Some access times...

[phandel@sempco.uucp (Peter Handel)]

Here are some access times of various common storage devices
tested on a ROM 01 GS @ 8Mhz/16k ZipGSX.  The SyQuest drive is a
44MB Removable hooked up to an Apple High Speed DMA SCSI card.
 
 
Time in milliseconds!  Measured with ProSEL 16 v8.84
 
 
Device         Linear Read    Random Read    OS Overhead
 
Apple 5.25"          33.64         366.02          1.07
UniDisk 3.5"        165.96         208.94         41.57
Apple 3.5"           16.75         150.03          4.67
HS DMA SCSI SyQuest   1.40          28.67         12.75
Vulcan 40Meg          4.85          15.57           .42
RAM5 w/o Sys6 Driver  4.56       *7.16-9.57        4.25
RAM5 w/Sys6 Driver     .82        1.57-1.63         .39
 
 
*: When the RAMDisk was at 32k, the Random Read rate was 9.57ms.
   At 128k, it was 7.49ms; at 256k, 7.20ms; and at 512k, the
   rate was 7.16ms.
 
 Does anyone have any times for the RamFAST SCSI card?  I've heard that it's
supposed to be faster than RAM...

BTW- That System 6.0.1 /RAM5 driver sure makes a big difference...

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