test/gc/g1/TestSummarizeRSetStats.java
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rev 4735 : [mq]: 8013895
rev 4736 : Add per-region type information to the output of -XX:+G1SummarizeRSetStats
*** 23,164 ****
/*
* @test TestSummarizeRSetStats.java
* @bug 8013895
* @library /testlibrary
! * @build TestSummarizeRSetStats
! * @run main TestSummarizeRSetStats
* @summary Verify output of -XX:+G1SummarizeRSetStats
*
* Test the output of G1SummarizeRSetStats in conjunction with G1SummarizeRSetStatsPeriod.
*/
- import com.oracle.java.testlibrary.*;
- import java.lang.Thread;
- import java.util.ArrayList;
- import java.util.Arrays;
-
- class RunSystemGCs {
- // 4M size, both are directly allocated into the old gen
- static Object[] largeObject1 = new Object[1024 * 1024];
- static Object[] largeObject2 = new Object[1024 * 1024];
-
- static int[] temp;
-
- public static void main(String[] args) {
- // create some cross-references between these objects
- for (int i = 0; i < largeObject1.length; i++) {
- largeObject1[i] = largeObject2;
- }
-
- for (int i = 0; i < largeObject2.length; i++) {
- largeObject2[i] = largeObject1;
- }
-
- int numGCs = Integer.parseInt(args[0]);
-
- if (numGCs > 0) {
- // try to force a minor collection: the young gen is 4M, the
- // amount of data allocated below is roughly that (4*1024*1024 +
- // some header data)
- for (int i = 0; i < 1024 ; i++) {
- temp = new int[1024];
- }
- }
-
- for (int i = 0; i < numGCs - 1; i++) {
- System.gc();
- }
- }
- }
-
public class TestSummarizeRSetStats {
- public static String runTest(String[] additionalArgs, int numGCs) throws Exception {
- ArrayList<String> finalargs = new ArrayList<String>();
- String[] defaultArgs = new String[] {
- "-XX:+UseG1GC",
- "-Xmn4m",
- "-Xmx20m",
- "-XX:InitiatingHeapOccupancyPercent=100", // we don't want the additional GCs due to initial marking
- "-XX:+PrintGC",
- "-XX:+UnlockDiagnosticVMOptions",
- "-XX:G1HeapRegionSize=1M",
- };
-
- finalargs.addAll(Arrays.asList(defaultArgs));
-
- if (additionalArgs != null) {
- finalargs.addAll(Arrays.asList(additionalArgs));
- }
-
- finalargs.add(RunSystemGCs.class.getName());
- finalargs.add(String.valueOf(numGCs));
-
- ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
- finalargs.toArray(new String[0]));
- OutputAnalyzer output = new OutputAnalyzer(pb.start());
-
- output.shouldHaveExitValue(0);
-
- String result = output.getStdout();
- return result;
- }
-
- private static void expectStatistics(String result, int expectedCumulative, int expectedPeriodic) throws Exception {
- int actualTotal = result.split("Concurrent RS processed").length - 1;
- int actualCumulative = result.split("Cumulative RS summary").length - 1;
-
- if (expectedCumulative != actualCumulative) {
- throw new Exception("Incorrect amount of RSet summaries at the end. Expected " + expectedCumulative + ", got " + actualCumulative);
- }
-
- if (expectedPeriodic != (actualTotal - actualCumulative)) {
- throw new Exception("Incorrect amount of per-period RSet summaries at the end. Expected " + expectedPeriodic + ", got " + (actualTotal - actualCumulative));
- }
- }
-
public static void main(String[] args) throws Exception {
String result;
// no RSet statistics output
! result = runTest(null, 0);
! expectStatistics(result, 0, 0);
// no RSet statistics output
! result = runTest(null, 2);
! expectStatistics(result, 0, 0);
// no RSet statistics output
! result = runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
! expectStatistics(result, 0, 0);
// single RSet statistics output at the end
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0);
! expectStatistics(result, 1, 0);
// single RSet statistics output at the end
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2);
! expectStatistics(result, 1, 0);
// single RSet statistics output
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0);
! expectStatistics(result, 1, 0);
// two times RSet statistics output
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1);
! expectStatistics(result, 1, 1);
// four times RSet statistics output
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
! expectStatistics(result, 1, 3);
// three times RSet statistics output
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3);
! expectStatistics(result, 1, 2);
// single RSet statistics output
! result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3);
! expectStatistics(result, 1, 1);
}
}
--- 23,81 ----
/*
* @test TestSummarizeRSetStats.java
* @bug 8013895
* @library /testlibrary
! * @build TestSummarizeRSetStatsTools TestSummarizeRSetStats
* @summary Verify output of -XX:+G1SummarizeRSetStats
+ * @run main TestSummarizeRSetStats
*
* Test the output of G1SummarizeRSetStats in conjunction with G1SummarizeRSetStatsPeriod.
*/
public class TestSummarizeRSetStats {
public static void main(String[] args) throws Exception {
String result;
// no RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(null, 0);
! TestSummarizeRSetStatsTools.expectStatistics(result, 0, 0);
// no RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(null, 2);
! TestSummarizeRSetStatsTools.expectStatistics(result, 0, 0);
// no RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
! TestSummarizeRSetStatsTools.expectStatistics(result, 0, 0);
// single RSet statistics output at the end
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 0);
// single RSet statistics output at the end
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 0);
// single RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 0);
// two times RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 1);
// four times RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 3);
// three times RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 2);
// single RSet statistics output
! result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3);
! TestSummarizeRSetStatsTools.expectStatistics(result, 1, 1);
}
}