[英]JMeter: Perfmon report shows 100% usage of server's CPU but it was only 1.5% on AWS dashboard
I am running a load test for 1 million threads through JMeter and want to view the resource utilization on the server.我正在通过 JMeter 运行 100 万个线程的负载测试,并希望查看服务器上的资源利用率。 For that, I am using Perfmon plugin.
为此,我正在使用 Perfmon 插件。 When the report is generated, it shows 100% usage of CPU but when view my AWS server dashboard, CPU utilization was only 1.5% at the maximum point.
生成报告时,它显示 100% 的 CPU 使用率,但当查看我的 AWS 服务器仪表板时,CPU 使用率最高点仅为 1.5%。
Any Thoughts?有什么想法吗?
I can only think of incorrect configuration of the PerfMon Metrics Collector , given the proper configuration it should be precise enough and capture the CPU usage (as well as other metrics) in the real time我只能想到PerfMon Metrics Collector配置不正确,如果配置正确,它应该足够精确并实时捕获 CPU 使用率(以及其他指标)
Demo:演示:
For the above demo I used s-tui on AWS side, sha1sum to stress the CPU and pretty much default configuration of the PerfMon Metrics Collector对于上面的演示,我在 AWS 端使用了s-tui , sha1sum来强调 CPU 和 PerfMon Metrics Collector 的几乎默认配置
More information just in case: How to Monitor Your Server Health & Performance During a JMeter Load Test更多信息以防万一: How to Monitor Your Server Health & Performance During a JMeter Load Test
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