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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
// Copyright 2015 Google Inc. 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.actions.MiddlemanAction;
import com.google.devtools.build.lib.profiler.ProfileInfo.CriticalPathEntry;
import com.google.devtools.build.lib.profiler.statistics.CriticalPathStatistics;
import com.google.devtools.build.lib.util.Pair;
import com.google.devtools.build.lib.util.TimeUtilities;
import java.io.PrintStream;
/**
* Generate textual output from {@link CriticalPathStatistics}.
*/
//TODO(bazel-team): Also print remote vs build stats recorded by Logging.CriticalPathStats
public final class CriticalPathText extends TextPrinter {
private final CriticalPathStatistics criticalPathStats;
private long executionTime;
public CriticalPathText(
PrintStream out, CriticalPathStatistics critPathStats, long executionTime) {
super(out);
this.criticalPathStats = critPathStats;
this.executionTime = executionTime;
}
public void printTimingBreakdown() {
CriticalPathEntry totalPath = criticalPathStats.getTotalPath();
CriticalPathEntry optimalPath = criticalPathStats.getOptimalPath();
if (totalPath != null) {
if (!totalPath.isComponent()) {
printCriticalPathTimingBreakdown(totalPath, optimalPath);
}
} else {
lnPrint("Critical path not available because no action graph was generated.");
}
}
void printCriticalPathTimingBreakdown(
CriticalPathEntry totalPath, CriticalPathEntry optimalPath) {
lnPrint(totalPath.task.type);
lnPrintf(
TWO_COLUMN_FORMAT,
"Worker thread scheduling delays",
TimeUtilities.prettyTime(criticalPathStats.getWorkerWaitTime()));
lnPrintf(
TWO_COLUMN_FORMAT,
"Main thread scheduling delays",
TimeUtilities.prettyTime(criticalPathStats.getMainThreadWaitTime()));
printLn();
lnPrint("Critical path time:");
long totalTime = totalPath.cumulativeDuration;
lnPrintf(
"%-37s %10s (%s of execution time)",
"Actual time",
TimeUtilities.prettyTime(totalTime),
prettyPercentage((double) totalTime / executionTime));
long optimalTime = optimalPath.cumulativeDuration;
lnPrintf(
"%-37s %10s (%s of execution time)",
"Time excluding scheduling delays",
TimeUtilities.prettyTime(optimalTime),
prettyPercentage((double) optimalTime / executionTime));
printLn();
// Artificial critical path if we ignore all the time spent in all tasks,
// except time directly attributed to the ACTION tasks.
lnPrint("Time related to:");
for (Pair<String, Double> relativePathDuration : criticalPathStats) {
lnPrintf(
TWO_COLUMN_FORMAT,
relativePathDuration.first,
prettyPercentage(relativePathDuration.second));
}
}
/**
* Print total and optimal critical paths if available.
*/
public void printCriticalPaths() {
CriticalPathEntry totalPath = criticalPathStats.getTotalPath();
printCriticalPath("Critical path", totalPath);
// In critical path components we do not record scheduling delay data so it does not make
// sense to differentiate it.
if (!totalPath.isComponent()) {
printCriticalPath(
"Critical path excluding scheduling delays", criticalPathStats.getOptimalPath());
}
}
private void printCriticalPath(String title, CriticalPathEntry path) {
lnPrintf("%s (%s):", title, TimeUtilities.prettyTime(path.cumulativeDuration));
boolean isComponent = path.isComponent();
if (isComponent) {
lnPrintf("%6s %11s %8s %s", "Id", "Time", "Percentage", "Description");
} else {
lnPrintf("%6s %11s %8s %8s %s", "Id", "Time", "Share", "Critical", "Description");
}
long totalPathTime = path.cumulativeDuration;
int middlemanCount = 0;
long middlemanDuration = 0L;
long middlemanCritTime = 0L;
for (; path != null; path = path.next) {
if (path.task.id < 0) {
// Ignore fake actions.
continue;
} else if (path.task.getDescription().startsWith(MiddlemanAction.MIDDLEMAN_MNEMONIC + " ")
|| path.task.getDescription().startsWith("TargetCompletionMiddleman")) {
// Aggregate middleman actions.
middlemanCount++;
middlemanDuration += path.duration;
middlemanCritTime += path.getCriticalTime();
} else {
String desc = path.task.getDescription().replace(':', ' ');
if (isComponent) {
lnPrintf(
"%6d %11s %8s %s",
path.task.id,
TimeUtilities.prettyTime(path.duration),
prettyPercentage((double) path.duration / totalPathTime),
desc);
} else {
lnPrintf(
"%6d %11s %8s %8s %s",
path.task.id,
TimeUtilities.prettyTime(path.duration),
prettyPercentage((double) path.duration / totalPathTime),
prettyPercentage((double) path.getCriticalTime() / totalPathTime),
desc);
}
}
}
if (middlemanCount > 0) {
if (isComponent) {
lnPrintf(
" %11s %8s [%d middleman actions]",
TimeUtilities.prettyTime(middlemanDuration),
prettyPercentage((double) middlemanDuration / totalPathTime),
middlemanCount);
} else {
lnPrintf(
" %11s %8s %8s [%d middleman actions]",
TimeUtilities.prettyTime(middlemanDuration),
prettyPercentage((double) middlemanDuration / totalPathTime),
prettyPercentage((double) middlemanCritTime / totalPathTime),
middlemanCount);
}
}
}
}
|
