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Retain DTO on each cycle.

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Change-Id: Ifc6f68f98eacb01097771d0dbf043c98bba1d518
This commit is contained in:
Matt T. Proud 2013-09-05 10:14:34 +02:00
parent df2f9e47b8
commit 86fcbe5bde
1 changed files with 13 additions and 10 deletions
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23
storage/metric/leveldb.go
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@ -345,8 +345,14 @@ func (l *LevelDBMetricPersistence) AppendSamples(samples clientmodel.Samples) (e
samplesBatch := leveldb.NewBatch()
defer samplesBatch.Close()
key := new(SampleKey)
keyDto := new(dto.SampleKey)
value := new(dto.SampleValueSeries)
for fingerprint, group := range fingerprintToSamples {
for {
value.Reset()
lengthOfGroup := len(group)
if lengthOfGroup == 0 {
@ -361,24 +367,21 @@ func (l *LevelDBMetricPersistence) AppendSamples(samples clientmodel.Samples) (e
chunk := group[0:take]
group = group[take:lengthOfGroup]
key := SampleKey{
Fingerprint: &fingerprint,
FirstTimestamp: chunk[0].Timestamp,
LastTimestamp: chunk[take-1].Timestamp,
SampleCount: uint32(take),
}
key.Fingerprint = &fingerprint
key.FirstTimestamp = chunk[0].Timestamp
key.LastTimestamp = chunk[take-1].Timestamp
key.SampleCount = uint32(take)
value := &dto.SampleValueSeries{}
for _, sample := range chunk {
// XXX: Candidate for allocation reduction.
value.Value = append(value.Value, &dto.SampleValueSeries_Value{
Timestamp: proto.Int64(sample.Timestamp.Unix()),
Value: proto.Float64(float64(sample.Value)),
})
}
k := &dto.SampleKey{}
key.Dump(k)
samplesBatch.Put(k, value)
key.Dump(keyDto)
samplesBatch.Put(keyDto, value)
}
}