| ================================================================================================ |
| OpenHashMap vs java.util.HashMap |
| ================================================================================================ |
| |
| OpenJDK 64-Bit Server VM 17.0.20+8-LTS on Linux 6.17.0-1020-azure |
| AMD EPYC 7763 64-Core Processor |
| Insert 1000000 distinct String keys: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative |
| ------------------------------------------------------------------------------------------------------------------------ |
| OpenHashMap 228 243 13 4.4 227.9 1.0X |
| java.util.HashMap 50 88 53 20.1 49.8 4.6X |
| |
| OpenJDK 64-Bit Server VM 17.0.20+8-LTS on Linux 6.17.0-1020-azure |
| AMD EPYC 7763 64-Core Processor |
| Aggregate 5000000 ops on 1000000 String keys: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative |
| ---------------------------------------------------------------------------------------------------------------------------- |
| OpenHashMap changeValue 772 778 7 6.5 154.3 1.0X |
| java.util.HashMap merge 740 763 37 6.8 148.1 1.0X |
| |
| OpenJDK 64-Bit Server VM 17.0.20+8-LTS on Linux 6.17.0-1020-azure |
| AMD EPYC 7763 64-Core Processor |
| Look up 1000000 String keys in random order: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative |
| --------------------------------------------------------------------------------------------------------------------------- |
| OpenHashMap 109 111 2 9.2 108.5 1.0X |
| java.util.HashMap 52 54 1 19.1 52.3 2.1X |
| |
| |
