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- Released August 20th, 1993
-
- ╒════╡ 4_Speed v1.0 │ Dos Data Transfer Rate Test
- │ and Graph Utility
- │ Dustbowl Designs, Inc. ┌────────────────┐
- │ "Dedicated to enhancing the │ 150 MB │
- │ world's personal computers." │ ≡■≡≡≡≡≡≡≡≡≡≡≡≡ │
- │ (405) 741-4705 Voice └────────────────┘
- │ (405) 741-2721 BBS Drive C:
- ├────────────────────────────────────────────────────────────────────────┐
- │ Copyright 1993 by Dustbowl Designs, Inc. All rights reserved. │
- │ 12600 S.E. 38th Street, Choctaw, Oklahoma USA 73020-6107 │
- └────────────────────────────────────────────────────────────────────────┘
- Go! Drive Passes Comment Scatter Log Analyze View Help Quit
-
- You are free to copy this software and distribute it to other users as
- long as the archive file is distributed in its entirety with this text
- file included in the archive.
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Introduction ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
-
- We've decided to release to the public a handy in-house Data Transfer
- Rate Test utility as freeware. In order to test our own development
- changes we found that the selection of benchmarking software available
- for hard disk drives to be rich in variety.... almost too rich.
- According to most of the magazine comparison benchmarking tests,
- sophisticated models are developed that take a long time to run and
- are almost to complex for most of us to understand when they are even
- explained. What we wanted was a test that was quick, accurate, read
- only, graphic based with print and screen save capability and - most
- important - gave us a SINGLE number result. This is what 4_Speed does.
- We hope you like it.
-
- What's particularly useful about this Data Transfer Rate Test is that
- you may talk to drives that are attached to either the Primary or
- Secondary Port Addresses. This ability dovetails nicely with our
- 3_Drives, 4_Drives and DiskQwik shareware utilities.
-
- Plans for 4_Speed include: a full path option when saving PCX files
- and Logs; a mode change option between the current Int25 to Int13 and
- direct Port Address; a "multiple sector block transfer mode"
- evaluation for IDE drives to determine optimum sector per interrupt
- (see our DiskQwik utility if this sounds interesting); and a little
- utility to change the PCX file background to white to make printing
- files easier..
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Menu Options ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
- Go! Drive Passes Comment Scatter Log Analyze View Help Quit
-
- Go! - Starts the test. Default is C: unless it is changed.
-
- Drive - This will display a selection of the available drive
- letters in your system. Select as many as you like.
- Watch out testing the transfer rate of the floppies
- since it can take several minutes time.
-
- Passes - The number of times (from 1 to 9) to test each block
- size. This value remains in effect until it is changed
- again. The default start up value is 5 passes.
-
- Comment - This selection allows the placement of a 50 character
- comment to be associated with the drive being tested. Be
- sure to use this because after a while its hard to tell
- between tests.
-
- Scatter - You have to look closely at the screen to see the Scatter
- usually. A single pixel is lit up that shows the
- results from each of the passes.
-
- Log - This is optional and will ask for the name of the file
- you want and saves the test data in simple ASCII text
- to that file.
-
- Analyze - Using data you might have saved to one of the log files,
- you can graph the results of tests together. This is
- very useful when you need to reboot the computer between
- tests.
-
- View - One of the options at the end of a test run is to save
- the graphics screen to a PCX file. This View selection
- allows you to look at them. Lots of programs have the
- ability to display and print PCX files (Windows
- Paintbrush for example).
-
- Help - Not a lot of info here, mainly the Command line options
- are described. Also, the formula for calculating the
- Average transfer rate on the test is shown.
-
- Quit - Exit to DOS. Pressing the Escape key does the same thing.
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Command Line Switches ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
-
- (... no command line = Manual interactive mode)
-
- 4_Speed /[drive letter][Passes]:[Comment (NO spaces!)]
-
- example: 4_Speed /c9:MD-123_with_cache /e3:no_cache
-
- = C: drive to test, with 9 calibration passes, and the
- comment "MD-123_with_cache" AND E: drive, with 3
- calibration passes and the comment "no_cache"
-
- other:
- + a plus sign on the command line separated by spaces will
- cause 4_Speed to run in a non-stop mode and exit to DOS
- after running which is handy for batch file exercisers.
-
- Y a Y letter on the command line separated by spaces will
- automatically save the test results to a default ASCII log
- named 4_speed.log.
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Outline ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
-
- The method that 4_Speed uses is very simple and straight forward.
- Using Interrupt 25 (absolute logical sector read within DOS prepared
- volumes), we read in a block of sectors which increases in size, until
- it reaches DOS's block request limit of 127 sectors (1 segment). Every
- start of the block read begins at logical sector 0 (which is the
- location of that volume's DOS Volume Boot Record). Each increment is
- tested as many times as set in the Passes variable.
-
- The test looks like this:
- 1 -
- 2 --
- 3 ---
- 4 ----
- 5 ----- and so on to 127.
-
- Since we are reading the same data over again, you will need to remove
- any drive caching software from memory, or else you end up really
- testing the speed of the system RAM, unless you want to make test
- comparisons between various caching programs.
-
- Today's newer drives use very sophisticated RAM buffers of their own.
- Some are simple Read Look Ahead, while others are Read/Write
- multi-Segmented Adaptive. Some are small and others nearly a megabyte
- in size on the drive! The graph will often reflect the kind of
- caching algorithms used by the drive or controller manufacturer.
-
- 4_Speed does a pretty good job of testing RAM speeds if you set up a
- virtual drive with RAMDISK.SYS. Keeping a log of test results on the
- Ram Drive and experimenting with various system setup options can
- yield some interesting results to analyze.
-
- A word about our "Average"...
-
- At the conclusion of a test, you will see a single number which is
- placed in front of the comment. This value is an Average Data
- Transfer Rate. Although there are several methods available to
- calculate an average Data Transfer Rate, each with its own valid
- arguments, we chose a Linear Regression method and use its "line of
- best fit" to calculate a midway point. This assumes that any point on
- the resulting line has equal weight. Clearly, there must be a
- distribution of use that can be measured that would show a system's
- actual pattern of use.
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Legal Disclaimer ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
- LICENSE AGREEMENT
-
- 3_Drives, 4_Drives, DiskQwik, 4_Drive Utilities, 4_Speed All versions.
-
- Dustbowl Designs, Inc. provides the accompanying object code software
- ("Software") and nonexclusively licenses its use on the following
- terms and conditions. The Software is copyrighted by Dustbowl Designs,
- Inc. with all rights reserved. YOU ASSUME FULL RESPONSIBILITY FOR THE
- SELECTION OF THE SOFTWARE TO ACHIEVE YOUR INTENDED PURPOSES, FOR THE
- PROPER INSTALLATION AND USE. Dustbowl Designs, Inc. DOES NOT WARRANT
- THAT THE SOFTWARE WILL MEET YOUR REQUIREMENTS, THAT THE SOFTWARE IS
- FIT FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL BE
- ERROR FREE. Dustbowl Designs, Inc. EXPRESSLY DISCLAIMS ALL WARRANTIES,
- WHETHER ORAL OR WRITTEN, EXPRESSED OR IMPLIED, INCLUDING WITHOUT
- LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
- PURPOSE. IN NO EVENT WILL Dustbowl Designs, Inc. BE LIABLE TO YOU,
- YOUR CUSTOMERS OR OTHER USERS FOR ANY INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, SPECIAL OR EXEMPLARY DAMAGES ARISING OUT OF OR IN
- CONNECTION WITH THE USE OR INABILITY TO USE THE SOFTWARE.
-
- DiskQwik is a trademark of Dustbowl Designs, Inc. The DiskQwik
- software and documentation are Copyright 1993 by Dustbowl Designs with
- all rights reserved. The Registered of 3_Drives, 4_Drives, and
- DiskQwik software programs ARE NOT shareware or freeware and
- unauthorized redistribution is STRICTLY PROHIBITED.
-
- End of License agreement.
- *****************************************************************
-
- ┌────────────────────────────────────────────────────────────────────┐
- │▒▒▒ Revision History ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒│
- └────────────────────────────────────────────────────────────────────┘
-
- v1.0 08/93 - public release of Shareware 4_Speed v1.0.
-
- Contents of the 4_Speed Distribution Set. 4SPD100.ZIP
- (4SPD.ZIP on CompuServe (tm) go IBMHW forum Lib 1)
-
- 4_SPEED.EXE A VGA graphics based Data Transfer Rate Test utility.
- (Compiled 8-20-93 1:00 am). Freeware.
- 4_SPEED.DOC Auxiliary documentation.
- DBOWLDEM.EXE Simple demo that gives a look at registered
- 4_Drives v3.0 and 4_Park v1.1, and our new DiskQwik
- programs.
- VENDOR4.DOC Shareware vendor distribution policy
-
- ========================
-
- ┌─────────────────────────────────────────────────┐
- │ 4_Drives and 3_Drives │
- From the │ The Universal device driver that lets you add │
- makers of: │ an additional 16-bit interface to your system. │
- │ Add up to two more MFM, RLL, ESDI, or AT/IDE │
- │ Hard Disk Drives to a Secondary Port Address! │
- │ Fast Disk I/O options registered versions. │
- │ │
- │ DiskQwik │
- │ A utility that maximizes the speed potential │
- │ of AT/IDE hard disk drives. Many newer IDE │
- │ drives often have an untapped feature called │
- │ "Multiple Sectors per Interrupt". By activating │
- │ this, you can increase the data transfer rate │
- │ of your hard drive by up to 50% .... │
- │ State of the Art! │
- └─────────────────────────────────────────────────┘
-
- Shareware versions of these programs are available at all better
- BBS's! If you can't find a copy locally, feel free to call our BBS.
-
- Dustbowl Designs, Inc. |
- 12600 S.E. 38th Street |
- Choctaw, Oklahoma 73020-6107 |
- U.S.A. | CIS: 71062,2542
-
- phone:
- (405) 741-4705 ordering, tech support, general information
- (405) 741-2721 BBS (9600 HST/v.everything) Tech Support, Hard disk
- drive shareware, drive specs, Online Shareware
- Registration/Download for VISA or MasterCard orders!
-
- -= EOF 4_SPEED.DOC =-