3 more products added Catweasel etc

[adolescent]

redrumloa wrote:

100% CPU load, get a cpu monitoring utility and be amazed:-)

The Buddha will take a huge CPU hit in faster modes just like the FastATA.  This is due to the lack of DMA.  The Buddha doesn' t have any magic fix for this problem.  It might be less noticable because the Buddha is limited to ~2.8M/sec being a Zorro 2 only.  The FastATA can go much faster, and thus uses more CPU.  

I would recommend just getting a SCSIDE adapter and using the internal SCSI.  Jeff- I have one that you can borrow to test if needed.  That way you maintain just about the same speed, but you save a lot of CPU.

[adolescent]

Acill wrote:
Thats a load of crap! I used one in my A3000 for a few years in the form of a catweasel s class card. They are built together on that one. It got software that lets you select your PIO mode. I had it at 4 with no problems. It was MUCH faster then my internal SCSI but not near the speeds of the SCSI on my CSPPC card.

I'm going to have to agree with tjoaz here.  The theoretical transfer rate of PIO-0 is 3.2MB/s.  I don't think I've seen anything over 3MB/s on the Z2 bus (Buhdda bencharks show a max of around 2.8MB/s on Z3).

Although the Buddha might support switching modes, it can not out run them.  

[adolescent]

I don't think it supports Zorro 3 mode.  The benchmark I saw was a Buddha on an A4000/040.  I'd expect an A3000/060 to move more data than that.  But, at 2.8MB/s it's not much faster than the internal SCSI and has much more CPU load.

[adolescent]

@Orjan

Your math is a little off, but I think you have the right idea.  If speed matters, get the FastATA as it is 4-5x faster (dependent on CPU).  If you want the equivelent speed of the A4000 onboard IDE plus a clockport, then get the Buddha.  Both take a significant CPU hit during transfers.  I'd like to see a DMA IDE controller, but I don't think it's ever going to happen.  For now the alternative is to use a SCSIDE adapter to take advantage of both DMA and cheap IDE devices.