Changeset 5407cdc for benchmark/readyQ/locality.cpp

Timestamp:

Apr 28, 2021, 4:56:50 PM (5 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:

8d66610

Parents:

feacef9 (diff), b7fd2db6 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

File:

• benchmark/readyQ/locality.cpp (modified) (3 diffs)

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;
-                                }
-                        }
-                }
-        }
 };
 
@@ -287 +244 @@
 
                         bool is_tty = isatty(STDOUT_FILENO);
-                        start = getTimeNsec();
+                        start = timeHiRes();
 
                         for(size_t i = 0; i < nthreads; i++) {
@@ -295 +252 @@
 
                         stop = true;
-                        end = getTimeNsec();
+                        end = timeHiRes();
                         printf("\nDone\n");