processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 55
model name : Intel(R) Celeron(R) CPU N2930 @ 1.83GHz
stepping : 8
microcode : 0x80c
cpu MHz : 830.000
cache size : 1024 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 6
initial apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 11
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 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms
bogomips : 3666.81
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
Stream_omp Performance Test
代碼:
root@Aspire-E3-111:/tmp#
root@Aspire-E3-111:/tmp# ./stream_omp
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 2000000, Offset = 0
Total memory required = 45.8 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 9145 microseconds.
(= 9145 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function Rate (MB/s) Avg time Min time Max time
Copy: 4480.6452 0.0077 0.0071 0.0093
Scale: 4403.4688 0.0078 0.0073 0.0111
Add: 4713.2528 0.0110 0.0102 0.0144
Triad: 4840.6288 0.0108 0.0099 0.0142
-------------------------------------------------------------
Solution Validates
-------------------------------------------------------------
root@Aspire-E3-111:/tmp#
64-bit Ubuntu on Acer Aspire E3-111 bay trail ubuntu1404-acer.jpg
