Changeset 7030dab for benchmark/basic/ttst_lock.c

Timestamp:

Apr 6, 2020, 4:46:28 PM (6 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

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

Children:

e3bc51c

Parents:

71d6bd8 (diff), 057298e (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' into new-ast

File:

• benchmark/basic/ttst_lock.c (moved) (moved from benchmark/ttst_lock.c ) (2 diffs)

benchmark/basic/ttst_lock.c

@@ -3 +3 @@
 
 #include "bench.h"
+
+// Does a "lock xchg" on entry but a simple "mov" on exit => cheaper as 0 contention. While it has much more code, the
+// bulk is never run.
 
 #define CALIGN __attribute__(( aligned (CACHE_ALIGN) ))
@@ -35 +38 @@
 }
 
-int main(int argc, char* argv[]) {
+int main( int argc, char * argv[] ) {
+        BENCH_START()
         BENCH(
-                for (size_t i = 0; i < n; i++) {
+                for (size_t i = 0; i < times; i++) {
                         do_call();
                 },
                 result
-                )
-
-                printf("%g\n", result);
+        )
+        printf( "%g\n", result );
 }