mg@cs.Princeton.EDU (Michael Golan) (08/21/90)
I am running Desqview 2.26 / QEMM 5.0 on a 386 system. I have found that when I run CORETEST (The disk performance program), after QEMM is loaded, transfer performance are much higher (4-5 times) than when I run it from inside DV. This is also reflected in the timing of a COPY command. I have tried to run DV w/o QEMM, and in that case the disk performance is fine. I have also tried DV+QEMM with various parameters: no RAM, DMA=, etc., but it always gives bad performance. I also changed to run only a single dos program, using the cpu alone, etc. - nothing seems to help. I am using a PERSTOR disk controller, but I dont see why it should make any difference. I even tried to move the interleave factor from 3 to 4, but this only hurt performance slightly everywhere. I would appreciate any suggestions! Thanks Michael Golan mg@princeton.edu
boba@netcom.UUCP (Bob Amstadt) (08/21/90)
My suggestion is call Quarterdeck. I called them with a problem that I was having with my SCSI controller, and they were quite good about providing me with help. One word of warning: have your serial numbers handy when calling. They will not provide service unless you can give them your serial numbers.
jsilva@cogsci.berkeley.edu (John Silva) (08/23/90)
In article <2026@rossignol.Princeton.EDU> mg@cs.Princeton.EDU writes: >I am running Desqview 2.26 / QEMM 5.0 on a 386 system. I have found that >when I run CORETEST (The disk performance program), after QEMM is loaded, >transfer performance are much higher (4-5 times) than when I run it from >inside DV. This is also reflected in the timing of a COPY command. > [...] > > Michael Golan > mg@princeton.edu > Quarterdeck recommends that when running DesqView under QEMM the 'DOS buffers for EMS' option under the Advanced Setup: Performance menu should be set to 0. This should dramatically increase performance inside DesqView. -J. John P. Silva "I drank WHAT?!" Inova Products, Inc. Internet: jsilva@cogsci.berkeley.edu (415)222-9255 Usenet: ucbvax!cogsci!jsilva