CompuServe Thread

#3DS & disk doublers

5 messages in this thread
#66234From: Tom AndersonNov 12, 1993 6:01 PM
I've been running Autocad release 12 with 3D studio for 4 months on my 486/50 clone with 8mb ram. I've had very few problems. Running out of disk space though, so I tried SuperStor PRO's latest version. It has worked flawlessly with Extended Foxpro and all Windows apps and works perfectly during a simple Autocad session. However, when I try to render a drawing using 3d Studio, the following error appears after a screen black out and a 30 second wait: Mfree error — validity check failure! ptr1=77b40c, ptr2=77b416, *ptr1=E, *ptr2=1 HEAPMGMT – heap error #: 1a Cheap stack dump linked in => no dump Aborting….. I then must re-boot. It does the same thing whether I load the superstor driver in conventional, extended, or extended without using UMB's. Has anyone else had this problem. Thanks in advance for any help…….Tom
#66238From: CSA/CANov 12, 1993 7:22 PM
Tom, Well, I use STACKER. But you might be sure that you are directing the swap file for the PharLap DOS Extender used by 3DS over to an uncompressed partition. Kevin Krell – Computer Support Associates
#66613From: Brian Rudolph [Adesk]Nov 15, 1993 6:19 PM
Tom, 3DS, more than any other application, relies on the VMM swap drive that Phar Lap creates for memory intensive tasks such as rendering. This swap drive should be placed on an UNCOMPRESSED drive. What many people do to gain some benifit from Disk compression is to compress a portion of their drive, and leave another prtion uncompressed. Then direct the Phar Lap swap files to the uncompressed section of the hard drive. -Brian P.S. You can direct the swap file to a certain drive with the CFIG386 3DS -SWAPDIR command. Refer to your reference manual for details.
#66762From: Tom AndersonNov 16, 1993 11:13 AM
BRIAN, thanks for help with 3ds and disk doublers. Seems a shame not to be able to use doublers when they do such good compression on dwg's. Glad to hear I still might be able to make it happen. ….tom
#66876From: John SchmidtNov 16, 1993 8:49 PM
Tom, >> Seems a shame not to be able to use doublers when they do such good compression on dwg's. Wellll…I've been using AddStor's SuperStor on one machine to compress _everything_ except a Windows permanent swap file and have had no problems, even with 90 meg 3DS swap files on the compressed drive. So compression is not totally out of the question. My average compression works out at 1.9 to 1. It might slow the system a little, but nothing I've been able to perceive compared to uncompressed drives. John