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atomic.cpp: shrink and simplify main hashtable

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Reduce collision detection to 1 or 0 for now.
I think it should be offloaded to notifiers.
This commit is contained in:
Nekotekina 2020-11-26 07:35:25 +03:00
parent 8b6d615aa6
commit bd90e3e37f
2 changed files with 41 additions and 97 deletions
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16
rpcs3/Emu/System.cpp
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@ -89,7 +89,7 @@ namespace
namespace atomic_wait
{
extern void parse_hashtable(bool(*cb)(u64 id, u16 refs, u32 ptr, u32 stats));
extern void parse_hashtable(bool(*cb)(u64 id, u32 refs, u64 ptr, u32 stats));
}
template<>
@ -1919,19 +1919,13 @@ void Emulator::Stop(bool restart)
aw_colc = 0;
aw_used = 0;
atomic_wait::parse_hashtable([](u64 id, u16 refs, u32 ptr, u32 stats) -> bool
atomic_wait::parse_hashtable([](u64 id, u32 refs, u64 ptr, u32 maxc) -> bool
{
aw_refs += refs;
aw_refs += refs != 0;
aw_used += ptr != 0;
stats = (stats & 0xaaaaaaaa) / 2 + (stats & 0x55555555);
stats = (stats & 0xcccccccc) / 4 + (stats & 0x33333333);
stats = (stats & 0xf0f0f0f0) / 16 + (stats & 0xf0f0f0f);
stats = (stats & 0xff00ff00) / 256 + (stats & 0xff00ff);
stats = (stats >> 16) + (stats & 0xffff);
aw_colm = std::max<u64>(aw_colm, stats);
aw_colc += stats != 0;
aw_colm = std::max<u64>(aw_colm, maxc);
aw_colc += maxc != 0;
return false;
});