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add cache alignment directives for contended variables

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This commit is contained in:
daan
2020-01-24 19:02:13 -08:00
parent e070eba112
commit b31bc52618
6 changed files with 27 additions and 23 deletions
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6
test/test-stress.c
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@@ -32,10 +32,10 @@ static int ITER = 50; // N full iterations destructing and re-creating a
// static int THREADS = 8; // more repeatable if THREADS <= #processors
// static int SCALE = 100; // scaling factor
#define STRESS // undefine for leak test
// #define STRESS // undefine for leak test
static bool allow_large_objects = true; // allow very large objects?
static size_t use_one_size = 1; // use single object size of `N * sizeof(uintptr_t)`?
static size_t use_one_size = 0; // use single object size of `N * sizeof(uintptr_t)`?
#ifdef USE_STD_MALLOC
@@ -198,7 +198,7 @@ static void test_stress(void) {
static void leak(intptr_t tid) {
uintptr_t r = (43*tid)^ticks();
void* p = alloc_items(pick(&r)%128, &r);
void* p = alloc_items(1 /*pick(&r)%128*/, &r);
if (chance(50, &r)) {
intptr_t i = (pick(&r) % TRANSFERS);
void* q = atomic_exchange_ptr(&transfer[i], p);