# JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd # Parameters: (impl = ArrayList, size = 1000) # Run progress: 0.00% complete, ETA 00:01:40 # Fork: 1 of 1 # Warmup Iteration 1: 162114.256 ops/ms # Warmup Iteration 2: 163227.532 ops/ms Iteration 1: 174081.389 ops/ms Iteration 2: 181016.166 ops/ms Iteration 3: 178653.294 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd": 177916.950 ±(99.9%) 64318.989 ops/ms [Average] (min, avg, max) = (174081.389, 177916.950, 181016.166), stdev = 3525.541 CI (99.9%): [113597.961, 242235.939] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd # Parameters: (impl = ArrayList, size = 100000) # Run progress: 5.00% complete, ETA 00:01:43 # Fork: 1 of 1 # Warmup Iteration 1: 85814.984 ops/ms # Warmup Iteration 2: 77594.269 ops/ms Iteration 1: 84356.568 ops/ms Iteration 2: 83619.315 ops/ms Iteration 3: 72410.302 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd": 80128.728 ±(99.9%) 122132.789 ops/ms [Average] (min, avg, max) = (72410.302, 80128.728, 84356.568), stdev = 6694.510 CI (99.9%): [≈ 0, 202261.517] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd # Parameters: (impl = LinkedList, size = 1000) # Run progress: 10.00% complete, ETA 00:01:37 # Fork: 1 of 1 # Warmup Iteration 1: 74571.629 ops/ms # Warmup Iteration 2: 42845.531 ops/ms Iteration 1: 44822.469 ops/ms Iteration 2: 46759.673 ops/ms Iteration 3: 47030.988 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd": 46204.377 ±(99.9%) 21973.304 ops/ms [Average] (min, avg, max) = (44822.469, 46204.377, 47030.988), stdev = 1204.431 CI (99.9%): [24231.073, 68177.680] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd # Parameters: (impl = LinkedList, size = 100000) # Run progress: 15.00% complete, ETA 00:01:32 # Fork: 1 of 1 # Warmup Iteration 1: 82182.548 ops/ms # Warmup Iteration 2: 48790.149 ops/ms Iteration 1: 41766.671 ops/ms Iteration 2: 42867.682 ops/ms Iteration 3: 38072.881 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addEnd": 40902.411 ±(99.9%) 45819.499 ops/ms [Average] (min, avg, max) = (38072.881, 40902.411, 42867.682), stdev = 2511.521 CI (99.9%): [≈ 0, 86721.910] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addFront # Parameters: (impl = ArrayList, size = 1000) # Run progress: 20.00% complete, ETA 00:01:26 # Fork: 1 of 1 # Warmup Iteration 1: 5358.049 ops/ms # Warmup Iteration 2: 5705.109 ops/ms Iteration 1: 6860.775 ops/ms Iteration 2: 7014.548 ops/ms Iteration 3: 5879.974 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addFront": 6585.099 ±(99.9%) 11228.597 ops/ms [Average] (min, avg, max) = (5879.974, 6585.099, 7014.548), stdev = 615.477 CI (99.9%): [≈ 0, 17813.697] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addFront # Parameters: (impl = ArrayList, size = 100000) # Run progress: 25.00% complete, ETA 00:01:21 # Fork: 1 of 1 # Warmup Iteration 1: 35.381 ops/ms # Warmup Iteration 2: 45.342 ops/ms Iteration 1: 53.127 ops/ms Iteration 2: 53.514 ops/ms Iteration 3: 53.857 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addFront": 53.499 ±(99.9%) 6.659 ops/ms [Average] (min, avg, max) = (53.127, 53.499, 53.857), stdev = 0.365 CI (99.9%): [46.840, 60.158] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addFront # Parameters: (impl = LinkedList, size = 1000) # Run progress: 30.00% complete, ETA 00:01:16 # Fork: 1 of 1 # Warmup Iteration 1: 79349.690 ops/ms # Warmup Iteration 2: 46393.515 ops/ms Iteration 1: 42718.334 ops/ms Iteration 2: 41957.209 ops/ms Iteration 3: 44017.076 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addFront": 42897.540 ±(99.9%) 19001.947 ops/ms [Average] (min, avg, max) = (41957.209, 42897.540, 44017.076), stdev = 1041.561 CI (99.9%): [23895.592, 61899.487] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addFront # Parameters: (impl = LinkedList, size = 100000) # Run progress: 35.00% complete, ETA 00:01:11 # Fork: 1 of 1 # Warmup Iteration 1: 23976.443 ops/ms # Warmup Iteration 2: 30056.587 ops/ms Iteration 1: 44990.603 ops/ms Iteration 2: 44365.967 ops/ms Iteration 3: 40586.360 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addFront": 43314.310 ±(99.9%) 43475.313 ops/ms [Average] (min, avg, max) = (40586.360, 43314.310, 44990.603), stdev = 2383.029 CI (99.9%): [≈ 0, 86789.623] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle # Parameters: (impl = ArrayList, size = 1000) # Run progress: 40.00% complete, ETA 00:01:05 # Fork: 1 of 1 # Warmup Iteration 1: 16685.105 ops/ms # Warmup Iteration 2: 15174.527 ops/ms Iteration 1: 15288.973 ops/ms Iteration 2: 13588.771 ops/ms Iteration 3: 14183.387 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle": 14353.710 ±(99.9%) 15740.742 ops/ms [Average] (min, avg, max) = (13588.771, 14353.710, 15288.973), stdev = 862.803 CI (99.9%): [≈ 0, 30094.453] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle # Parameters: (impl = ArrayList, size = 100000) # Run progress: 45.00% complete, ETA 00:00:59 # Fork: 1 of 1 # Warmup Iteration 1: 66.502 ops/ms # Warmup Iteration 2: 108.785 ops/ms Iteration 1: 127.539 ops/ms Iteration 2: 124.636 ops/ms Iteration 3: 124.909 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle": 125.695 ±(99.9%) 29.247 ops/ms [Average] (min, avg, max) = (124.636, 125.695, 127.539), stdev = 1.603 CI (99.9%): [96.447, 154.942] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle # Parameters: (impl = LinkedList, size = 1000) # Run progress: 50.00% complete, ETA 00:00:54 # Fork: 1 of 1 # Warmup Iteration 1: 536.060 ops/ms # Warmup Iteration 2: 606.294 ops/ms Iteration 1: 605.980 ops/ms Iteration 2: 605.421 ops/ms Iteration 3: 614.996 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle": 608.799 ±(99.9%) 98.048 ops/ms [Average] (min, avg, max) = (605.421, 608.799, 614.996), stdev = 5.374 CI (99.9%): [510.751, 706.847] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle # Parameters: (impl = LinkedList, size = 100000) # Run progress: 55.00% complete, ETA 00:00:49 # Fork: 1 of 1 # Warmup Iteration 1: 4.930 ops/ms # Warmup Iteration 2: 4.993 ops/ms Iteration 1: 5.047 ops/ms Iteration 2: 5.149 ops/ms Iteration 3: 5.061 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.addMiddle": 5.086 ±(99.9%) 1.014 ops/ms [Average] (min, avg, max) = (5.047, 5.086, 5.149), stdev = 0.056 CI (99.9%): [4.072, 6.100] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom # Parameters: (impl = ArrayList, size = 1000) # Run progress: 60.00% complete, ETA 00:00:43 # Fork: 1 of 1 # Warmup Iteration 1: 72989.593 ops/ms # Warmup Iteration 2: 73568.287 ops/ms Iteration 1: 74557.252 ops/ms Iteration 2: 76233.965 ops/ms Iteration 3: 75917.857 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom": 75569.691 ±(99.9%) 16253.874 ops/ms [Average] (min, avg, max) = (74557.252, 75569.691, 76233.965), stdev = 890.930 CI (99.9%): [59315.818, 91823.565] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom # Parameters: (impl = ArrayList, size = 100000) # Run progress: 65.00% complete, ETA 00:00:37 # Fork: 1 of 1 # Warmup Iteration 1: 39087.453 ops/ms # Warmup Iteration 2: 42258.929 ops/ms Iteration 1: 41705.407 ops/ms Iteration 2: 37824.238 ops/ms Iteration 3: 41843.150 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom": 40457.598 ±(99.9%) 41624.817 ops/ms [Average] (min, avg, max) = (37824.238, 40457.598, 41843.150), stdev = 2281.597 CI (99.9%): [≈ 0, 82082.415] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom # Parameters: (impl = LinkedList, size = 1000) # Run progress: 70.00% complete, ETA 00:00:32 # Fork: 1 of 1 # Warmup Iteration 1: 2573.620 ops/ms # Warmup Iteration 2: 2593.939 ops/ms Iteration 1: 2578.054 ops/ms Iteration 2: 1819.430 ops/ms Iteration 3: 2350.190 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom": 2249.225 ±(99.9%) 7101.544 ops/ms [Average] (min, avg, max) = (1819.430, 2249.225, 2578.054), stdev = 389.260 CI (99.9%): [≈ 0, 9350.769] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom # Parameters: (impl = LinkedList, size = 100000) # Run progress: 75.00% complete, ETA 00:00:26 # Fork: 1 of 1 # Warmup Iteration 1: 19.457 ops/ms # Warmup Iteration 2: 19.681 ops/ms Iteration 1: 19.396 ops/ms Iteration 2: 19.827 ops/ms Iteration 3: 18.270 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.getRandom": 19.165 ±(99.9%) 14.662 ops/ms [Average] (min, avg, max) = (18.270, 19.165, 19.827), stdev = 0.804 CI (99.9%): [4.503, 33.826] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum # Parameters: (impl = ArrayList, size = 1000) # Run progress: 80.00% complete, ETA 00:00:21 # Fork: 1 of 1 # Warmup Iteration 1: 2001.245 ops/ms # Warmup Iteration 2: 1969.018 ops/ms Iteration 1: 1869.923 ops/ms Iteration 2: 1798.606 ops/ms Iteration 3: 1915.867 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum": 1861.466 ±(99.9%) 1077.953 ops/ms [Average] (min, avg, max) = (1798.606, 1861.466, 1915.867), stdev = 59.086 CI (99.9%): [783.513, 2939.418] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum # Parameters: (impl = ArrayList, size = 100000) # Run progress: 85.00% complete, ETA 00:00:16 # Fork: 1 of 1 # Warmup Iteration 1: 13.767 ops/ms # Warmup Iteration 2: 14.572 ops/ms Iteration 1: 14.687 ops/ms Iteration 2: 13.892 ops/ms Iteration 3: 12.981 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum": 13.853 ±(99.9%) 15.571 ops/ms [Average] (min, avg, max) = (12.981, 13.853, 14.687), stdev = 0.854 CI (99.9%): [≈ 0, 29.425] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum # Parameters: (impl = LinkedList, size = 1000) # Run progress: 90.00% complete, ETA 00:00:10 # Fork: 1 of 1 # Warmup Iteration 1: 515.059 ops/ms # Warmup Iteration 2: 563.552 ops/ms Iteration 1: 535.605 ops/ms Iteration 2: 561.710 ops/ms Iteration 3: 561.907 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum": 553.074 ±(99.9%) 276.013 ops/ms [Average] (min, avg, max) = (535.605, 553.074, 561.907), stdev = 15.129 CI (99.9%): [277.061, 829.088] (assumes normal distribution) # JMH version: 1.37 # VM version: JDK 25.0.4.1, OpenJDK 64-Bit Server VM, 25.0.4.1+1-LTS # VM invoker: /tmp/tools/jdk-25.0.4.1+1/bin/java # Blackhole mode: compiler (auto-detected, use -Djmh.blackhole.autoDetect=false to disable) # Warmup: 2 iterations, 1 s each # Measurement: 3 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time # Benchmark: com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum # Parameters: (impl = LinkedList, size = 100000) # Run progress: 95.00% complete, ETA 00:00:05 # Fork: 1 of 1 # Warmup Iteration 1: 2.898 ops/ms # Warmup Iteration 2: 2.928 ops/ms Iteration 1: 2.959 ops/ms Iteration 2: 2.940 ops/ms Iteration 3: 2.979 ops/ms Result "com.ankurm.listbenchmarks.ListOpsBenchmark.iterateSum": 2.959 ±(99.9%) 0.351 ops/ms [Average] (min, avg, max) = (2.940, 2.959, 2.979), stdev = 0.019 CI (99.9%): [2.608, 3.310] (assumes normal distribution) # Run complete. Total time: 00:01:47 REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial experiments, perform baseline and negative tests that provide experimental control, make sure the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts. Do not assume the numbers tell you what you want them to tell. NOTE: Current JVM experimentally supports Compiler Blackholes, and they are in use. Please exercise extra caution when trusting the results, look into the generated code to check the benchmark still works, and factor in a small probability of new VM bugs. Additionally, while comparisons between different JVMs are already problematic, the performance difference caused by different Blackhole modes can be very significant. Please make sure you use the consistent Blackhole mode for comparisons. Benchmark (impl) (size) Mode Cnt Score Error Units ListOpsBenchmark.addEnd ArrayList 1000 thrpt 3 177916.950 ± 64318.989 ops/ms ListOpsBenchmark.addEnd ArrayList 100000 thrpt 3 80128.728 ± 122132.789 ops/ms ListOpsBenchmark.addEnd LinkedList 1000 thrpt 3 46204.377 ± 21973.304 ops/ms ListOpsBenchmark.addEnd LinkedList 100000 thrpt 3 40902.411 ± 45819.499 ops/ms ListOpsBenchmark.addFront ArrayList 1000 thrpt 3 6585.099 ± 11228.597 ops/ms ListOpsBenchmark.addFront ArrayList 100000 thrpt 3 53.499 ± 6.659 ops/ms ListOpsBenchmark.addFront LinkedList 1000 thrpt 3 42897.540 ± 19001.947 ops/ms ListOpsBenchmark.addFront LinkedList 100000 thrpt 3 43314.310 ± 43475.313 ops/ms ListOpsBenchmark.addMiddle ArrayList 1000 thrpt 3 14353.710 ± 15740.742 ops/ms ListOpsBenchmark.addMiddle ArrayList 100000 thrpt 3 125.695 ± 29.247 ops/ms ListOpsBenchmark.addMiddle LinkedList 1000 thrpt 3 608.799 ± 98.048 ops/ms ListOpsBenchmark.addMiddle LinkedList 100000 thrpt 3 5.086 ± 1.014 ops/ms ListOpsBenchmark.getRandom ArrayList 1000 thrpt 3 75569.691 ± 16253.874 ops/ms ListOpsBenchmark.getRandom ArrayList 100000 thrpt 3 40457.598 ± 41624.817 ops/ms ListOpsBenchmark.getRandom LinkedList 1000 thrpt 3 2249.225 ± 7101.544 ops/ms ListOpsBenchmark.getRandom LinkedList 100000 thrpt 3 19.165 ± 14.662 ops/ms ListOpsBenchmark.iterateSum ArrayList 1000 thrpt 3 1861.466 ± 1077.953 ops/ms ListOpsBenchmark.iterateSum ArrayList 100000 thrpt 3 13.853 ± 15.571 ops/ms ListOpsBenchmark.iterateSum LinkedList 1000 thrpt 3 553.074 ± 276.013 ops/ms ListOpsBenchmark.iterateSum LinkedList 100000 thrpt 3 2.959 ± 0.351 ops/ms