45 lines
911 B
HolyC
45 lines
911 B
HolyC
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//$WW,1$You may wonder why I use "&" instead of "%".
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#define SAMPLE_SIZE 100000000
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U0 TimeIns()
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{
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I64 start1,end1,start2,end2,overhead_time,test_time;
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I64 reg i,reg tmp;
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CPURep;
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//Measure Loop Overhead
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start1=GetTSC;
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for (i=0;i<SAMPLE_SIZE;i++) {
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}
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end1=GetTSC;
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overhead_time=end1-start1;
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//Measure remainder...
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start2=GetTSC;
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for (i=0;i<SAMPLE_SIZE;i++)
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tmp=i%0x400;
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end2=GetTSC;
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test_time=end2-start2;
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"Remainder Version #1 Cycles\t: %10.5f\n",
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ToF64(test_time-overhead_time)/SAMPLE_SIZE;
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//Measure remainder...
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start2=GetTSC;
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for (i=0;i<SAMPLE_SIZE;i++)
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tmp=i&0x3FF;
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end2=GetTSC;
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test_time=end2-start2;
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"Remainder Version #2 Cycles\t: %10.5f\n",
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ToF64(test_time-overhead_time)/SAMPLE_SIZE;
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}
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TimeIns;
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/* Program Output$HL,0$$WW+H,1$$FD,1$
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8 Cores 2.660GHz
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Remainder Version #1 Cycles : 26.85345
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Remainder Version #2 Cycles : -0.00800
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$HL,1$*/
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