mirror of
https://github.com/servalproject/serval-dna.git
synced 2024-12-27 16:38:53 +00:00
bf9710fd5a
This only affects build_android, if nacl-gcc-prep is run then build/`uname -s` will be created.
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
#include <time.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include "cpucycles-impl.h"
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static long long tod(void)
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{
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struct timeval t;
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gettimeofday(&t,(struct timezone *) 0);
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return t.tv_sec * (long long) 1000000 + t.tv_usec;
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}
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long long todstart;
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long long todend;
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long long cpustart;
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long long cpuend;
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long long cyclespersecond;
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long long cyclespertod;
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long long t[1001];
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int main()
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{
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int j;
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int i;
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if (!cpucycles()) {
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fprintf(stderr,"cpucycles() = %lld\n",cpucycles());
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return 100;
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}
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for (i = 0;i <= 1000;++i) t[i] = cpucycles();
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for (i = 0;i < 1000;++i) if (t[i] > t[i + 1]) {
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fprintf(stderr,"t[%d] = %lld\n",i,t[i]);
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fprintf(stderr,"t[%d] = %lld\n",i + 1,t[i + 1]);
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fprintf(stderr,"cpucycles_persecond() = %lld\n",cpucycles_persecond());
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return 100;
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}
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if (t[0] == t[1000]) {
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fprintf(stderr,"t[%d] = %lld\n",0,t[0]);
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fprintf(stderr,"t[%d] = %lld\n",1000,t[1000]);
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fprintf(stderr,"cpucycles_persecond() = %lld\n",cpucycles_persecond());
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return 100;
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}
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cyclespersecond = cpucycles_persecond();
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if (cyclespersecond <= 0) {
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fprintf(stderr,"cpucycles_persecond() = %lld\n",cyclespersecond);
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return 100;
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}
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todstart = tod();
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cpustart = cpucycles();
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for (j = 0;j < 1000;++j) for (i = 0;i <= 1000;++i) t[i] = t[i] + i + j;
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todend = tod();
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cpuend = cpucycles();
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todend -= todstart;
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cpuend -= cpustart;
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cyclespertod = (long long) (((double) cpuend) * 1000000.0 / (double) todend);
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if (cyclespertod > 10 * cyclespersecond) {
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fprintf(stderr,"cyclespertod = %lld, cyclespersecond = %lld\n",cyclespertod,cyclespersecond);
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return 100;
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}
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for (i = 0;i <= 1000;++i) t[i] = cpucycles();
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printf("%s",cpucycles_implementation);
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printf(" %lld",cyclespersecond);
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printf(" %lld",cyclespertod);
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for (i = 0;i < 64;++i) printf(" %lld",t[i + 1] - t[i]);
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printf("\n");
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return 0;
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}
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