small@turing.seas.ucla.edu (James F. Small) (05/12/91)
Hyperdisk, where can I find this beast?
w8sdz@rigel.acs.oakland.edu (Keith Petersen) (05/12/91)
small@turing.seas.ucla.edu (James F. Small) writes: >Hyperdisk, where can I find this beast? WSMR-SIMTEL20.ARMY.MIL [192.88.110.20] Directory PD1:<MSDOS.DSKUTL> Filename Type Length Date Description ============================================== HYDK421.ZIP B 262319 910430 HyperDisk v4.21 disk cache system (shareware) This file was obtained directly from the author. If you do not have access to Internet FTP, the file is also available via modem from Detroit Download Central. Keith -- Keith Petersen Maintainer of SIMTEL20's MSDOS, MISC and CP/M archives - [192.88.110.20] Co-SysOp, Detroit Download Central 313-885-3956 (V22bis/HST/V32/V42bis/MNP) Internet: w8sdz@WSMR-SIMTEL20.Army.Mil or w8sdz@vela.acs.oakland.edu Uucp: uunet!umich!vela!w8sdz BITNET: w8sdz@OAKLAND
ralphs@seattleu.edu (Ralph Sims) (05/12/91)
small@turing.seas.ucla.edu (James F. Small) writes: > Hyperdisk, where can I find this beast? Simtel-20 as HYDK421.ZIP in the pd1:<msdos.dskutl> directory. Hey, this looks pretty good! It's supposed to release time slices and so far hasn't barfed. I loaded a 2-meg cache in high memory and get about a 90% read hit and 32% write hit. There's caveats about letting it do 'staged write' (delayed disk writes), and since I have umpty-dozen things happening simultaneously, decided not to press my luck. It also helped me fake a 4-meg data throughput on my hard drive. -- Happiness is a good alias file.
dhosek@euler.claremont.edu (Don Hosek) (05/12/91)
In article <9FDT21w164w@halcyon.uucp>, halcyon!ralphs@seattleu.edu (Ralph Sims) writes: > small@turing.seas.ucla.edu (James F. Small) writes: >> Hyperdisk, where can I find this beast? > Simtel-20 as HYDK421.ZIP in the pd1:<msdos.dskutl> directory. Hey, > this looks pretty good! It's supposed to release time slices and so > far hasn't barfed. I loaded a 2-meg cache in high memory and get about > a 90% read hit and 32% write hit. There's caveats about letting it > do 'staged write' (delayed disk writes), and since I have umpty-dozen > things happening simultaneously, decided not to press my luck. It > also helped me fake a 4-meg data throughput on my hard drive. I've been using staged-write on my hard disk since installing hyperdisk and the only problem I encountered was when I ran OPTIMIZE. The problem should be obvious (for those who are still in the dark, remember that OPTIMIZE reboots the PC). I've disabled staged write to the floppies as much as it helped my performance since my primary use of my floppy drives is for backups and it was too difficult to tell whether hyperdisk was done with the write or not for flipping disks. Maybe when I get around to writing my library backup program I'll include support for hyperdisk staged writes so I can go back to it (It's a pity that there seems to be no way of having different settings for different DV windows with Hyperdisk, but that, I suppose, would require a DV-specific cache. -dh --- Don Hosek dhosek@ymir.claremont.edu Quixote Digital Typography 714-625-0147
ted@dgbt.doc.ca (Ted Grusec) (05/13/91)
Hyperdisk can also be found somewhere in compuserve. Try your local board first. -- ========================================================================== Ted Grusec Communications Research Centre (Govt. of Canada, DOC) 3701 Carling Ave., Ottawa, Ont.K2H 8S2, CANADA Internet: ted@dgbt.doc.ca Compuserve: 73607,1576 (613) 998 2762 Fax (613) 993 8657