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Update 封装的一些基础工具.md #19

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18 changes: 18 additions & 0 deletions 封装的一些基础工具.md
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以3秒为周期，收集使用goleveldb过程中的延时和I/O数据量等指标。看起来很方便，但问题是我们如何使用这些收集来的信息呢？

我们可以使用命令列来看目前探针储存的讯息，命令格式如下：

```BASH
$geth monitor --attach /YOUR/GETH/IPC/ADDRESS 探针键
```

比方说我要看 txpool/invalid/Overall，就要输入下列的命令：

```BASH
$geth monitor --attach /YOUR/GETH/IPC/ADDRESS txpool/invalid/Overall
```

如果要看所有的键值，只要输入下列命令就行了

```BASH
$geth monitor --attach /YOUR/GETH/IPC/ADDRESS
```

## log（日志）
golang的内置log包一直被作为槽点，而以太坊项目也不例外。故引入了[log15](https://github.com/inconshreveable/log15)以解决日志使用不便的问题。

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