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- Document 1206
- SUPER PC-KWIK
-
- INITIALS:
- 12/11/91
- DR DOS 6
-
- KEYWORDS:
- PCK
- SUPERPCK
- SUPER PC-KWIK
- CACHE
- HARD DISK
- FLOPPY DISK
- WINDOWS
-
- DESCRIPTION:
-
- Using Super PC-Kwik and Windows 3.0
-
- Disk caching with Super PC-Kwik is recommended for improved performance
- with Windows. Important notes on using PC-Kwik with Windows are in
- Chapter 13 of the DR DOS 6.0 User Guide.
-
- Although PC-Kwik attempts by default to use all available extended
- memory, it lends back up to half of that to applications as
- requested.
-
- Windows is unique in that it allocates all extended memory
- as it is loaded. Other applications use varying amounts of extended
- memory as they need it.
-
- Because Windows needs 2 Mbytes or more of extended memory to run efficiently
- in enhanced mode, you must force PC-Kwik to lend at least 2 Mbytes
- of extended memory back to Windows on systems with insufficient extended
- memory for both the cache and Windows (i.e., those with less than
- 4 Mbytes of extended memory).
-
- For example, on a system with a total of 4 Mbytes of memory
- (3 Mbytes extended), Super PC-Kwik would lend only 1536 Kbytes by
- default (3072 / 2 = 1536). Because Windows prefers 2048 Kbytes or
- more, increase the default by using the following command:
-
- SUPERPCK /L:2048
-
- If total system memory is 5 Mbytes, or more, the Super PC-Kwik default
- lending of one-half of extended memory is sufficient to have an effective
- cache and run Windows in enhanced mode. If you run several applications
- through Windows and run out of memory, you can increase the lending
- amount with the PC-Kwik /L:xxxx switch.
-
- If total system memory is large, for example 8 Mbytes or more, and
- you use Windows extensively, turn off lending completely and set the
- allocated amount for the cache buffer. For example, on a system with
- a 10 Mbyte total (9 Mbyte extended) use the following PC-Kwik switch:
- SUPERPCK /L- /S:3072. This keeps the cache buffer high, while giving
- Windows 6,144 Kbytes of extended memory for its own use. Once again,
- enable lending if Windows is running out of memory.
-
-
- Using Super PC-Kwik
-
- Size of Cache
-
- Super PC-Kwik moves as much of its code into upper memory as possible;
- you do not need to use HILOAD or HIINSTALL on Super PC-Kwik. Super
- PC-Kwik will use the least amount of memory for its executable code
- if it is configured to cache in expanded (EMS) memory. The Super PC-Kwik
- code "footprint" is typically about 17 Kbytes in upper memory.
-
- When Super PC-Kwik is configured to cache extended memory, the code
- footprint in the first 1 Mbyte of memory varies in size according
- to the amount of extended memory that is cached.
-
- The Super PC-Kwik footprint in upper memory can be controlled by limiting
- the amount of extended memory allocated to the cache. If your system
- has more than 8 Mbytes of RAM, you might want to use the Super PC-
- Kwik /S:xxxx switch to limit the cache buffer size.
-
- The Super PC-Kwik maximum cache buffer size is 16 Mbytes.
-
- For information about running Super PC-Kwik with Windows, see "Running
- EMM386.SYS with Windows" on page 22 and Chapter 13 of the DR DOS 6.0 User
- Guide.
-
- Using Super PC-Kwik with Networks
-
- You can load Super PC-Kwik on a DOS-based network server (e.g., Lantastic
- 4.0). However, advanced cache reads and writes should be disabled
- (use the Super PC-Kwik /H- and /D- switches.)
-
- If you are using Novell NetWare, load Novell drivers before loading Super
- PC-Kwik to permit unloading the cache. You can load the Novell drivers after,
- but you must then leave Super PC-Kwik in memory.
-
- Super PC-Kwik will not cache remote network drives (i.e, across the
- network). However, local drives can be cached.
-
- When used on a network, the DR DOS 6.0 operating system must reload
- COMMAND.COM after Super PC-Kwik loads. You must use the DR DOS SHELL
- and SET COMSPEC commands to point to the location of COMMAND.COM. See
- Chapter 11 of the DR DOS 6.0 User Guide for a discussion of
- how to use the SHELL command, and Chapter 10 on how to use the SET
- command.
-
- Do not use the DR DOS VERIFY=ON command when using a network as it
- will negate any gain from caching.
-
- Also, when using Super PC-Kwik, the BUFFERS=4 command in the config.sys
- file is adequate, and the FASTOPEN command is generally not needed.
-
- Generally, Super PC-Kwik should be loaded early in autoexec.bat. TSRs
- loaded after Super PC-Kwik must be unloaded from memory before Super
- PC-Kwik can be unloaded with the /U parameter.
-
- If you use Lotus 1-2-3 v3.1, note that it uses the Rational Systems
- DOS Extender. Use the DR DOS SET DOS16M=:384 command in the autoexec.bat
- file and use the Super PC-Kwik /R:400 switch.
-
- Troubleshooting Super PC-Kwik
-
- If, after eliminating the factors listed above, Super PC-Kwik still
- malfunctions, check the parameters used when loading Super PC-Kwik.
- Begin with the simplest settings, such as /H-, /T-, and /D-.
-
- If you suspect an upper memory conflict, use the Super PC-Kwik /&U-
- switch to prevent parts of Super PC-Kwik from moving into upper memory.
-
- If you are having problems reading a drive, try the Super PC-Kwik
- /I+, /X /I+, or /T- switches. Also, see "Upper Memory Conflicts"
- on page 17.
-
- Floppy Drive Does Not Work
-
- If you have installed Super PC-Kwik and have enabled the /D+
- switch, your disk controller must be 100% IBM compatible. Reset
- the /D+ switch to /D- (the /D# switch works on some controllers) to
- turn off PC-Kwik's advanced caching for the floppy drives (advanced
- caching for your hard drive remains in effect).
-