buffer-slayer 是一個把請求在內(nèi)存中 buffer 并批量發(fā)送的工具，適用于批量能顯著提升性能的組件（redis-client、jdbc), 支持一對一的回調(diào)。

快速啟動

  
  
   
    io.bufferslayer
   
  
   
    buffer-spring-jdbc
   
  
   
    1.1.0
   

  

ReporterProperties reporterProperties = new ReporterProperties()
        .setBufferedMaxMessages(500)
        .setPendingMaxMessages(10000)
        .setMetrics("inmemory")
        .setMetricsExporter("http")
        .setParallelismPerBatch(5)
        .setSenderExecutor(new ThreadPoolExecutor(200,
            200, 0, TimeUnit.MILLISECONDS, new SynchronousQueue()));

BatchedJdbcTemplate template = new BatchedJdbcTemplate(reporterProperties);
template.setDataSource(dataSource);

Promise promise = template.update(...);
promise.done(success -> ...)
       .fail(reject -> ...);

吞吐量對比

Benchmark                                                      Mode  Cnt       Score  Units
BatchedJdbcTemplateBenchmark.high_contention_batched          thrpt   15    8709.042  ops/s
BatchedJdbcTemplateBenchmark.high_contention_unbatched        thrpt   15     271.529  ops/s
BatchedJdbcTemplateBenchmark.mild_contention_batched          thrpt   15    2146.595  ops/s
BatchedJdbcTemplateBenchmark.mild_contention_unbatched        thrpt   15     262.621  ops/s
BatchedJdbcTemplateBenchmark.no_contention_batched            thrpt   15    1194.852  ops/s
BatchedJdbcTemplateBenchmark.no_contention_unbatched          thrpt   15     201.806  ops/s