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efa0f1d7bd
The simwork tests check different cache simulator options/modes. These tests should be extended to check for the produced call graph. The threads check tests the callgrind mode where counts are aggregated separate per thread. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5816
48 lines
650 B
C
48 lines
650 B
C
/* A simple example with 4 threads */
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#include <pthread.h>
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#include <unistd.h>
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double a[1000];
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static void init()
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{
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int i;
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for(i=0;i<1000;i++) a[i] = (double)i;
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}
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static void *th(void *v)
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{
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double sum = 0.0;
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int i,j;
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for(j=0;j<1000;j++)
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for(i=0;i<1000;i++)
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sum += a[i];
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*( (double*)v ) = sum;
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/* make sure that no threads is so fast that it finishes
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* before last thread is created, thus reusing the TID */
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sleep(1);
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return 0;
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}
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int main()
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{
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pthread_t t[4];
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double sum[4];
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int i;
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init();
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for(i=0;i<4;i++)
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pthread_create(&t[i], NULL, th, &sum[i]);
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for(i=0;i<4;i++)
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pthread_join(t[i], NULL);
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return 0;
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}
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