diff options
| -rw-r--r-- | lib/hash.c | 9 | ||||
| -rw-r--r-- | lib/hash.h | 4 |
2 files changed, 4 insertions, 9 deletions
diff --git a/lib/hash.c b/lib/hash.c index 62a39953c..bdb2e097c 100644 --- a/lib/hash.c +++ b/lib/hash.c @@ -87,13 +87,8 @@ hash_alloc_intern (void *arg) } #define hash_update_ssq(hz, old, new) \ - do { \ - long double res; \ - res = powl(old, 2.0); \ - hz->stats.ssq -= (uint64_t) res;\ - res = powl(new, 2.0); \ - hz->stats.ssq += (uint64_t) res; \ - } while (0); \ + atomic_fetch_add_explicit(&hz->stats.ssq, (new + old)*(new - old),\ + memory_order_relaxed); /* Expand hash if the chain length exceeds the threshold. */ static void hash_expand (struct hash *hash) diff --git a/lib/hash.h b/lib/hash.h index 01d2b1ddc..3b2671afa 100644 --- a/lib/hash.h +++ b/lib/hash.h @@ -53,9 +53,9 @@ struct hash_backet struct hashstats { /* number of empty hash buckets */ - _Atomic int empty; + _Atomic uint_fast32_t empty; /* sum of squares of bucket length */ - _Atomic uint64_t ssq; + _Atomic uint_fast32_t ssq; }; struct hash |