitting there running, and I activate and de-activate layers as if I was working in a regular live workflow. It’s choppy, the framerate of the video is terrible, the indicator at the top of Boinx is showing that I’m dropping tons of frames, and the ‘MEM’ indicator is showing up in red often with messages of high vram usage.
On an older less powerful “cheese grater” Mac Pro running on Mountain Lion, I didn’t really have trouble with a very similar all 720p workflow. I’m looking for ideas of what I may need to do to improve performance. My activity monitor shows almost non-existant CPU usage, and system memory usage doesn’t seem to be an issue either. I’m not terribly familiar with any methods of trying to identify the load on the GPUs or on the vram other than via the messages BoinxTV itself provides. I’m not running other apps because I want to isolate the issue. BoinxTV runs terribly, and crashes often. mimoLive doesn’t run much better. It runs slightly smoother and crashes less than BoinxTV, but still crashes too often to be useful.
If anyone has suggestions, or needs me to provide useful data in order to help, I’d be happy to provide any data I can. This just seems so odd because I’ve been using BoinxTV for years, and haven’t had any of these types of stability/framerate issues on other/older Macs. I haven’t really had to troubleshoot BoinxTV much over the years because it’s been so solid.
Blackmagic Desktop Video 10.5.4
MacOSX El Capitan