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Add unit test for opt.huge_threshold.

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Qi Wang 2018-06-01 15:58:31 -07:00 committed by Qi Wang
parent 1302af4c43
commit ff622eeab5
2 changed files with 109 additions and 0 deletions
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1
Makefile.in
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@ -174,6 +174,7 @@ TESTS_UNIT := \
$(srcroot)test/unit/fork.c \ $(srcroot)test/unit/fork.c \
$(srcroot)test/unit/hash.c \ $(srcroot)test/unit/hash.c \
$(srcroot)test/unit/hook.c \ $(srcroot)test/unit/hook.c \
$(srcroot)test/unit/huge.c \
$(srcroot)test/unit/junk.c \ $(srcroot)test/unit/junk.c \
$(srcroot)test/unit/junk_alloc.c \ $(srcroot)test/unit/junk_alloc.c \
$(srcroot)test/unit/junk_free.c \ $(srcroot)test/unit/junk_free.c \

108
test/unit/huge.c Normal file
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@ -0,0 +1,108 @@
#include "test/jemalloc_test.h"
/* Threshold: 2 << 20 = 2097152. */
const char *malloc_conf = "huge_threshold:2097152";
#define HUGE_SZ (2 << 20)
#define SMALL_SZ (8)
TEST_BEGIN(huge_bind_thread) {
unsigned arena1, arena2;
size_t sz = sizeof(unsigned);
/* Bind to a manual arena. */
assert_d_eq(mallctl("arenas.create", &arena1, &sz, NULL, 0), 0,
"Failed to create arena");
assert_d_eq(mallctl("thread.arena", NULL, NULL, &arena1,
sizeof(arena1)), 0, "Fail to bind thread");
void *ptr = mallocx(HUGE_SZ, 0);
assert_ptr_not_null(ptr, "Fail to allocate huge size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &ptr,
sizeof(ptr)), 0, "Unexpected mallctl() failure");
assert_u_eq(arena1, arena2, "Wrong arena used after binding");
dallocx(ptr, 0);
/* Switch back to arena 0. */
test_skip_if(have_percpu_arena &&
PERCPU_ARENA_ENABLED(opt_percpu_arena));
arena2 = 0;
assert_d_eq(mallctl("thread.arena", NULL, NULL, &arena2,
sizeof(arena2)), 0, "Fail to bind thread");
ptr = mallocx(SMALL_SZ, MALLOCX_TCACHE_NONE);
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &ptr,
sizeof(ptr)), 0, "Unexpected mallctl() failure");
assert_u_eq(arena2, 0, "Wrong arena used after binding");
dallocx(ptr, MALLOCX_TCACHE_NONE);
/* Then huge allocation should use the huge arena. */
ptr = mallocx(HUGE_SZ, 0);
assert_ptr_not_null(ptr, "Fail to allocate huge size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &ptr,
sizeof(ptr)), 0, "Unexpected mallctl() failure");
assert_u_ne(arena2, 0, "Wrong arena used after binding");
assert_u_ne(arena1, arena2, "Wrong arena used after binding");
dallocx(ptr, 0);
}
TEST_END
TEST_BEGIN(huge_mallocx) {
unsigned arena1, arena2;
size_t sz = sizeof(unsigned);
assert_d_eq(mallctl("arenas.create", &arena1, &sz, NULL, 0), 0,
"Failed to create arena");
void *huge = mallocx(HUGE_SZ, MALLOCX_ARENA(arena1));
assert_ptr_not_null(huge, "Fail to allocate huge size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &huge,
sizeof(huge)), 0, "Unexpected mallctl() failure");
assert_u_eq(arena1, arena2, "Wrong arena used for mallocx");
dallocx(huge, MALLOCX_ARENA(arena1));
void *huge2 = mallocx(HUGE_SZ, 0);
assert_ptr_not_null(huge, "Fail to allocate huge size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &huge2,
sizeof(huge2)), 0, "Unexpected mallctl() failure");
assert_u_ne(arena1, arena2,
"Huge allocation should not come from the manual arena.");
assert_u_ne(arena2, 0,
"Huge allocation should not come from the arena 0.");
dallocx(huge2, 0);
}
TEST_END
TEST_BEGIN(huge_allocation) {
unsigned arena1, arena2;
void *ptr = mallocx(HUGE_SZ, 0);
assert_ptr_not_null(ptr, "Fail to allocate huge size");
size_t sz = sizeof(unsigned);
assert_d_eq(mallctl("arenas.lookup", &arena1, &sz, &ptr, sizeof(ptr)),
0, "Unexpected mallctl() failure");
assert_u_gt(arena1, 0, "Huge allocation should not come from arena 0");
dallocx(ptr, 0);
ptr = mallocx(HUGE_SZ >> 1, 0);
assert_ptr_not_null(ptr, "Fail to allocate half huge size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &ptr,
sizeof(ptr)), 0, "Unexpected mallctl() failure");
assert_u_ne(arena1, arena2, "Wrong arena used for half huge");
dallocx(ptr, 0);
ptr = mallocx(SMALL_SZ, MALLOCX_TCACHE_NONE);
assert_ptr_not_null(ptr, "Fail to allocate small size");
assert_d_eq(mallctl("arenas.lookup", &arena2, &sz, &ptr,
sizeof(ptr)), 0, "Unexpected mallctl() failure");
assert_u_ne(arena1, arena2,
"Huge and small should be from different arenas");
dallocx(ptr, 0);
}
TEST_END
int
main(void) {
return test(
huge_allocation,
huge_mallocx,
huge_bind_thread);
}