[Coco] HDB-DOS-Drivewire 3

Bob Devries devries.bob at gmail.com
Fri Mar 13 18:44:53 EDT 2009


Boisy, I'll look into adding that function to megaread.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Boisy Pitre" <boisy at tee-boy.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, March 14, 2009 7:25 AM
Subject: Re: [Coco] HDB-DOS-Drivewire 3


> Bob,
> 
> That sounds like the functionality we need.
> 
> You took a stab at adding some functionality to some utilities in the  
> NitrOS-9 project some time back. Do you think you could add this to  
> our current megaread?  I would envision a syntax like this:
> 
> megaread ###  (where ### is a decimal number of 1K blocks to read)  If  
> no option is given, then the default would be 1024 blocks.
> 
> Regards,
> Boisy G. Pitre
> --
> Tee-Boy
> Mobile: 337.781.3570
> Email: boisy at tee-boy.com
> Web: http://www.tee-boy.com
> 
> On Mar 13, 2009, at 4:06 PM, Bob Devries wrote:
> 
>> Boisy,
>>
>> IIRC, there's an OS9 programme called QMEGREAD which is similar to  
>> megaread, but reads just a quarter megabyte of data.
>> It should be on RTSI.
>>
>> --
>> Regards, Bob Devries, Dalby, Queensland, Australia
>>
>> Isaiah 50:4 The sovereign Lord has given me
>> the capacity to be his spokesman,
>> so that I know how to help the weary.
>>
>> website: http://www.home.gil.com.au/~bdevasl
>> my blog: http://bdevries.invigorated.org/
>>
>> ----- Original Message ----- From: "Boisy Pitre" <boisy at tee-boy.com>
>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>> Sent: Friday, March 13, 2009 10:46 PM
>> Subject: Re: [Coco] HDB-DOS-Drivewire 3
>>
>>
>>> I just ran a megaread on under NitrOS-9/6309 Level 2 running  
>>> DriveWire  3 to an eMac G4 1.42GHz server, and here's what I got:
>>>
>>> 228 seconds
>>>
>>> A more recent system could probably do better, but not by a large   
>>> margin. Even if you were to cut this in half (114 seconds, which is  
>>> a  stretch to think that it could be cut in half) it is still an  
>>> order of  magnitude slower than SCSI and way slower than IDE.  A  
>>> more comparable  test would be against a floppy system, though  
>>> current floppies don't  hold a megabyte.
>>>
>>> I'm not sure how much slower or faster DriveWire 3 is than a floppy  
>>> at raw reads/writes but there is something to be said for NitrOS-9   
>>> booting faster from DriveWire 3 than from a floppy disk, and this  
>>> has  a lot to do fact that DriveWire 3 is not encumbered by the  
>>> time  consuming head movement and track seeks of a floppy disk drive.
>>>
>>> If someone has the time (hint hint!), they could modify  
>>> megaread.asm  in the NitrOS-9 Project to take an optional  
>>> parameter: the number of  1K blocks to read (currently 1,024).   
>>> This would allow megaread to  work with smaller sized devices and  
>>> results could be extrapolated from  that.
>>>
>>> Regards,
>>> Boisy G. Pitre
>>> --
>>> Tee-Boy
>>> Mobile: 337.781.3570
>>> Email: boisy at tee-boy.com
>>> Web: http://www.tee-boy.com
>>>
>>> On Mar 13, 2009, at 6:43 AM, Mark Marlette wrote:
>>>
>>>>
>>>> I currently do not have a DW3 setup in place as I am working on   
>>>> other Cloud-9 projects.
>>>>
>>>> Boisy and or, all it takes is megaread and NitrOS-9.
>>>>
>>>> Regards,
>>>>
>>>> Mark
>>>> Cloud-9
>>>>
>>>>
>>>> At 3/12/2009 07:27 PM, you wrote:
>>>>> On Thu, 12 Mar 2009, Mark Marlette wrote:
>>>>>
>>>>>>
>>>>>> Testing I did using MegaRead under NitrOS-9 and SuperDriver......
>>>>>>
>>>>>> SCSI, ~11 seconds
>>>>>> SuperIDE/CF, ~19 seconds.
>>>>>>
>>>>>> We only know one speed, to the floorboard!
>>>>>
>>>>> What did the Drivewire drive benchmark as?
>>>>>
>>>>> --
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