apiVersion: ensurance.crane.io/v1alpha1
kind: PodQOS
metadata:
  name: sql
spec:
  labelSelector:
    matchLabels:
      k8s-app: low # Select the business label to apply 
  resourceQOS:
    memoryQOS:
      memAsyncReclaim:
        asyncRatio: 90 # asyncRatio represents the threshold for asynchronous reclamation. Reclamation starts when memory usage exceeds this proportion in the cgroup. The value range is [0-100]. It is recommended to set above 90. It is 0 by default, which means off
        asyncDistanceFactor: 200 # asyncDistanceFactor controls the total number of pages to be reclaimed each time asynchronous reclamation is triggered. It is 1 by default, with the value range of [1, 150000]

apiVersion: ensurance.crane.io/v1alpha1
kind: PodQOS
metadata:
  name: test
spec:
  labelSelector:
    matchLabels:
      k8s-app: low # Select the business label to apply 
  resourceQOS:
    memoryQOS:
      memWatermark:
        watermarkRatio: 50 # The value range of watermarkRatio is [-75,75]; negative values indicate the reduced threshold, mainly for online containers; and positive values indicate the elevated threshold, mainly for offline containers;

apiVersion: ensurance.crane.io/v1alpha1
kind: PodQOS
metadata:
  name: sql
spec:
  labelSelector:
    matchLabels:
      k8s-app: mysql
  resourceQOS:
    memoryQOS:
      memWatermark:
        watermarkRatio: -50

apiVersion: ensurance.crane.io/v1alpha1
kind: PodQOS
metadata:
  name: sql
spec:
  labelSelector:
    matchLabels:
      k8s-app: mysql-pi-000006 # Select the business label to apply 
  resourceQOS:
    memoryQOS:
      memPageCacheLimit:
        pageCacheMaxRatio: 20 # pageCacheMaxRatio represents the maximum ratio of pagecache usage to memory quota, based on the current memory limit. Therefore, to use this feature, memory thresholds must be set in the limits. For example, if the Pod memory threshold is 10 GB and pageCacheMaxRatio is 20%, then the pagecache is limited to using a maximum of 2 GB.
        pageCacheReclaimRatio: 5 # pageCacheReclaimRatio represents the reclamation ratio after pagecache exceeds its limit, specifically referring to the ratio of the maximum pagecache usage.