forked from TrueCloudLab/frostfs-node
70 lines
1.2 KiB
Go
70 lines
1.2 KiB
Go
package writecache
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"sync/atomic"
|
|
)
|
|
|
|
func (c *cache) estimateCacheSize() uint64 {
|
|
db := c.objCounters.DB() * c.smallObjectSize
|
|
fstree := c.objCounters.FS() * c.maxObjectSize
|
|
c.metrics.SetEstimateSize(db, fstree)
|
|
return db + fstree
|
|
}
|
|
|
|
func (c *cache) incSizeDB(sz uint64) uint64 {
|
|
return sz + c.smallObjectSize
|
|
}
|
|
|
|
func (c *cache) incSizeFS(sz uint64) uint64 {
|
|
return sz + c.maxObjectSize
|
|
}
|
|
|
|
type counters struct {
|
|
cDB, cFS atomic.Uint64
|
|
}
|
|
|
|
func (x *counters) IncDB() {
|
|
x.cDB.Add(1)
|
|
}
|
|
|
|
func (x *counters) DecDB() {
|
|
x.cDB.Add(math.MaxUint64)
|
|
}
|
|
|
|
func (x *counters) DB() uint64 {
|
|
return x.cDB.Load()
|
|
}
|
|
|
|
func (x *counters) IncFS() {
|
|
x.cFS.Add(1)
|
|
}
|
|
|
|
func (x *counters) DecFS() {
|
|
x.cFS.Add(math.MaxUint64)
|
|
}
|
|
|
|
func (x *counters) FS() uint64 {
|
|
return x.cFS.Load()
|
|
}
|
|
|
|
func (c *cache) initCounters() error {
|
|
stats, err := c.repo.Stats()
|
|
if err != nil {
|
|
return fmt.Errorf("could not read write-cache DB counter: %w", err)
|
|
}
|
|
|
|
inDB := stats.KeyCount
|
|
|
|
inFS, err := c.fsTree.NumberOfObjects()
|
|
if err != nil {
|
|
return fmt.Errorf("could not read write-cache FS counter: %w", err)
|
|
}
|
|
|
|
c.objCounters.cDB.Store(inDB)
|
|
c.objCounters.cFS.Store(inFS)
|
|
c.metrics.SetActualCounters(inDB, inFS)
|
|
|
|
return nil
|
|
}
|