@sailor
A little bit higher results here on A1222. I am running a beta 1222 Tabor system from year 2016. I repeated test with emergency USB stick that is delivered with A1222+ but the results are the same. Maybe you have some stuff working in background.....
stream_spe:
Function Best Rate MB/s Avg time Min time Max time
Copy: 842.8 0.191521 0.189850 0.196177
Scale: 547.7 0.295012 0.292110 0.304204
Add: 627.5 0.385231 0.382451 0.388252
Triad: 595.9 0.404831 0.402750 0.410643
stream:
Function Best Rate MB/s Avg time Min time Max time
Copy: 840.9 0.192648 0.190283 0.196379
Scale: 154.2 1.038695 1.037723 1.040899
Add: 162.7 1.478401 1.475531 1.481802
Triad: 156.5 1.537082 1.533314 1.538960
Indeed LTE emulator is doing a great job. In applications with less FPU code user will not notice any speed slowdown. That is the main objective with LTE. But I guess these results are also high because of fast memory transfer on A1222.
About the 3D games - the problem is primary because of minigl library. Practically nothing will work (even included demos with minigl). At least in my testing.
Lot of system parts in AOS4 are optimized with SPE. Also Warp3DNova and other code done by Hans is optimized.
But there is a minigl version for both mixed FPU and SPE code and only SPE version. It can be downloaded from:
https://www.goldencode.de/?page=2Also other SPE optimized games from Daniel are on this page.
Also there is a Novabridge that will then make FPU/SPE minigl library operational on Radeon RX cards. Also then Rewarp will make possible to run software for WapUp. There is a great tutorial by kas1e here:
https://www.amigans.net/modules/newbb/viewtopic.php?topic_id=9032I tested all this in A1222 and results are great in some games, some not (too slow to play). I even amanged to get Quake Darkplaces working with more than 20 fps under LTE (Quake uses a lot FPU code). Quake darkplaces must be started with benchmark switch (otherwise it doesnt work, also game must be started from previous saved game position - if you have one from other Amiga system):
stack 9000000
darkplaces-sdl -benchmark -widht 640 -height 480
Lots of things to investigate and play around with A1222

Real SPE optimized games will work excellent because SPE FPU performance is fast. This is when FPU is used in games - then I guess the real thing is to transfer all the calculations on the graphic card...not using much of FPU.
Here I have A1222 with Radeon RX 580. It works great.
-dooz