Proves de velocitat de dalmem
Aquestes proves es fan per a la majoria de les funcions de dalmem, i aquí veiem els millors resultats.
Actualment (Versió 1.0.1) es fa servir un espai de 32KB, així que els resultats són només de la caché (la velocitat de la RAM no hauria d'afectar a aquests resultats).
Cada bloc de cada funció (10 trucades consecutives) es crida 50 cops, i s'apunta el millor resultat. 50x10 trucades aconsegueixen normalment que la CPU funcioni a la seva màxima velocitat.
Si vols reproduïr aquestes proves a les teves pròpies màquines, descarrega si us plau el codi font de dalib (provat nomès en Linux), compila'l i prova'l tú mateix (fes un cop d'ull als arxius README i INSTALL).
Raw test results:
Test environment: 32.0KB buffer, every test is performed 50 times with 10 iterations, seed is just half the buffer. Version 1.0.1
+--------- Option0 ---------+--------- Option1 ---------+--------- Option2 ---------+--------- Option3 ---------+Best
Function name |F us B/s S us B/s|F us B/s S us B/s|F us B/s S us B/s|F us B/s S us B/s| F S
memsearch8 R| 21.2 1.43G 10.6 1.43G| 21.2 1.43G 10.6 1.43G| 21.2 1.43G 10.6 1.43G| 1.5 20.3G 0.7 21.7G| 3 3
memsearch16 R| 10.6 2.87G 5.3 2.87G| 10.6 2.87G 5.3 2.87G| 10.6 2.87G 5.3 2.87G| 1.8 16.9G 0.9 16.9G| 3 3
memsearch32 R| 5.3 5.75G 2.6 5.86G| 5.3 5.75G 2.6 5.86G| 5.3 5.75G 2.6 5.86G| 1.5 20.3G 0.7 21.7G| 3 3
memsearch64 R| 2.6 11.7G 1.3 11.7G| | | | 0 0
memsearch8r R| 39.9 764M 19.5 782M| 2.5 12.2G 1.2 12.7G| | | 1 1
memsearch16r R| 13.5 2.26G 8.5 1.79G| | | | 0 0
memsearch32r R| 6.8 4.48G 3.5 4.35G| | | | 0 0
memsearch64r R| 4.1 7.44G 2.0 7.62G| | | | 0 0
memsearch8ri R| 30.6 997M 14.8 1.03G| 2.3 13.2G 1.1 13.8G| | | 1 1
memsearch16ri R| 18.0 1.69G 6.6 2.31G| | | | 0 0
memsearch32ri R| 6.8 4.48G 3.5 4.35G| | | | 0 0
memsearch64ri R| 4.1 7.44G 2.0 7.62G| | | | 0 0
bitmapsearch8 R| 21.2 1.43G 10.6 1.43G| 1.7 17.9G 0.8 19.0G| | | 1 1
bitmapsearch16 R| 10.6 2.87G 5.3 2.87G| 1.7 17.9G 0.8 19.0G| | | 1 1
bitmapsearch32 R| 5.3 5.75G 2.6 5.86G| 1.7 17.9G 0.8 19.0G| | | 1 1
bitmapsearch64 R| 2.7 11.3G 1.3 11.7G| | | | 0 0
bitmapsearch8r R| 51.6 591M 25.0 610M| 2.7 11.3G 1.3 11.7G| | | 1 1
bitmapsearch16r R| 12.0 2.54G 6.0 2.54G| | | | 0 0
bitmapsearch32r R| 36.9 827M 17.6 866M| | | | 0 0
bitmapsearch64r R| 4.1 7.44G 2.0 7.62G| | | | 0 0
ChkSum32 R| 4.1 7.44G | 3.6 8.47G | 4.6 6.63G | | 1
All tests passed.
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Processor data (only one entry):
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 42
model name : Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz
stepping : 7
cpu MHz : 3093.272
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt xsave avx lahf_lm arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 6186.54
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
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Notes:
Intel H67, dual bank DDR3 1333 RAM
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