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some pthread test progs
[tridge/junkcode.git]
/
memtest.c
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#include <stdio.h>
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#include <stdlib.h>
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int main(int argc, char *argv[])
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{
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int *buf;
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int size;
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int i, count;
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if (argc < 2) {
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printf("memtest <size>\n");
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exit(1);
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}
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size = atoi(argv[1]);
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buf = (int *)malloc(size);
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size /= sizeof(*buf);
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count = 0;
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for (i=0;i<size;i++)
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buf[i] = i;
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while (count < (1<<30)) {
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i = random() % size;
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if (buf[i] != i)
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printf("\nbuf[%d]=%d\n", i, buf[i]);
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count++;
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if (count % 100000 == 0)
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printf("%d\r", count);
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fflush(stdout);
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buf[i] = i;
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}
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return 0;
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}