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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2022/04/22 07:19:00 UTC

[jira] [Created] (IOTDB-2980) [ aligned timeseries performance ] High CPU usage & Low write performance

刘珍 created IOTDB-2980:
-------------------------

             Summary: [ aligned timeseries performance ] High CPU usage & Low write performance
                 Key: IOTDB-2980
                 URL: https://issues.apache.org/jira/browse/IOTDB-2980
             Project: Apache IoTDB
          Issue Type: Bug
          Components: Core/Server
    Affects Versions: 0.14.0-SNAPSHOT
            Reporter: 刘珍
            Assignee: Jialin Qiao
         Attachments: aligned.properties, general.properties, image-2022-04-22-15-12-11-013.png

master_0421_8db8876
问题描述：
在8C32G（fit机器）相同的客户端配置，
对齐throughput(point/s) = 17358854.98，
普通序列throughput(point/s)=18952049.86
对齐慢约9%，且cpu使用率高。
 !image-2022-04-22-15-12-11-013.png! 

测试步骤：
1. 机器信息
iotdb 192.168.130.1   /data1/master_0421_8db8876
bm 192.168.130.2 /data1/benchmark_v13

2. 参数配置
iotdb
MAX_HEAP_SIZE="20G"
MAX_DIRECT_MEMORY_SIZE="6G"
wal_dirs=/data2/wal,/data3/wal

benchmark参数配置见附件

3. 启动测试
监控机器资源，记录测试结果，对比。






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