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Improve multithreading

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This commit is contained in:
Justine Tunney 2024-07-21 06:41:30 -07:00
parent d3167126aa
commit 30afd6ddbb
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GPG key ID: BE714B4575D6E328
38 changed files with 752 additions and 174 deletions
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6
test/libc/intrin/cosmo_once_test.c
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@ -50,12 +50,10 @@ TEST(cosmo_once, test) {
pthread_t th[N];
x = y = 0;
ASSERT_EQ(0, pthread_barrier_init(&b, 0, N));
for (i = 0; i < N; ++i) {
for (i = 0; i < N; ++i)
ASSERT_EQ(0, pthread_create(th + i, 0, Worker, 0));
}
for (i = 0; i < N; ++i) {
for (i = 0; i < N; ++i)
ASSERT_EQ(0, pthread_join(th[i], 0));
}
ASSERT_EQ(N, atomic_load(&x));
ASSERT_EQ(1, atomic_load(&y));
ASSERT_EQ(0, pthread_barrier_destroy(&b));

13
test/libc/intrin/mmap_test.c
View file

@ -528,18 +528,21 @@ TEST(mmap, sharedFileMapFork) {
int count;
void *ptrs[N];
size_t sizes[N];
void BenchMmapPrivate(void) {
void *p;
p = mmap(0, gransz * 10, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE,
-1, 0);
p = mmap(0, (sizes[count] = rand() % (pagesz * 500)), PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
if (p == MAP_FAILED)
__builtin_trap();
ptrs[count++] = p;
ptrs[count] = p;
++count;
}
void BenchUnmap(void) {
if (munmap(ptrs[--count], gransz * 10))
--count;
if (munmap(ptrs[count], sizes[count]))
__builtin_trap();
}
@ -557,7 +560,7 @@ void BenchBigMunmap(void) {
__builtin_trap();
}
BENCH(mmap, bench) {
TEST(mmap, bench) {
EZBENCH2("mmap", donothing, BenchMmapPrivate());
EZBENCH2("munmap", donothing, BenchUnmap());
// EZBENCH2("big mmap", donothing, BenchBigMmap());