Changeset 56ac392 for benchmark/readyQ/locality.cpp

Timestamp:

Apr 21, 2021, 3:02:42 PM (3 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

7711064

Parents:

b374dbc

Message:

Moved single_sem to rq_bench.hpp which was duplicated across multiple fibre benchmarks.

File:

• benchmark/readyQ/locality.cpp (modified) (1 diff)

benchmark/readyQ/locality.cpp

@@ -9 +9 @@
         uint64_t dmigs = 0;
         uint64_t gmigs = 0;
-};
-
-class __attribute__((aligned(128))) bench_sem {
-        Fibre * volatile ptr = nullptr;
-public:
-        inline bool wait() {
-                static Fibre * const ready  = reinterpret_cast<Fibre * const>(1ull);
-                for(;;) {
-                        Fibre * expected = this->ptr;
-                        if(expected == ready) {
-                                if(__atomic_compare_exchange_n(&this->ptr, &expected, nullptr, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) {
-                                        return false;
-                                }
-                        }
-                        else {
-                                /* paranoid */ assert( expected == nullptr );
-                                if(__atomic_compare_exchange_n(&this->ptr, &expected, fibre_self(), false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) {
-                                        fibre_park();
-                                        return true;
-                                }
-                        }
-
-                }
-        }
-
-        inline bool post() {
-                static Fibre * const ready  = reinterpret_cast<Fibre * const>(1ull);
-                for(;;) {
-                        Fibre * expected = this->ptr;
-                        if(expected == ready) return false;
-                        if(expected == nullptr) {
-                                if(__atomic_compare_exchange_n(&this->ptr, &expected, ready, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) {
-                                        return false;
-                                }
-                        }
-                        else {
-                                if(__atomic_compare_exchange_n(&this->ptr, &expected, nullptr, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) {
-                                        fibre_unpark( expected );
-                                        return true;
-                                }
-                        }
-                }
-        }
 };