Monthly Archives: July 2011

Update: AmigaKit confirms FastATA 1200 MK-IV and Mediators NOW in Stock!

AmigaKit has confirmed in a post on Amiga.org that the new FastATA 1200 MK-IV and also Elbox Mediator 1200TX and 1200 LT4 PCI busboards, compatible with AmigaOS 4.1 Classic are IN STOCK.

Head on over to AmigaKit.com to check out the product pages!

Small Update to AmigaOS 4.1 Classic FAQ now available

 

I have made some small updates to the Classic FAQ – namely added question 4.6 and fixed some typos.  Head on over to the Hyperion Forums in Platform: Classic to download the updated FAQ.

 

SCSI and USB hard drive tests, AmigaOS 4.1 Classic

Here is a quick test of hard disk transfer rates using scsispeed 4.2 (AmigaOS 3.9) and 4.3 (AmigaOS 4.1 Classic).  All tests done on the same machine.

Under AmigaOS 3.9 TLSFMem was enabled along with the MAPROM feature of the Cyberstorm PPC and 60ns ram settings to ensure maximum speed.

AmigaOS 4.1 Classic retail version was used with out-of-the-box recommended settings as per the Install guide and FAQ.

The Deneb USB Controller was set to Zorro III mode with DMA enabled under AmigaOS 3.9 and PIO enabled under AmigaOS 4.1 Classic.

Here are the transfer rate results:

 

And here are the CPU measurements.  CPU percentages were obtained using scsispeed’s built in function under AmigaOS 3.9, and CPUInfo.docky was used with AmigaOS 4.1 Classic.

 

Ethernet Adapter Speeds, AmigaOS 3.9 and AmigaOS 4.1 Classic

I did some testing on the available Ethernet adapters for AmigaOS 4.1 and compared them against AmigaOS 3.9.  Read below for the test results!

Hardware Setup

Amiga Technologies A4000T
phase 5 Cyberstorm PPC with 233MHz 604e and 50MHz 68060
128MB RAM
Deneb Zorro III USB Controller – PIO mode in AmigaOS 4.1, DMA mode in AmigaOS 3.9
D-Link DUB-E100 100Mbit USB Ethernet Adapter
Elbox Mediator A3/4000T
Realtek 8029 based PCI network card 10Mbit
Realtek 8139 based PCI network card 100Mbit
Sapphire Radeon 9250 256MB PCI graphics card
ESS Solo-1 PCI sound card
Dual Boot AmigaOS 3.9 and AmigaOS 4.1 Classic Installed

Testing Methodology

For each test a large file was ftp’ed from a local ftp server into the Amiga 4000T’s RAM disk. Three different files were used – a 10MB file, a 40MB file, and a 102MB file.  The transfer rate at the end of the transfer was recorded for each test.  There was a normally a higher “peak” transfer rate, but since that was not sustained, I recorded the more realistic number at the end of the transfer.

FTP Client Used

I used the fastest client I could for each test.  Under AmigaOS 4.1 it was the included command line ftp program.  In AmigaOS 3.9 the AmiFTP client was fastest.  The included Genesis command line ftp client was very slow for some reason under AmigaOS 3.9.

TCP/IP Stack

AmigaOS 4.1 Classic is using RoadShow
AmigaOS 3.9 is using Genesis 68020 version

Operating System Notes

Stock AmigaOS 4.1 Classic install using DHCP.

AmigaOS 3.9 BB4 with MAPROM feature of Cyberstorm PPC enabled.  In addition, two tests were performed on each ethernet card with TLSFMem enabled.  TLSFMem is designed for AmigaOS 3.x only.   If you don’t know what TLSFMem is you can find information about it on Chris Hodges’ site here.

Results

OK, on to the results!  As you can see enabling TLSFMem under AmigaOS 3.9 makes a huge difference.
Not only does it lower by a little bit the CPU usage, it significantly increases the transfer rate and the overall system feels faster.  You can see the difference in speed between the RTL 8029 and RTL 8139 network cards on AmigaOS 3.9 in the chart below.

Under AmigaOS 4.1 Classic, the RTL8029 can reach 900 KB/sec and peak above that.  Using the USB adapter connected to the Deneb, you can get an even higher 1MB/sec.  There is very little difference in CPU usage in PIO or DMA mode on the Deneb – approximately 5% give or take.  Transfer rates are faster under AmigaOS 4.1, except when TLSFMem is enabled on AmigaOS 3.9.

All results measured in KB/sec (Kilo Bytes per second).

If you are interested in additional test results, you can check out the post by Olaf Barthel who published some results using Ariadne network cards.  The link is over on the English Amiga Board.

AmigaKit announces pending availability of the FastATA 1200 MK-IV!

 

AmigaKit has announced pending availablility of the FastATA 1200 MK-IV IDE adapter for Amiga 1200 users.

FastATA 1200 MK-IV

FastATA 1200 MK-IV

“FastATA 1200 is the most advanced IDE interface for the Amiga 1200
computer, providing up to PIO-5 performance and LBA 48-bit
compatibility.

Continuing AmigaKit’s commitment to sponsoring development of Classic
Amiga hardware, Elbox have manufactured a new production run of this
popular IDE interface.

FastATA MK-IV is natively supported in the new AmigaOS 4.1 Classic.
It is also compatible with the older AmigaOS 3.0, 3.1, 3.5 and 3.9.

Includes the latest AllegroCDFS v3.6 and ATA3 v10 driver software.”

Direct Product Links:

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=1052

The FastATA 1200 MK-IV is in final quality testing now and will be available in approximately 2 weeks.

PDF version of Poseidon article available

PDF graphic

 

Just a short note, a PDF version of the article “Optimizing Poseidon for AmigaOS 4.1 Classic” is now available.  Head on over to the article here, or download the PDF directly here: Optimizing Poseidon for AmigaOS 4.1 Classic in PDF format.