底层io.Worker由单线程改成并发 #381
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底层io.Worker由单线程改成并发 #381
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merge master
change: ioWorker性能优化, 单worker -> 多worker
fix: goroutine内引用err, 可能引起panic
laiwei
approved these changes
Mar 7, 2018
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请同步修改一下 falcon-plus / config / graph.json @GaoJiasheng |
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Done |
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说明：底层io.Worker由单线程改成并发。可以更加充分发挥磁盘读写的性能，单线程io不再是性能瓶颈。
原理：按照rrdFile的md5进行分片。
分片方式：取md5前N位，求余。
验证：已经过线上生产环境验证。
附：N计算公式：len(strconv.FormatInt(int64(BatchNum), 16))
via 钱威