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Fix 32-bit count wrap in chase counter #55

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Fix 32-bit count wrap in chase counter #55

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4 changes: 2 additions & 2 deletions multichase.c
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Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,7 @@ typedef union {
char pad[AVOID_FALSE_SHARING];
struct {
unsigned thread_num; // which thread is this
unsigned count; // count of number of iterations
uint64_t count; // count of number of iterations
void *cycle[MAX_PARALLEL]; // initial address for the chases
const char *extra_args;
int dummy; // useful for confusing the compiler
Expand Down Expand Up @@ -493,7 +493,7 @@ static void *thread_start(void *data) {
args->x.genchase_args->arena + args->x.genchase_args->total_memory);
#endif
}

// now flush our caches
if (args->x.cache_flush_size) {
size_t nr_elts = args->x.cache_flush_size / sizeof(size_t);
Expand Down