[Question] <title>采集器是否有问题？采集数据异常

### Question

1Panel和hertzbeat的监控数据不同，hertzbeat大多数数据都是整数，精度异常，以以下CPU采集数据为例：
1Panel中的监控数据带有小数，且波动正常
hertzbeat中的监控数据是整数，且波动异常

Start by reproducing the CPU monitoring comparison between 1Panel and HertzBeat and inspect how the collector handles precision and value changes. There are no files or tests named in the issue, so identify the relevant collector entry point first. Done means HertzBeat reports decimal CPU values with fluctuations consistent with 1Panel.

Written by the indexing model from the issue text.