Overview Features Coding ApolloOS Performance Forum Downloads Products Order Contact

Welcome to the Apollo Forum

This forum is for people interested in the APOLLO CPU.
Please read the forum usage manual.
Please visit our Apollo-Discord Server for support.



All TopicsNewsPerformanceGamesDemosApolloVampireAROSWorkbenchATARIReleases
Performance and Benchmark Results!

CoffinOS R62

Geirmund Eidet

Posts 6
03 Apr 2023 21:45


What could be the reason for slight decrease in IDE speed after changing from R59 to R62 on the very same V2 500+ board, very same A500 MB, and the same CF SANDISK EXTREME UDMA 32GB ?

Yes, I tried fastest IDE speed setting, but still only 8.3 MB/sec when I experienced high 9 MB/ sec on R59.

What can I do to increase IDE speed to kick it above 10 MB/sec ? What are the gamechanging parameters ? Any specific CF card I should try ?
Or is it more the settings, formating and filesystem ?


Gunnar von Boehn
(Apollo Team Member)
Posts 6196
06 Apr 2023 07:39


Did you also update/flash the FPGA core?


Geirmund Eidet

Posts 6
10 Apr 2023 19:25


No I did not.
  I did not consider it realistic that IDE performance would become slower with a new CoffinOS release under the same core as used on previous CoffinOS releases.
 
  If I can expect an IDE performance increase then I will give it a shot with core update. Can you confirm that this is what I can expect ?

EDIT! OK i did flash to 2.16 now, but still no speedup. 8.3 MB/sec IDE speed.

Any suggestions for cranking it up a bit ?
 


Geirmund Eidet

Posts 6
12 Apr 2023 21:21


OK as said I now flashed to core 2.16. Speed was the same on this setup regardless of core.
The CF adapter and CF card I am using.
- CF-IDE44/2.0 ADAPTER V.B1 DMA/Panel LED/
- Sandisk EXTREME 32 GB 120 MB/sec UDMA7 (made in Thailand)
Result 8.3 MB/sec with CoffinOS R62

I then tested my alternative setup:
- The IDE to SD adapter I got with my Vampire
- Sandisk adapter with a Sandisk EXTREME 64GB Micro SDXC V30 I 3 A2
Result 8.9 MB/sec with CoffinOS R62

Link to SD card type:
EXTERNAL LINK  Link to CF card type:
EXTERNAL LINK 
It is not that I am outraged or deeply dissatisfied, its a good performance. But I see when running video demanding tasks CLEARLY the IDE is the bottleneck.

I would be greatful to recieve suggestions for how I can increase the speed to beyond 10 MB/sec.



posts 4