Cheri-research/snmalloc
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Minor changes to mpscq fast path.

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This commit is contained in:
Matthew Parkinson
2019-07-02 11:17:16 +01:00
parent 621b7e6b9a
commit d4e94d9c49
3 changed files with 14 additions and 12 deletions
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15
src/mem/alloc.h
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@@ -649,7 +649,8 @@ namespace snmalloc
return (id >> (initial_shift + (r * REMOTE_SLOT_BITS))) & REMOTE_MASK;
}
void dealloc(alloc_id_t target_id, void* p, sizeclass_t sizeclass)
FAST_PATH void
dealloc(alloc_id_t target_id, void* p, sizeclass_t sizeclass)
{
this->size += sizeclass_to_size(sizeclass);
@@ -838,9 +839,9 @@ namespace snmalloc
message_queue().init(&stub);
}
void handle_dealloc_remote(Remote* p)
FAST_PATH void handle_dealloc_remote(Remote* p)
{
if (p != &stub)
if (likely(p != &stub))
{
Superslab* super = Superslab::get(p);
@@ -884,16 +885,16 @@ namespace snmalloc
{
for (size_t i = 0; i < REMOTE_BATCH; i++)
{
Remote* r = message_queue().dequeue();
auto r = message_queue().dequeue();
if (r == nullptr)
if (unlikely(!r.second))
break;
handle_dealloc_remote(r);
handle_dealloc_remote(r.first);
}
// Our remote queues may be larger due to forwarding remote frees.
if (remote.size < REMOTE_CACHE)
if (likely(remote.size < REMOTE_CACHE))
return;
stats().remote_post();