1 /*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package utils;
24
25 import common.ToolResults;
26
27 /**
28 * Results of running the jstat tool Concrete subclasses will detail the jstat
29 * tool options
30 */
31 abstract public class JstatResults extends ToolResults {
32
33 public JstatResults(ToolResults rawResults) {
34 super(rawResults);
35 }
36
37 /**
38 * Gets a string result from the column labeled 'name'
39 *
40 * @param name - name of the column
41 * @return the result
42 */
43 public String getStringValue(String name) {
44 int valueNdx = new StringOfValues(getStdoutLine(0)).getIndex(name);
45 return new StringOfValues(getStdoutLine(1)).getValue(valueNdx);
46 }
47
48 /**
49 * Gets a float result from the column labeled 'name'
50 *
51 * @param name - name of the column
52 * @return the result
53 */
54 public float getFloatValue(String name) {
55 int valueNdx = new StringOfValues(getStdoutLine(0)).getIndex(name);
56 return Float.valueOf(new StringOfValues(getStdoutLine(1)).getValue(valueNdx));
57 }
58
59 /**
60 * Gets an integer result from the column labeled 'name'
61 *
62 * @param name - name of the column
63 * @return the result
64 */
65 public int getIntValue(String name) {
66 int valueNdx = new StringOfValues(getStdoutLine(0)).getIndex(name);
67 return Integer.valueOf(new StringOfValues(getStdoutLine(1)).getValue(valueNdx));
68 }
69
70 /**
71 * Checks if a column with a given name exists
72 *
73 * @param name - name of the column
74 * @return true if the column exist, false otherwise
75 */
76 public boolean valueExists(String name) {
77 return new StringOfValues(getStdoutLine(0)).getIndex(name) != -1;
78 }
79
80 /**
81 * Helper function to assert the increase of the GC events between 2
82 * measurements
83 *
84 * @param measurement1 -first measurement
85 * @param measurement2 -first measurement
86 */
87 public static void assertGCEventsIncreased(JstatResults measurement1, JstatResults measurement2) {
88 assertThat(measurement2.getFloatValue("YGC") > measurement1.getFloatValue("YGC"), "YGC didn't increase between measurements 1 and 2");
89 boolean increasedFGC =
90 measurement2.getFloatValue("FGC") > measurement1.getFloatValue("FGC");
91 boolean increasedCGC =
92 measurement2.getFloatValue("CGC") > measurement1.getFloatValue("CGC");
93 assertThat(increasedFGC || increasedCGC, "FGC and CGC both don't increase between measurents 2 and 3");
94 }
95
96 /**
97 * Helper function to assert the increase of the GC time between 2
98 * measurements
99 *
100 * @param measurement1 -first measurement
101 * @param measurement2 -first measurement
102 */
103 public static void assertGCTimeIncreased(JstatResults measurement1, JstatResults measurement2) {
104 assertThat(measurement2.getFloatValue("YGCT") > measurement1.getFloatValue("YGCT"), "YGCT time didn't increase between measurements 1 and 2");
105 boolean increasedFGCT =
106 measurement2.getFloatValue("FGCT") > measurement1.getFloatValue("FGCT");
107 boolean increasedCGCT =
108 measurement2.getFloatValue("CGCT") > measurement1.getFloatValue("CGCT");
109 assertThat(increasedFGCT || increasedCGCT, "FGCT or CGCT didn't increase between measurements 2 and 3");
110 assertThat(measurement2.getFloatValue("GCT") > measurement1.getFloatValue("GCT"), "GCT time didn't increase between measurements 1 and 2");
111 }
112
113 /**
114 * Helper function to assert the utilization of the space
115 *
116 * @param measurement - measurement results to analyze
117 * @param targetMemoryUsagePercent -assert that not less than this amount of
118 * space has been utilized
119 */
120 public static void assertSpaceUtilization(JstatResults measurement, float targetMemoryUsagePercent) {
121
122 if (measurement.valueExists("OU")) {
123 float OC = measurement.getFloatValue("OC");
124 float OU = measurement.getFloatValue("OU");
125 assertThat((OU / OC) > targetMemoryUsagePercent, "Old space utilization should be > "
126 + (targetMemoryUsagePercent * 100) + "%, actually OU / OC = " + (OU / OC));
127 }
128
129 if (measurement.valueExists("MU")) {
130 float MC = measurement.getFloatValue("MC");
131 float MU = measurement.getFloatValue("MU");
132 assertThat((MU / MC) > targetMemoryUsagePercent, "Metaspace utilization should be > "
133 + (targetMemoryUsagePercent * 100) + "%, actually MU / MC = " + (MU / MC));
134 }
135
136 if (measurement.valueExists("O")) {
137 float O = measurement.getFloatValue("O");
138 assertThat(O > targetMemoryUsagePercent * 100, "Old space utilization should be > "
139 + (targetMemoryUsagePercent * 100) + "%, actually O = " + O);
140 }
141
142 if (measurement.valueExists("M")) {
143 float M = measurement.getFloatValue("M");
144 assertThat(M > targetMemoryUsagePercent * 100, "Metaspace utilization should be > "
145 + (targetMemoryUsagePercent * 100) + "%, actually M = " + M);
146 }
147 }
148
149 private static void assertThat(boolean result, String message) {
150 if (!result) {
151 throw new RuntimeException(message);
152 }
153 }
154
155 }