https://github.com/brettwooldridge/HikariCP
JMH Benchmarks
Microbenchmarks were created to isolate and measure the overhead of pools using the JMH microbenchmark framework. You can checkout the HikariCP benchmark project for details and review/run the benchmarks yourself.
- One Connection Cycle is defined as single
DataSource.getConnection()/Connection.close(). - One Statement Cycle is defined as single
Connection.prepareStatement(),Statement.execute(),Statement.close().
1 Versions: HikariCP 2.6.0, commons-dbcp2 2.1.1, Tomcat 8.0.24, Vibur 16.1, c3p0 0.9.5.2, Java 8u111
2 Intel Core i7-3770 CPU @ 3.40GHz
3 Uncontended benchmark: 32 threads/32 connections, Contended benchmark: 32 threads, 16 connections
4 Apache Tomcat fails to complete the Statement benchmark when the Tomcat StatementFinalizer is used due to excessive garbage collection times
5 Apache DBCP fails to complete the Statement benchmark due to excessive garbage collection times