More than 128 mB on a CSPPC?

[jack-3d]

Is there anything at OS3.9 that requires more then 128 MB RAM? I think more RAM is not needed even for WarpOS stuff.

Here is my recent testing of CSPPC 604e/200 060/50 (BLUE color) comparing to CSPPC 604e/366 060/66 (ORANGE color)


(transl: Maximální = Maximum)


(transl: Prumerne = Average)






=> almost double frequency = about 10-15% real speedup (most disapointing was the video encoding result)

[jack-3d]

I believe the biggest problem with more ram on a CSPPC or MKIII is the fast slot on A3000 and A4000 can only address 128mb of ram.  I don't think there are physically more address lines that can be used to allow the A3000/A4000 to access more than 128MB even with 060 on the CPU card.

I specifically asked about 128 MB limit for fast cpu on Apollo core forum and Biggun answered there is no such limit as they plan way more ram for big box Vampire. So I suppose the limit is made by phase5 on their cards.

[jack-3d]

@ jack-3d
Try to load 2 or 3 jpeg photos (each of a size of roughly 12 mB) into ArtEffect (enough virtual Ram enabled), while there are other programs (like Wildfire 7 PPC, SnapShoter and Fantastic Dreams) working in the background, and watch the available RAM disappear...
 :-(

Aside from the applications themselves, a lot of ram is consumed by the graphics you load.

As long as you use photos (each with a size of not larger than - lets say - 3 or 4 mB), all works well.
When I have just the OS and e.g. ArtEffect running and load a jpg-photo of just 4mB, ArtEffect 'unpacks' the jpg and makes roughly 70 mB of it in its working memory...

But we're living in a time where digital cameras are very high-res and one single hi-res photo can easily have a size of 12 mB...

Due to ArtEffect's internal structure already loading one single of such big hi-res photos can eat up all the FastRAM on a CSPPC...not to mention having two of them in memory for certain special effects...

Correct, the ArtEffect could be the one, that is able to eat all your ram within seconds. But doesnt this support swap file on your disk drive? CSPPC/MK3 has SCSI3 controller and my disk runs slightly over 30 MB/s. The 68k RAM read/write speed is about 40 MB/s so its not so big difference.

I would be happy to have 512 MB FAST RAM of course, but I dont consider ZORRAM as "fast" and works only as placebo. Lets wait for Vampire A3/4000, we should finally get more then 128 FAAAST RAM.