prl3546@tahoma.UUCP (Philip R. Lindberg) (02/23/89)
I own an Apple //gs. I have an Applied Engineering GSRAM card which came with a Classic Disk Accessory(CDA) 3.5" Disk Cache. My recently purchased GSOS operating system disk came with a New Disk Accessory(NDA) 3.5" Disk Cache. Can anyone tell me which is better to use, (and why)? Is it okay/better to use both?(ie. have both enabled at the same time) And since I've got lots of memory(2.5 meg), how much is an "optimum" amount to assign to this? Is one of the two designed better than the other? Are there inherent advantages to using a CDA over a NDA? (or visa-versa?) I'm sure there are other people who would be interested in hearing this discussed. Thanks in advance,
shankar@bedrock.SRC.Honeywell.COM (Son of Knuth) (02/26/89)
In article <296@tahoma.UUCP> prl3546@tahoma.UUCP (Philip R. Lindberg) writes: >I own an Apple //gs. I have an Applied Engineering GSRAM card which came >with a Classic Disk Accessory(CDA) 3.5" Disk Cache. My recently purchased GSOS >operating system disk came with a New Disk Accessory(NDA) 3.5" Disk Cache. > >Can anyone tell me which is better to use, (and why)? I would not use the AE cache at all with GS/OS unless they have a new version for GS/OS. I originally tried to use both caches, and then just the AE cache - in both cases, the system tended to crash a lot, and the crashes were solved by not using the AE cache. --- Subash Shankar Honeywell Systems & Research Center voice: (612) 782 7558 US Snail: 3660 Technology Dr., Minneapolis, MN 55418 shankar@src.honeywell.com srcsip!shankar
dseah@wpi.wpi.edu (David I Seah) (02/27/89)
I haven't used the AECache program in a long time (because DiversiCache was better). I would expect that it would be redundant to have on a GSOS system disk. I used to have the version of AECache that you had to run before booting a disk, then I got the version that was loaded along with the tools. Since the NDA Cache program gets loaded too, AECache is just so much extra baggage. If you run DiversiCache and the GSOS cache at the same time, you may get added performance. It usually shaves from 5-10 seconds off the boot time of my GSOS system disk. I think the reason this is so is because DiveriCache is a track oriented cache, while the GSOS one is a last-block-read oriented cache. I usually set DiversiCache to a 0K buffer, but this still lets it read an ENTIRE track into its cache. GSOS caches the directory, thus eliminating those annoying journeys from directory to file to directory to file...Another bonus is that DiveriCache can be tacked onto the end of the ProDOS file (the little 4 block one). DiversiCache also stays in memory when you do a ctrl-OA-reset, while AECache goes away. Does the GSOS Set Cache NDA actually contain the cache, or does it just provide an interface to some internal cache that GSOS has inside it? | <<<<<(((((( DAVE SEAH ))))))>>>>> | Internet: dseah@wpi.wpi.edu | Worcester Polytechnic Institute | Bitnet: dseah@wpi.bitnet | Computer Engineering Class of '90 | ALink PE: Omnitreant
scott@claris.com (Scott Lindsey) (02/27/89)
From article <1032@wpi.wpi.edu>, by dseah@wpi.wpi.edu (David I Seah): > Does the GSOS Set Cache NDA actually contain the cache, or does it just > provide an interface to some internal cache that GSOS has inside it? It just sets a Battery RAM parameter which GS/OS uses to determine the size of its cache. -- Scott Lindsey, wombat | UUCP: {ames,apple,portal,sun,voder}!claris!scott Product Development | Internet: scott@claris.com | AppleLink: LINDSEY1 Claris Corp. | These are not the opinions of Claris, Apple, (415) 960-4070 | StyleWare, the author, or anyone else living or dead.