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- Xref: sparky comp.sys.ibm.pc.hardware:20399 comp.os.ms-windows.misc:1623
- Newsgroups: comp.sys.ibm.pc.hardware,comp.os.ms-windows.misc
- Path: sparky!uunet!cs.utexas.edu!tamsun.tamu.edu!eagle.tamu.edu!jlr1801
- From: jlr1801@eagle.tamu.edu (Jeff Rife)
- Subject: Re: Will a math chip help speed up Windows?
- Message-ID: <1992Jul27.183123.7030@tamsun.tamu.edu>
- Sender: news@tamsun.tamu.edu (Read News)
- Organization: Energy Systems Lab, Texas A&M University
- References: <1992Jul10.180052.24681@tcom.stc.co.uk>
- Date: Mon, 27 Jul 1992 18:31:23 GMT
- Lines: 75
-
- In article <9207101159.AA08271@alcatel.no> Malcom.Smith@alcatel.no (Malcom Smith) writes:
- >
- >1. Buy an accelaeraor card. There have been come articles/reviews
- > of such beasts in Byte and PC Magazine recently.
- >
- >2. Spend lots of money and buy a machine with the graphics card
- > on the local bus. (Option 1 is usually more acceptable!)
- >
-
- No question--video speed is absolutely the make or break. I've used
- 80486DX-50 machines with fast (Panacea, etc.) 256 color drivers. A
- 80386SX-16 with an accelerator card (TIGA, ATI Ultra, S3--fastest to
- slowest) will blow it away in apparent performance.
-
- If the SX has enough memory for a big disk cache, and TrueType (or ATM) font
- cache, then it is the preferred machine, IMHO.
-
- >However, for those users which use programs like Corel Draw! (which
- >uses tons of CPU power for the drawings) then a x87 would be perfect.
-
- No, it wouldn't. The Corel manual clearly states that it *does not* use a
- math coprocessor. However, since all of it's math is in 32-bit form
- (although it may be fixed point), a 80486 will help, as the increased
- integer speed over a 80386 will make a difference.
-
- >Lastly, don't bother putting the Video BIOS into Shadow RAM; there's
- >no appreciable difference in speed (i.e. the user can't tell, but I
- >suppose if you hooked up an alalyser you might find one) and for your
- >pains you'll lose some valuable upper memory.
-
- No, this is also (generally) wrong. Most BIOS's today will reserve either
- 256KB or 384KB if you shadow *any* ROM. Since shadowing the system ROM does
- help (especially on a 32-bit processor), then you won't waste anything by
- shadowing the video ROM. OTOH, Windows sometimes has problems when certain
- things are shadowed, depending on the system. If your machine is flaky,
- this is one thing to check.S
-
- >
- >Other ways to speed up Windows?
- >
- >1. Lotsa RAM. Certainly no less than 4MB, 8 is nice.
-
- Again, absolutely right. The more the better. And use it wisely.
-
- >2. Use a permenant swap file.
-
- As opposed to a temporary, yes, this is best, but, better still, get 16MB of
- real memory and turn off the swapping entirely. This results in an
- amazingly fast system. Also, make sure 32-bit disk access is on, even if
- you don't use any swapfile.
-
- >3. If you have oodles of RAM use 1MB for a RAM disk and in AUTOEXEC.BAT
- > have the line:
- > SET TEMP = D:\
- >
-
- If you have more than 4 MB of RAM, a good rule of thumb is to set up a
- RAM-disk that is 25% the size of your total memory. Then, make a
- subdirectory (like maybe D:\TEMP) and SET TEMP=D:\TEMP. *Never* use the
- root directory. What if a program creates 175 temporary files, all 512
- bytes long? It won't run, because the default number of directory entries
- for RAMDRIVE is less than that. But, there is no limit in the subdirectory,
- except the size of the disk.
-
- Some programs (notably Corel Draw!) will benefit most from a TEMP being set
- to a RAM-disk. Just make sure that it is big enough, and that it really is
- the cause for speed-up, and not some other twiddling.
-
- Also, if you are using network printers, turn Print Net Jobs Direct on in
- the Print Manager, and you won't need a large TEMP disk for printing. It
- will go directly to the server.
-
- --
- Jeff Rife P.O. Box 3836 | "Because he was human; because he had goodness; College Station, TX 77844 | because he was moral they called him insane.
- (409) 696-4252 or 847-8775 | Delusions of grandeur; visons of splendor; nabs@tamu.edu | A manic-depressive, he walks in the rain."
-