dmurdoch@watstat.waterloo.edu (Duncan Murdoch) (03/14/90)
A while ago I wrote: >>I'd like to measure the performance of a couple of disk cache programs in real >>use. The obvious measurement as to how well they're performing is the number >>of cache hits versus misses; however, neither of them keeps track. and then asked for a general purpose hit counter. I didn't find one (though I was told that PCKwik (sp?) comes with one tailored to it), so I ended up writing a simple one myself. It comes in two versions: a device driver and a TSR. Neither one does anything but hook to the BIOS disk read interrupt and keep count of requests. A third program looks through memory for copies of the others, and reports what they've found. Anyone who wants a copy please email me; I'll collect together responses and mail out copies in a week or so. By the way, I haven't done a detailed comparison yet, but MS SMARTDRV and Mace MCACH-EM seem to perform about equally. Duncan Murdoch