Performance Sampling Command
The performance sampling function can detect the time consumption of various parts of the Dubbo processing link. When a timeout occurs,
( usageTime / timeout > profilerWarnPercent * 100 ) records the time consumption of calls through logs.
This function is divided into
simple profiler and
detail profiler two modes, where
simple profiler mode is enabled by default, and
detail profiler mode is disabled by default.
Compared with the
simple profiler mode, the
detail profiler collects more time-consuming processing of each filter, specific time-consuming protocols, etc.
simple profiler mode, if you find that there is a long time-consuming situation inside the Dubbo framework, you can enable the
detail profiler mode to better troubleshoot the problem.
Reference link: Request time-consuming sampling
simple profiler mode, enabled by default
dubbo>enableSimpleProfiler OK dubbo>
Turn off the
simple profiler mode, and the
detail profiler will not be enabled after it is turned off
dubbo>disableSimpleProfiler OK dubbo>
detail profiler mode, which is disabled by default, you need to enable the
simple profiler mode to actually enable it
dubbo>enableDetailProfiler OK. This will cause performance degradation, please be careful! dubbo>
detail profiler mode, it will not affect
dubbo>disableDetailProfiler OK dubbo>
Set the warning percentage for the timeout
profilerWarnPercent: The warning percentage of the timeout period, the value range is 0.0 ~ 1.0, and the default value is 0.75
dubbo>setProfilerWarnPercent 0.75 OK dubbo>