[GitHub] [skywalking] wankai123 commented on pull request #6277: Support Prometheus node-exporter VM metrics monitoring

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wankai123 commented on pull request #6277:
URL: https://github.com/apache/skywalking/pull/6277#issuecomment-769517916


   > Would we add some `single number` panels to show CPU percentage, cores' 
number, total mem to provide a glance at the global status of VM?
   > 
   > > ### Screenshots
   > > 
![1611819908548](https://user-images.githubusercontent.com/16773043/106216295-c8ecef80-620d-11eb-818b-a5611244e8fb.jpg)
   > > 
![1611829577489](https://user-images.githubusercontent.com/16773043/106216454-1bc6a700-620e-11eb-90b5-661dfe8fc2dc.jpg)
   
   Yep, I tried to do this. But the core's info in the label of the metrics, 
not a value， MAL can't calculate the labels now.
   So I can't get core' number and total CPU uesed percentage, I’m prepare to 
add a  function `count()` to calculate the
   labels number，then we can do this


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