b72c909899
Collect the number of modules and variants and some basic statistics on memory usage inside soong_build by writing out a proto that is read back in by soong_ui. Test: examine soong.log Change-Id: I6926876377a4f6229cf41fdbf166ae03c885ea55
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// Copyright 2020 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"io/ioutil"
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"runtime"
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"github.com/golang/protobuf/proto"
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soong_metrics_proto "android/soong/ui/metrics/metrics_proto"
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)
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var soongMetricsOnceKey = NewOnceKey("soong metrics")
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type SoongMetrics struct {
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Modules int
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Variants int
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}
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func ReadSoongMetrics(config Config) SoongMetrics {
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return config.Get(soongMetricsOnceKey).(SoongMetrics)
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}
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func init() {
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RegisterSingletonType("soong_metrics", soongMetricsSingletonFactory)
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}
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func soongMetricsSingletonFactory() Singleton { return soongMetricsSingleton{} }
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type soongMetricsSingleton struct{}
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func (soongMetricsSingleton) GenerateBuildActions(ctx SingletonContext) {
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metrics := SoongMetrics{}
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ctx.VisitAllModules(func(m Module) {
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if ctx.PrimaryModule(m) == m {
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metrics.Modules++
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}
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metrics.Variants++
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})
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ctx.Config().Once(soongMetricsOnceKey, func() interface{} {
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return metrics
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})
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}
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func collectMetrics(config Config) *soong_metrics_proto.SoongBuildMetrics {
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metrics := &soong_metrics_proto.SoongBuildMetrics{}
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soongMetrics := ReadSoongMetrics(config)
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metrics.Modules = proto.Uint32(uint32(soongMetrics.Modules))
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metrics.Variants = proto.Uint32(uint32(soongMetrics.Variants))
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memStats := runtime.MemStats{}
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runtime.ReadMemStats(&memStats)
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metrics.MaxHeapSize = proto.Uint64(memStats.HeapSys)
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metrics.TotalAllocCount = proto.Uint64(memStats.Mallocs)
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metrics.TotalAllocSize = proto.Uint64(memStats.TotalAlloc)
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return metrics
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}
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func WriteMetrics(config Config, metricsFile string) error {
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metrics := collectMetrics(config)
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buf, err := proto.Marshal(metrics)
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if err != nil {
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return err
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}
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err = ioutil.WriteFile(absolutePath(metricsFile), buf, 0666)
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if err != nil {
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return err
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}
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return nil
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}
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