ronyang1985 commented on a change in pull request #8390:
URL: https://github.com/apache/dolphinscheduler/pull/8390#discussion_r806499571
##########
File path:
dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/OSUtils.java
##########
@@ -134,7 +135,11 @@ public static double loadAverage() {
*/
public static double cpuUsage() {
CentralProcessor processor = hal.getProcessor();
- double cpuUsage = processor.getSystemCpuLoad();
+
+ long[] preTicks = processor.getSystemCpuLoadTicks();
+ Util.sleep(1000);
Review comment:
According to the method annotation, getSystemCpuLoadBetweenTicks(long[]
oldTicks)) method returns the "recent cpu usage" for the whole system by
counting ticks between the user-provided value from a previous call. If not
sleeping, it will always return value with 0.0D
```
/**
* Returns the "recent cpu usage" for the whole system by counting ticks
from
* {@link #getSystemCpuLoadTicks()} between the user-provided value from
a
* previous call.
*
* @param oldTicks
* A tick array from a previous call to
* {@link #getSystemCpuLoadTicks()}
* @return CPU load between 0 and 1 (100%)
*/
double getSystemCpuLoadBetweenTicks(long[] oldTicks);
```
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