125         // It should decrease during first half of iterations

   125         // The test case does 3 rounds of allocations.  The second round of N allocations and GC's

   126         // and increase after.

   126         // has a decreasing size of allocations so that iterations N to 2*N -1 will be of decreasing size.

   127         List<Long> decreasedPlabs = plabSizes.subList(testCase.getIterations(), testCase.getIterations() * 2);

   127         // The third round with iterations 2*N to 3*N -1 has increasing sizes of allocation.

   128         List<Long> increasedPlabs = plabSizes.subList(testCase.getIterations() * 2, testCase.getIterations() * 3);

   128         long startDesiredPLABSize = plabSizes.get(testCase.getIterations());

   129 

   129         long endDesiredPLABSize = plabSizes.get(testCase.getIterations() * 2 - 1);

   130         Long prev = decreasedPlabs.get(0);

   130 

   131         for (int index = 1; index < decreasedPlabs.size(); ++index) {

   131         if (startDesiredPLABSize < endDesiredPLABSize) {

   132             Long current = decreasedPlabs.get(index);

   132             System.out.println(output);

   133             if (prev < current) {

   133             throw new RuntimeException("Test failed! Expect that initial PLAB size should be greater than checked. Initial size: " + startDesiredPLABSize + " Checked size:" + endDesiredPLABSize);

   134                 System.out.println(output);

   134         }

   135                 throw new RuntimeException("Test failed! Expect that previous PLAB size should be greater than current. Prev.size: " + prev + " Current size:" + current);

   135 

   136             }

   136         startDesiredPLABSize = plabSizes.get(testCase.getIterations() * 2);

   137             prev = current;

   137         endDesiredPLABSize = plabSizes.get(testCase.getIterations() * 3 - 1);

   138         }

   138 

   139 

   139         if (startDesiredPLABSize > endDesiredPLABSize) {

   140         prev = increasedPlabs.get(0);

   140             System.out.println(output);

   141         for (int index = 1; index < increasedPlabs.size(); ++index) {

   141             throw new RuntimeException("Test failed! Expect that initial PLAB size should be less than checked. Initial size: " + startDesiredPLABSize + " Checked size:" + endDesiredPLABSize);

   142             Long current = increasedPlabs.get(index);

   143             if (prev > current) {

   144                 System.out.println(output);

   145                 throw new RuntimeException("Test failed! Expect that previous PLAB size should be less than current. Prev.size: " + prev + " Current size:" + current);

   146             }

   147             prev = current;