test/gc/shenandoah/TestPeriodicGC.java

rev 10604 : [backport] Comprehensible GC trigger logging

*** 41,54 ****
          cmds[args.length + 1] = "test";
          ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
  
          OutputAnalyzer output = new OutputAnalyzer(pb.start());
          output.shouldHaveExitValue(0);
!         if (periodic && !output.getOutput().contains("Periodic GC")) {
              throw new AssertionError(msg + ": Should have periodic GC in logs");
          }
!         if (!periodic && output.getOutput().contains("Periodic GC")) {
              throw new AssertionError(msg + ": Should not have periodic GC in logs");
          }
      }
  
      public static void main(String[] args) throws Exception {
--- 41,54 ----
          cmds[args.length + 1] = "test";
          ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
  
          OutputAnalyzer output = new OutputAnalyzer(pb.start());
          output.shouldHaveExitValue(0);
!         if (periodic && !output.getOutput().contains("Trigger: Time since last GC")) {
              throw new AssertionError(msg + ": Should have periodic GC in logs");
          }
!         if (!periodic && output.getOutput().contains("Trigger: Time since last GC")) {
              throw new AssertionError(msg + ": Should not have periodic GC in logs");
          }
      }
  
      public static void main(String[] args) throws Exception {
*** 69,89 ****
          };
  
          for (String h : enabled) {
              testWith("Short period with " + h,
                  true,
!                 "-XX:+PrintGCDetails",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=1000"
              );
  
              testWith("Long period with " + h,
                  false,
!                 "-XX:+PrintGCDetails",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long
--- 69,89 ----
          };
  
          for (String h : enabled) {
              testWith("Short period with " + h,
                  true,
!                 "-verbose:gc",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=1000"
              );
  
              testWith("Long period with " + h,
                  false,
!                 "-verbose:gc",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long
*** 91,101 ****
          }
  
          for (String h : disabled) {
              testWith("Short period with " + h,
                  false,
!                 "-XX:+PrintGCDetails",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=1000"
--- 91,101 ----
          }
  
          for (String h : disabled) {
              testWith("Short period with " + h,
                  false,
!                 "-verbose:gc",
                  "-XX:+UseShenandoahGC",
                  "-XX:+UnlockDiagnosticVMOptions",
                  "-XX:+UnlockExperimentalVMOptions",
                  "-XX:ShenandoahGCHeuristics=" + h,
                  "-XX:ShenandoahGuaranteedGCInterval=1000"