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ethdb: update write delay statistic

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rjl493456442 2017-12-15 10:59:48 +08:00
parent 4b5757c36c
commit 522e0d4424
1 changed files with 31 additions and 17 deletions
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48
ethdb/database.go
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@ -40,17 +40,17 @@ type LDBDatabase struct {
fn string // filename for reporting
db *leveldb.DB // LevelDB instance
getTimer gometrics.Timer // Timer for measuring the database get request counts and latencies
putTimer gometrics.Timer // Timer for measuring the database put request counts and latencies
delTimer gometrics.Timer // Timer for measuring the database delete request counts and latencies
writeDelayTimer gometrics.Timer // Timer for measuring the write delay duration due to database compaction
missMeter gometrics.Meter // Meter for measuring the missed database get requests
readMeter gometrics.Meter // Meter for measuring the database get request data usage
writeMeter gometrics.Meter // Meter for measuring the database put request data usage
writeDelayMeter gometrics.Meter // Meter for measuring the write delay number due to database compaction
compTimeMeter gometrics.Meter // Meter for measuring the total time spent in database compaction
compReadMeter gometrics.Meter // Meter for measuring the data read during compaction
compWriteMeter gometrics.Meter // Meter for measuring the data written during compaction
getTimer gometrics.Timer // Timer for measuring the database get request counts and latencies
putTimer gometrics.Timer // Timer for measuring the database put request counts and latencies
delTimer gometrics.Timer // Timer for measuring the database delete request counts and latencies
missMeter gometrics.Meter // Meter for measuring the missed database get requests
readMeter gometrics.Meter // Meter for measuring the database get request data usage
writeMeter gometrics.Meter // Meter for measuring the database put request data usage
writeDelayNMeter gometrics.Meter // Meter for measuring the write delay number due to database compaction
writeDelayMeter gometrics.Meter // Meter for measuring the write delay duration due to database compaction
compTimeMeter gometrics.Meter // Meter for measuring the total time spent in database compaction
compReadMeter gometrics.Meter // Meter for measuring the data read during compaction
compWriteMeter gometrics.Meter // Meter for measuring the data written during compaction
quitLock sync.Mutex // Mutex protecting the quit channel access
quitChan chan chan error // Quit channel to stop the metrics collection before closing the database
@ -190,8 +190,8 @@ func (db *LDBDatabase) Meter(prefix string) {
db.readMeter = metrics.NewMeter(prefix + "user/reads")
db.writeMeter = metrics.NewMeter(prefix + "user/writes")
db.writeDelayTimer = metrics.NewTimer(prefix + "compact/writedelay/duration")
db.writeDelayMeter = metrics.NewMeter(prefix + "compact/writedelay/counter")
db.writeDelayMeter = metrics.NewMeter(prefix + "compact/writedelay/duration")
db.writeDelayNMeter = metrics.NewMeter(prefix + "compact/writedelay/counter")
db.compTimeMeter = metrics.NewMeter(prefix + "compact/time")
db.compReadMeter = metrics.NewMeter(prefix + "compact/input")
db.compWriteMeter = metrics.NewMeter(prefix + "compact/output")
@ -275,15 +275,29 @@ func (db *LDBDatabase) meter(refresh time.Duration) {
db.log.Error("Failed to read database write delay statistic", "err", err)
return
}
if n, err := fmt.Sscanf(writeDelay, "DelayN: %f Delay(sec):%.5f", &counters[i%2][3], &counters[i%2][4]); n != 2 || err != nil {
var (
delayN int32
delayDuration string
duration time.Duration
)
if n, err := fmt.Sscanf(writeDelay, "DelayN:%d Delay:%s", &delayN, &delayDuration); n != 2 || err != nil {
db.log.Error("Write delay statistic not found")
return
}
if db.writeDelayTimer != nil {
db.writeDelayTimer.Update(time.Duration(int64((counters[i%2][4] - counters[(i-1)%2][4]) * 1000 * 1000 * 1000)))
duration, err = time.ParseDuration(delayDuration)
if err != nil {
db.log.Error("Failed to parse delay duration", "err", err)
return
}
counters[i%2][3], counters[i%2][4] = float64(delayN), float64(duration.Nanoseconds())
if db.writeDelayNMeter != nil {
db.writeDelayNMeter.Mark(int64((counters[i%2][3] - counters[(i-1)%2][3])))
}
if db.writeDelayMeter != nil {
db.writeDelayMeter.Mark(int64((counters[i%2][3] - counters[(i-1)%2][3])))
db.writeDelayMeter.Mark(int64((counters[i%2][4] - counters[(i-1)%2][4])))
}
// Sleep a bit, then repeat the stats collection
select {