kpmiller@uokmax.ecn.uoknor.edu (Kent P Miller) (10/17/90)
What's the scoop on disk cache sizes? Does anyone have a suggestion of the optimum size cache for a machine with 3Mb? 5Mb? 2Mb? I read in a magazine to use 256K-512K for 1Meg, but I have no earthly idea what to use for 2,3, and 5Mb. Thanks Kent
e4666881@rick.cs.ubc.ca (richard louie) (10/18/90)
The question about the best size for a disk cache has
been asked by many people throughout the PC world.
I would suggest that you read PC Magazine's article on
hardware disk caches afew months back. They have a wonder side
article on software caches and the advantages of having a good
caching program rather than a larger cache.
In the case that you can't get a hold of the article, I'll
just summarize some of it for you. The best software cache is
PC-Cache or similar. The best size of a cache is the just a
little larger than your largest application. Any smaller and
you'll see some downgrading of your hard drive performance.
Richard
e4666881@rick.cs.ubc.capalm@admin.kth.se (Christer Palm) (10/18/90)
In article <1990Oct17.001613.17999@uokmax.ecn.uoknor.edu> kpmiller@uokmax.ecn.uoknor.edu (Kent P Miller) writes: >What's the scoop on disk cache sizes? Does anyone have a suggestion of >the optimum size cache for a machine with 3Mb? 5Mb? 2Mb? > Windows manual Chapter 13 Setting the cache size to less than 256K is not effective. Setting the cache size larger than 1024K might not be the best use of your system's memory. Ex: increasing a 256K cache to 512K might improve your system speed by 20 % increasing a 1024K cache to 1280 might improve your system speed by 2 % As i understand it is the optimum size for cache 1024K when using SMARTDRV /Christer
tom@mims-iris.waterloo.edu (Tom Haapanen) (10/18/90)
Christer Palm <palm@admin.kth.se> writes: > Windows manual Chapter 13 > Setting the cache size to less than 256K is not effective. > Setting the cache size larger than 1024K might not be the best use of your > system's memory. On the other hand ... Table 3.1 in Windows SDK 3.0 Installation Guide shows the following as recommended (for development, of course): Standard mode RAM size SMARTDrive RAMDrive 1 MB 0 0 2 MB 0 0 3 MB 512 512 4 MB 1024 1024 .... 8 MB 2048 3072 .... 12 MB 4096 4096 386 Enhanced mode RAM size SMARTDrive RAMDrive 1 MB 0 0 2 MB 0 0 3 MB 512 0 4 MB 1024 0 .... 8 MB 2048 2048 .... 12 MB 4096 4096 For Windows in purely end-use, no development work, there is probably no point in having such a large RAMDrive. [ \tom haapanen --- university of waterloo --- tom@mims-iris.waterloo.edu ] [ "i don't even know what street canada is on" -- al capone ]