matteo@apu:~/benchs$ make run
./dry 2>/dev/null
Dhrystone Benchmark, Version C, Version 2.3
Program compiled without 'register' attribute
Using clock_gettime(), HZ=1000
Running 1 thread(s)
Microseconds for one run through Dhrystone: 0.2
Dhrystones per Second: 4555394
./flops
FLOPS C Program (Double Precision), V2.0 18 Dec 1992
Module Error RunTime MFLOPS
(usec)
1 4.0146e-13 0.0311 450.0079
2 -1.4166e-13 0.0150 465.9566
3 4.7184e-14 0.0286 594.0002
4 -1.2557e-13 0.0352 426.6526
5 -1.3800e-13 0.0673 430.8670
6 3.2380e-13 0.0531 545.6429
7 -8.4583e-11 0.0612 196.2192
8 3.4867e-13 0.0532 563.6808
Iterations = 512000000
NullTime (usec) = 0.0000
MFLOPS(1) = 501.2830
MFLOPS(2) = 330.4590
MFLOPS(3) = 442.8004
MFLOPS(4) = 534.8321
matteo@macchiatobin:~/benchs$ make run
./dry 2>/dev/null
Dhrystone Benchmark, Version C, Version 2.3
Program compiled without 'register' attribute
Using clock_gettime(), HZ=1000
Running 1 thread(s)
Microseconds for one run through Dhrystone: 0.1
Dhrystones per Second: 20193860
./flops
FLOPS C Program (Double Precision), V2.0 18 Dec 1992
Module Error RunTime MFLOPS
(usec)
1 4.0146e-13 0.0080 1749.6233
2 -1.4166e-13 0.0061 1142.5937
3 4.7184e-14 0.0074 2287.2820
4 -1.2546e-13 0.0079 1894.2127
5 -1.3800e-13 0.0147 1968.4418
6 3.2374e-13 0.0128 2270.7655
7 -8.4583e-11 0.0240 499.8931
8 3.4855e-13 0.0143 2102.0712
Iterations = 512000000
NullTime (usec) = 0.0000
MFLOPS(1) = 1366.1036
MFLOPS(2) = 1034.8795
MFLOPS(3) = 1637.9972
MFLOPS(4) = 2146.5341
matteo@apu:~$ time { dd if=/dev/zero bs=1G count=1 status=none | sha1sum ; }
2a492f15396a6768bcbca016993f4b4c8b0b5307 -
real 0m16.611s
user 0m12.438s
sys 0m7.397s
matteo@macchiatobin:~$ time { dd if=/dev/zero bs=1G count=1 status=none | sha1sum ; }
2a492f15396a6768bcbca016993f4b4c8b0b5307 -
real 0m5,204s
user 0m4,468s
sys 0m1,193s
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