vrr@cbnewsj.att.com (veenu.r.rashid) (03/15/91)
In article <1991Mar15.000705.23258@msuinfo.cl.msu.edu> jap@convex.cl.msu.edu (Joe Porkka) writes: > >The speed rating of the RAM chips has nothing to do with how >fast the computer accesses them. The computers design decides >how fast it will access memory, so the chips you put in need to >be at least that fast. > >Why is your chip mem slow? You probly have either a deep screen, say >8 or 16 colors, or an overscanned screen. Set you display to be >640x400 4 colors, then run your tests. > >Why can't you get >1Meg/sec xfer rates? Your hard disk isn't expensive >enough :-) I have a Quantum LP52S and a Quantum 105S and I still can't get rates that high. I get rates of ~650k/s on the LP52 and about 400k/s on the 105. I have tried everything. The drives are formatted ffs. I set the mask using advanced options in HDToolBox for the 105S. It was originally set to '0x7ffffffe' by the auto read parameters when I formatted it. I changed it to '0x7ffffffc' to be the same as the parameters on the 52S which came with my drive. This made access a bit faster, but not much. What could the problem be? Is it the format or the filesystem or the mask or something that I still haven't considered? Please email any suggestion, tips, etc. to vrr@cbnewsj.att.com. For those of you with the original LP52S in the A3000, what are your transfer rates (use DPerf2 or Diskspeed) Thanks very much, Veenu vrr@cbnewsj.att.com