/
cache_size.go
44 lines (39 loc) · 1.5 KB
/
cache_size.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* https://opensource.org/licenses/Apache-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package cachesize
import (
"k8s.io/apimachinery/pkg/runtime/schema"
)
// NewHeuristicWatchCacheSizes returns a map of suggested watch cache sizes
// based on total memory.
func NewHeuristicWatchCacheSizes(expectedRAMCapacityMB int) map[schema.GroupResource]int {
size := expectedRAMCapacityMB / 10
// We should specify cache size for a given resource only if it
// is supposed to have non-default value.
watchCacheSizes := make(map[schema.GroupResource]int)
watchCacheSizes[schema.GroupResource{Resource: "cluster", Group: "platform.tkestack.io"}] = maxInt(5*size, 1000)
watchCacheSizes[schema.GroupResource{Resource: "machine"}] = maxInt(10*size, 1000)
watchCacheSizes[schema.GroupResource{Resource: "project"}] = maxInt(5*size, 1000)
return watchCacheSizes
}
func maxInt(a, b int) int {
if a > b {
return a
}
return b
}