[GitHub] [shardingsphere] TeslaCN opened a new issue #13274: Potentially concurrent performance issue in DriverExecutionPrepareEngine

Mon, 25 Oct 2021 20:36:12 -0700 


TeslaCN opened a new issue #13274:
URL: https://github.com/apache/shardingsphere/issues/13274


   ## Performance 
   
   
https://github.com/apache/shardingsphere/blob/3b840b339ac580a7247b866f5904c514b169065f/shardingsphere-infra/shardingsphere-infra-executor/src/main/java/org/apache/shardingsphere/infra/executor/sql/prepare/driver/DriverExecutionPrepareEngine.java#L65
   
   
![image](https://user-images.githubusercontent.com/20503072/138804422-c64c7295-5ed5-4bf7-a8f5-578f869a4776.png)
   
   Testing ShardingSphere Proxy with single node openGauss by benchmarkSQL with 
1000 warehouses and 350 terminals.
   
   Using `async-profiler` profiles the JVM:
   ```bash
   ./profiler.sh -e lock --lock 1ms -d 120 -o jfr -f proxy_og_$(date +%s).jfr 
$(jps | grep Bootstrap | awk '{print $1}')
   ```


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