update FAQ with recommender target/upper/lower parameters

vertical-pod-autoscaler/FAQ.md

@@ -169,6 +169,12 @@ Name | Type | Description | Default
 `recommendation-margin-fraction` | Float64 | Fraction of usage added as the safety margin to the recommended request | 0.15
 `pod-recommendation-min-cpu-millicores` | Float64 | Minimum CPU recommendation for a pod | 25
 `pod-recommendation-min-memory-mb` | Float64 | Minimum memory recommendation for a pod | 250
+`target-cpu-percentile` | Float64 | CPU usage percentile that will be used as a base for CPU target recommendation | 0.9
+`recommendation-lower-bound-cpu-percentile` | Float64 | CPU usage percentile that will be used for the lower bound on CPU recommendation | 0.5
+`recommendation-upper-bound-cpu-percentile` | Float64 | CPU usage percentile that will be used for the upper bound on CPU recommendation | 0.95
+`target-memory-percentile` | Float64 | Memory usage percentile that will be used as a base for memory target recommendation | 0.9
+`recommendation-lower-bound-memory-percentile` | Float64 | Memory usage percentile that will be used for the lower bound on memory recommendation | 0.5
+`recommendation-upper-bound-memory-percentile` | Float64 | Memory usage percentile that will be used for the upper bound on memory recommendation | 0.95
 `checkpoints-timeout` | Duration | Timeout for writing checkpoints since the start of the recommender's main loop | time.Minute
 `min-checkpoints` | Int | Minimum number of checkpoints to write per recommender's main loop | 10
 `memory-saver` | Bool | If true, only track pods which have an associated VPA | false

vertical-pod-autoscaler/pkg/recommender/logic/recommender.go

@@ -32,8 +32,8 @@ var (
 	lowerBoundCPUPercentile    = flag.Float64("recommendation-lower-bound-cpu-percentile", 0.5, `CPU usage percentile that will be used for the lower bound on CPU recommendation.`)
 	upperBoundCPUPercentile    = flag.Float64("recommendation-upper-bound-cpu-percentile", 0.95, `CPU usage percentile that will be used for the upper bound on CPU recommendation.`)
 	targetMemoryPercentile     = flag.Float64("target-memory-percentile", 0.9, "Memory usage percentile that will be used as a base for memory target recommendation. Doesn't affect memory lower bound nor memory upper bound.")
-	lowerBoundMemoryPercentile = flag.Float64("recommendation-lower-bound-memory-percentile", 0.5, `Memory usage percentile that will used for the lower bound on memory recommendation.`)
-	upperBoundMemoryPercentile = flag.Float64("recommendation-upper-bound-memory-percentile", 0.95, `Memory usage percentile that will used for the upper bound on memory recommendation.`)
+	lowerBoundMemoryPercentile = flag.Float64("recommendation-lower-bound-memory-percentile", 0.5, `Memory usage percentile that will be used for the lower bound on memory recommendation.`)
+	upperBoundMemoryPercentile = flag.Float64("recommendation-upper-bound-memory-percentile", 0.95, `Memory usage percentile that will be used for the upper bound on memory recommendation.`)
 )
 
 // PodResourceRecommender computes resource recommendation for a Vpa object.