| // Copyright 2015 The Bazel Authors. 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 |
| // |
| // 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 com.google.devtools.build.lib.profiler.output; |
| |
| import com.google.devtools.build.lib.profiler.TraceEvent; |
| import com.google.devtools.build.lib.profiler.statistics.CriticalPathStatistics; |
| import com.google.devtools.build.lib.util.TimeUtilities; |
| import java.io.PrintStream; |
| |
| /** |
| * Generate textual output from {@link CriticalPathStatistics}. |
| */ |
| public final class CriticalPathText extends TextPrinter { |
| private final CriticalPathStatistics criticalPathStats; |
| |
| public CriticalPathText(PrintStream out, CriticalPathStatistics critPathStats) { |
| super(out); |
| this.criticalPathStats = critPathStats; |
| } |
| |
| /** |
| * Print total and optimal critical paths if available. |
| */ |
| public void printCriticalPaths() { |
| long totalPathTimeNanos = criticalPathStats.getTotalDuration().toNanos(); |
| lnPrintf("%s (%s):", "Critical path", TimeUtilities.prettyTime(totalPathTimeNanos)); |
| lnPrintf("%11s %8s %s", "Time", "Percentage", "Description"); |
| |
| for (TraceEvent traceEvent : criticalPathStats.getCriticalPathEntries()) { |
| String description = traceEvent.name().replace(':', ' '); |
| lnPrintf( |
| "%11s %8s %s", |
| TimeUtilities.prettyTime(traceEvent.duration().toNanos()), |
| prettyPercentage((double) traceEvent.duration().toNanos() / totalPathTimeNanos), |
| description); |
| } |
| } |
| } |
| |
| |