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Author Topic: AmigaKit Buffered Interface speed issues  (Read 1033 times)

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Offline AndyFC

Re: AmigaKit Buffered Interface speed issues
« on: November 11, 2022, 12:28:53 AM »
I'm surprised to see such a low speed. With a 3.5" HDD, CD Rom and SD card reader and no buffered interface I get about 3.2 Megabytes/sec from the HDD according to Sysinfo 4.4. My HDD is formatted with PFS. The SD reader gives me less than 1 MB/sec but there are so many different variables compared to my HDD - as well as cheap ebay hardware, I tend to use SD cards formatted with FAT as a way getting files to/from PCs.*

I used to run IDEFix but swapped to AtapiMagic when I upgrade to OS 3.2, but this made little difference to the speed measures.

* I now have a project for this weekend - use a decent SD card and test the speed with different file systems. I'll post the results here.
A1200 in DIY Tower. 3.2 ROMs (softkicking 3.2.2), OS 3.2.2 with ClassicWB, CF card, CD RW and IDE to SD adapter running off the internal IDE port (using the A4000 4-port IDE adapter from Amigakit), Pistorm 32 lite with Pi4/2GB/Emu68 or Blizzard 1230-IV, with 32MB 60ns RAM and 50MHz 68882 FPU. 3COM PCMCIA Network card running with Miami DX.
MorphOS on PowerMac G5 and ATI 9600 pro
 

Offline AndyFC

Re: AmigaKit Buffered Interface speed issues
« Reply #1 on: November 20, 2022, 02:44:17 PM »
It took me a bit longer than planned to do, but here are my measures, taken using the second speed reading in Sysinfo 4.4 (it goes up on second speed tests for each partition tested). All the SD Card partitions are on the same card and 60 Megabytes each. I also used Blizkick to enable SpeedyIDE but saw no improvements - maybe the patches are already included in the 3.2.1 ROM.

DeviceFile SystemSpeed (with Blizzard 1230 Mk IV)Speed (Blizzard disabled)
3.5 inch HDDPFS3,276,8001,638,400
SD CardPFS1,569,7241,106,092
SD CardOFS1,551,1471,071,433
SD CardOFS with Dir Cache1,563,4831,095,309
SD CardOFS International1,563,4831,096,836
SD CardFFS1,569,7241,109,212
SD CardFFS with Dir Cache1,563,4831,099,904
SD CardFFS International1,568,7241,102,990
« Last Edit: November 20, 2022, 02:49:55 PM by AndyFC »
A1200 in DIY Tower. 3.2 ROMs (softkicking 3.2.2), OS 3.2.2 with ClassicWB, CF card, CD RW and IDE to SD adapter running off the internal IDE port (using the A4000 4-port IDE adapter from Amigakit), Pistorm 32 lite with Pi4/2GB/Emu68 or Blizzard 1230-IV, with 32MB 60ns RAM and 50MHz 68882 FPU. 3COM PCMCIA Network card running with Miami DX.
MorphOS on PowerMac G5 and ATI 9600 pro