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metrics.go
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metrics.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// 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
//
// http://www.apache.org/licenses/LICENSE-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 OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package preemption
import (
"github.com/uber/peloton/pkg/common/scalar"
"github.com/uber-go/tally"
)
// Metrics is a placeholder for all metrics in preemption
type Metrics struct {
RevocableRunningTasksToPreempt tally.Counter
RevocableNonRunningTasksToPreempt tally.Counter
NonRevocableRunningTasksToPreempt tally.Counter
NonRevocableNonRunningTasksToPreempt tally.Counter
PreemptionQueueSize tally.Gauge
TasksToEvict tally.Gauge
TasksFailedPreemption tally.Counter
NonSlackTotalResourcesToFree scalar.CounterMaps
NonSlackNonRunningTasksResourcesFreed scalar.CounterMaps
NonSlackRunningTasksResourcesToFreed scalar.CounterMaps
SlackTotalResourcesToFree scalar.CounterMaps
SlackNonRunningTasksResourcesFreed scalar.CounterMaps
SlackRunningTasksResourcesToFreed scalar.CounterMaps
OverAllocationCount tally.Gauge
}
// NewMetrics returns a new instance of preemption.Metrics
func NewMetrics(scope tally.Scope) *Metrics {
return &Metrics{
RevocableRunningTasksToPreempt: scope.Counter("revocable_running_tasks"),
RevocableNonRunningTasksToPreempt: scope.Counter("revocable_non_running_tasks"),
NonRevocableRunningTasksToPreempt: scope.Counter("non_revocable_running_tasks"),
NonRevocableNonRunningTasksToPreempt: scope.Counter("non_revocable_non_running_tasks"),
TasksFailedPreemption: scope.Counter("num_tasks_failed"),
PreemptionQueueSize: scope.Gauge("preemption_queue_size"),
TasksToEvict: scope.Gauge("tasks_to_evict"),
NonSlackTotalResourcesToFree: scalar.NewCounterMaps(scope.SubScope("non_slack_total_resources_to_free")),
NonSlackNonRunningTasksResourcesFreed: scalar.NewCounterMaps(scope.SubScope("non_slack_non_running_tasks_resources_freed")),
NonSlackRunningTasksResourcesToFreed: scalar.NewCounterMaps(scope.SubScope("non_slack_running_tasks_resources_freed")),
SlackTotalResourcesToFree: scalar.NewCounterMaps(scope.SubScope("slack_total_resources_to_free")),
SlackNonRunningTasksResourcesFreed: scalar.NewCounterMaps(scope.SubScope("slack_non_running_tasks_resources_freed")),
SlackRunningTasksResourcesToFreed: scalar.NewCounterMaps(scope.SubScope("slack_running_tasks_resources_freed")),
OverAllocationCount: scope.Gauge("over_allocation_count"),
}
}