Vlákno názorů k článku Test: paměti mají čtyřistakrát delší latenci než procesory od PACi - model name :...
-
PACi (neregistrovaný)model name : Intel(R) Atom(TM) CPU 230 @ 1.60GHz
cpu MHz : 1596.121
cache size : 512 KB
model name : Intel(R) Atom(TM) CPU 230 @ 1.60GHz
cpu MHz : 1596.121
cache size : 512 KB
AVG CPU CLOCKS FOR DEPENDENT INDEPENDENT
rdtsc 30.021 29.021
32bit add 1.000 0.508
32*32->64bit imul 6.018 9.020
0*0 imul 6.018
64/32->32.32 div 49.092
64bit fadd 5.110 2.055
64bit NaN+x fadd 388.991 412.490
64bit fmul 5.000 2.058
64bit fdiv 71.190 71.006
32bit load from L1-cache 2.504 pitch=4B
typical L1-miss load 33.449 pitch=74B
out of memory !
skoncilo ot nejak divne... :-( -
Asi bylo malo volne pameti.netbook AMILO Ui3520 (fujitsu-siemens) model name : Intel(R) Atom(TM) CPU N270 @ 1.60GHz cpu MHz : 1600.970 cache size : 32 KB AVG CPU CLOCKS FOR DEPENDENT INDEPENDENT rdtsc 30.021 29.021 32bit add 1.000 0.508 32*32->64bit imul 6.082 9.143 0*0 imul 6.082 64/32->32.32 div 49.748 64bit fadd 5.110 2.055 64bit NaN+x fadd 393.982 415.798 64bit fmul 5.000 2.058 64bit fdiv 72.115 71.006 32bit load from L1-cache 2.504 pitch=4B typical L1-miss load 34.159 pitch=74B load from RAM 245.08ns 392.362 pitch=1048572B load from RAM 217.02ns 347.437 pitch=1048572B (1-pass cache flush) OLD VERSION READ-TEST: 32bit load from L1-cache 2.004 pitch=4B typical L1-miss load 17.336 pitch=74B load from RAM 126.31ns 202.212 pitch=1048572B load from RAM 104.41ns 167.162 pitch=1048572B (1-pass cache flush)ten test potrebuje zhruba 700MB volne ramky.
