diff options
| -rw-r--r-- | src/libserver/symbols_cache.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/libserver/symbols_cache.c b/src/libserver/symbols_cache.c index 3fa90fbd3..4f37de867 100644 --- a/src/libserver/symbols_cache.c +++ b/src/libserver/symbols_cache.c @@ -91,14 +91,16 @@ static double rspamd_set_counter (struct cache_item *item, guint32 value) { struct counter_data *cd; - double alpha; cd = item->cd; - /* Calculate new value */ + /* Cumulative moving average */ rspamd_mempool_lock_mutex (item->mtx); - alpha = 2. / (++cd->number + 1); - cd->value = cd->value * (1. - alpha) + value * alpha; + if (cd->number == 0) { + cd->value = 0; + } + + cd->value = cd->value + (value - cd->value) / (++cd->number); rspamd_mempool_unlock_mutex (item->mtx); |