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8314294: Unsafe::allocateMemory and Unsafe::freeMemory are slower than malloc/free

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Reviewed-by: shade, dlong
This commit is contained in:
David Holmes 2023-10-03 04:38:36 +00:00
parent 6e1aacdfba
commit 26c21f50a3
1 changed files with 3 additions and 3 deletions
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6
src/hotspot/share/prims/unsafe.cpp
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@ -335,7 +335,7 @@ UNSAFE_ENTRY(jobject, Unsafe_AllocateInstance(JNIEnv *env, jobject unsafe, jclas
return JNIHandles::make_local(THREAD, i);
} UNSAFE_END
UNSAFE_ENTRY(jlong, Unsafe_AllocateMemory0(JNIEnv *env, jobject unsafe, jlong size)) {
UNSAFE_LEAF(jlong, Unsafe_AllocateMemory0(JNIEnv *env, jobject unsafe, jlong size)) {
size_t sz = (size_t)size;
assert(is_aligned(sz, HeapWordSize), "sz not aligned");
@ -345,7 +345,7 @@ UNSAFE_ENTRY(jlong, Unsafe_AllocateMemory0(JNIEnv *env, jobject unsafe, jlong si
return addr_to_java(x);
} UNSAFE_END
UNSAFE_ENTRY(jlong, Unsafe_ReallocateMemory0(JNIEnv *env, jobject unsafe, jlong addr, jlong size)) {
UNSAFE_LEAF(jlong, Unsafe_ReallocateMemory0(JNIEnv *env, jobject unsafe, jlong addr, jlong size)) {
void* p = addr_from_java(addr);
size_t sz = (size_t)size;
@ -356,7 +356,7 @@ UNSAFE_ENTRY(jlong, Unsafe_ReallocateMemory0(JNIEnv *env, jobject unsafe, jlong
return addr_to_java(x);
} UNSAFE_END
UNSAFE_ENTRY(void, Unsafe_FreeMemory0(JNIEnv *env, jobject unsafe, jlong addr)) {
UNSAFE_LEAF(void, Unsafe_FreeMemory0(JNIEnv *env, jobject unsafe, jlong addr)) {
void* p = addr_from_java(addr);
os::free(p);