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8309265: Serial: Remove the code related to GC overheap limit

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Reviewed-by: ayang, tschatzl
This commit is contained in:
Guoxiong Li 2023-06-03 03:45:21 +00:00
parent 61bb014a86
commit 6edd786bf6
2 changed files with 4 additions and 30 deletions
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31
src/hotspot/share/gc/shared/genCollectedHeap.cpp
View File

@ -278,12 +278,7 @@ HeapWord* GenCollectedHeap::expand_heap_and_allocate(size_t size, bool is_tlab
}
HeapWord* GenCollectedHeap::mem_allocate_work(size_t size,
bool is_tlab,
bool* gc_overhead_limit_was_exceeded) {
// In general gc_overhead_limit_was_exceeded should be false so
// set it so here and reset it to true only if the gc time
// limit is being exceeded as checked below.
*gc_overhead_limit_was_exceeded = false;
bool is_tlab) {
HeapWord* result = nullptr;
@ -365,23 +360,6 @@ HeapWord* GenCollectedHeap::mem_allocate_work(size_t size,
continue; // Retry and/or stall as necessary.
}
// Allocation has failed and a collection
// has been done. If the gc time limit was exceeded the
// this time, return null so that an out-of-memory
// will be thrown. Clear gc_overhead_limit_exceeded
// so that the overhead exceeded does not persist.
const bool limit_exceeded = size_policy()->gc_overhead_limit_exceeded();
const bool softrefs_clear = soft_ref_policy()->all_soft_refs_clear();
if (limit_exceeded && softrefs_clear) {
*gc_overhead_limit_was_exceeded = true;
size_policy()->set_gc_overhead_limit_exceeded(false);
if (op.result() != nullptr) {
CollectedHeap::fill_with_object(op.result(), size);
}
return nullptr;
}
assert(result == nullptr || is_in_reserved(result),
"result not in heap");
return result;
@ -418,8 +396,7 @@ HeapWord* GenCollectedHeap::attempt_allocation(size_t size,
HeapWord* GenCollectedHeap::mem_allocate(size_t size,
bool* gc_overhead_limit_was_exceeded) {
return mem_allocate_work(size,
false /* is_tlab */,
gc_overhead_limit_was_exceeded);
false /* is_tlab */);
}
bool GenCollectedHeap::must_clear_all_soft_refs() {
@ -935,10 +912,8 @@ size_t GenCollectedHeap::unsafe_max_tlab_alloc(Thread* thr) const {
HeapWord* GenCollectedHeap::allocate_new_tlab(size_t min_size,
size_t requested_size,
size_t* actual_size) {
bool gc_overhead_limit_was_exceeded;
HeapWord* result = mem_allocate_work(requested_size /* size */,
true /* is_tlab */,
&gc_overhead_limit_was_exceeded);
true /* is_tlab */);
if (result != nullptr) {
*actual_size = requested_size;
}

3
src/hotspot/share/gc/shared/genCollectedHeap.hpp
View File

@ -376,8 +376,7 @@ private:
HeapWord* expand_heap_and_allocate(size_t size, bool is_tlab);
HeapWord* mem_allocate_work(size_t size,
bool is_tlab,
bool* gc_overhead_limit_was_exceeded);
bool is_tlab);
#if INCLUDE_SERIALGC
// For use by mark-sweep. As implemented, mark-sweep-compact is global