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introduce new stats item EvictedBytes #93

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Merged
f41gh7 merged 1 commit into from
Aug 6, 2025
Merged

introduce new stats item EvictedBytes #93

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11 changes: 9 additions & 2 deletions fastcache.go
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,9 @@ type Stats struct {
// MaxBytesSize is the maximum allowed size of the cache in bytes (aka capacity).
MaxBytesSize uint64

// EvictedBytes is the amount of bytes evicted from cache
EvictedBytes uint64

// BigStats contains stats for GetBig/SetBig methods.
BigStats
}
Expand Down Expand Up @@ -234,8 +237,9 @@ type bucket struct {
// idx points to chunks for writing the next (k, v) pair.
idx uint64

collisions uint64
corruptions uint64
collisions uint64
corruptions uint64
evictedBytes uint64
}

func (b *bucket) Init(maxBytes uint64) {
Expand Down Expand Up @@ -266,6 +270,7 @@ func (b *bucket) Reset() {
atomic.StoreUint64(&b.misses, 0)
atomic.StoreUint64(&b.collisions, 0)
atomic.StoreUint64(&b.corruptions, 0)
atomic.StoreUint64(&b.evictedBytes, 0)
b.mu.Unlock()
}

Expand Down Expand Up @@ -303,6 +308,7 @@ func (b *bucket) UpdateStats(s *Stats) {
s.Misses += atomic.LoadUint64(&b.misses)
s.Collisions += atomic.LoadUint64(&b.collisions)
s.Corruptions += atomic.LoadUint64(&b.corruptions)
s.EvictedBytes += atomic.LoadUint64(&b.evictedBytes)

b.mu.RLock()
s.EntriesCount += uint64(len(b.m))
Expand Down Expand Up @@ -371,6 +377,7 @@ func (b *bucket) Set(k, v []byte, h uint64) {
b.idx = idxNew
if needClean {
b.cleanLocked()
atomic.AddUint64(&b.evictedBytes, uint64(len(chunks)*chunkSize))
}
b.mu.Unlock()
}
Expand Down