[Coco] HDB-DOS-Drivewire 3

[Bob Devries]

OK,

I've written/hacked megaread to take a command line argument.

The command line is now:

megaread #####

where the ##### is the number of 1K blocks of data to read from STDIN. If no 
number is supplied, 1024 is used, giving 1 megabyte. As before, the device 
to be read from must be redirected into megaread; viz:

megaread 256 </dd@

I've emailed my source code to Boisy, and if he approves, he'll likely store 
it in the appropriate place in the NitrOS9 repository on sourceforge.

--
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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