cruff@ncar.ucar.edu (Craig Ruff) (09/21/88)
In article <16102@shemp.CS.UCLA.EDU> casey@cs.ucla.edu (Casey Leedom) writes: > The problem turned out to be that the Sun 3/2XX cache was 64Kb with 16 >byte lines indexed by a formula very dependent on the LSBs of the >address. ... > > We finally got Sun 3/1XX performance by offsetting the source and >destination arrays by 24 bytes. ... This is discussed in a Sun Sales Tactical Engineering note titled: The Sun 3/200 and Sun 4/200 Cache Ask your Sun rep to get you a copy. It discusses the way the cache works and performance issues like that above. -- Craig Ruff NCAR INTERNET: cruff@ncar.UCAR.EDU (303) 497-1211 P.O. Box 3000 CSNET: cruff@ncar.CSNET Boulder, CO 80307 UUCP: cruff@ncar.UUCP