sahildevgon commented on code in PR #60777:
URL: https://github.com/apache/doris/pull/60777#discussion_r2945867750
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fe/fe-core/src/main/java/org/apache/doris/metric/SystemMetrics.java:
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@@ -54,10 +56,72 @@ public class SystemMetrics {
protected long buffers = 0;
// Memory in the pagecache (Diskcache and Shared Memory)
protected long cached = 0;
+ // CPU time metrics (in USER_HZ, typically 1/100th of a second)
+ // Time spent in user mode
+ protected long cpuUser = 0;
+ // Time spent in user mode with low priority (nice)
+ protected long cpuNice = 0;
+ // Time spent in system/kernel mode
+ protected long cpuSystem = 0;
+ // Time spent idle
+ protected long cpuIdle = 0;
+ // Time waiting for I/O to complete
+ protected long cpuIowait = 0;
+ // Time servicing hardware interrupts
+ protected long cpuIrq = 0;
+ // Time servicing software interrupts
+ protected long cpuSoftirq = 0;
+ // Time stolen by hypervisor (for VMs)
+ protected long cpuSteal = 0;
+ // Time spent running virtual CPU for guest OS
+ protected long cpuGuest = 0;
+ // Time spent running niced guest
+ protected long cpuGuestNice = 0;
+
+ // Package-private: allows tests to override the /proc/stat resource path
+ String cpuStatTestFile = "data/stat_normal";
+
Review Comment:
added a protected method for path(Overridable in tests)
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