Menno wrote: ↑
Wed Aug 05, 2020 12:52
@mwebb9413 I did not call you unfair. What i ment was that it's not the right direction to say you need more pci-e lanes or a different cpu. Actually i think your test is very good!
You have made pretty similar setups in Resolume and Millumin, and shown that resolume drops below 30 fps while Millumin stays above 60. So imo this is something we need to figure out what is happening in resolume.
If i look at your latest results it looks like the problem lies in having more than one decklink output.
1 2160p is the same amout of data as 4 1080p's and yet the 4 outputs run at 30fps while 1 output is capped at 60. When i am back at the office i'll see if i can figure out what's going on here, but there wont be an overnight fix for this from us unfortunately.
Maybe in the meantime you could try 1 capture + 1 ndi or just output 1 big spout/syphon image and output it using a different program?
Yes and no on PCI E issue.
Original post is about an under powered custom (?) PC, then somehow we switched to testing on a different spec iMac with software that you can’t install on PC. Also not including Artnet universes in the iMac test.
The 5700 XT has 8 channels of memory with and effective speed per channel of 14Gbps.
The composition for the original question is about 18.5Gbps, plus 4 1080i outputs adds another 6Gbps. This doesn’t include the calculation for 20 artnet universe.
If the machine has something like an M2 card running on PCIE instead of SATA then you get less processing power because some of the 16 lanes allocated by CPU are now used for storage