Thank you for the Stream Benchmark Reference . I compiled stream.c with " cc -fast -o stream stream.c " with the studio12 compiler on SNV_67 with no warnings or errors.
The results for my older PC with the Athlon 64 X2 4800+ and DDR400 Ram is: ------------------------------------------------------------- Function Rate (MB/s) Avg time Min time Max time Copy: 2301.1752 0.0142 0.0139 0.0145 Scale: 2229.3462 0.0145 0.0144 0.0147 Add: 2580.2267 0.0189 0.0186 0.0194 Triad: 2609.1122 0.0186 0.0184 0.0190 ------------------------------------------------------------- and the result for the new box Running SNV_69 with Athlon 64 X2 6000+ and DDR2/800 Ram is: ------------------------------------------------------------- Function Rate (MB/s) Avg time Min time Max time Copy: 4475.4722 0.0072 0.0072 0.0076 Scale: 4085.3004 0.0079 0.0078 0.0080 Add: 4878.4870 0.0099 0.0098 0.0099 Triad: 4924.0952 0.0098 0.0097 0.0102 ------------------------------------------------------------- So yes , Thanks to the Stream Benchmark I have now sort of proved that the new DDR2 memory controller on the AM2 socket Athlon's very nearly doubles memory throughput. Thanks again //Lars This message posted from opensolaris.org _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org