rokicki@polya.Stanford.EDU (Tomas G. Rokicki) (01/26/89)
Current setup (Ronin memory, 75% full disk, largely fragmented): time copy 4mb new.4mb => 192.12 seconds == 43,663 bytes per second time copy 4mb nil: => 45.46 seconds == 92,264 bytes per second (God, I hadn't realized how bad that is! Of course, you're seeking all over the place in that copy to do the read/write/read/write stuff . . .) Setup without the memory (but still the 68020) under the above conditions: time copy 4mb new.4mb => 24.52 seconds == 342,113 bytes per second time copy 4mb nil: => 7.12 seconds == 589,088 bytes per second My disk is really badly fragmented and I need to fix that somehow. When I first got the drive I was getting read/write speeds of 650-700K. Oh, yeah, the two 4mb files increased the disk to 84% full, at which point maybe the fragmentation was really starting to show. Also, by four megabytes I think you mean exactly 2^22, or 4194304. More fuel for the fire. -tom