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Correspondence between influxdb runtime measurement statistics and Resident Memory (RES)

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Feb 06, 2024 am 10:42 AM

influxdb运行时测量统计与Resident Memory(RES)的对应关系

Question content

Version: 1.8.10
Operating system: CentOS 7
question
- According to the documentation, the "Sys" of the _internal database is: the total number of bytes of memory obtained from the OS. Measures the virtual address space reserved by the Go runtime for the heap, stack, and other internal data structures.
- But "Sys" or other statistics are not equal to resident memory (RES) (PID 9450 or below)
- What is the relationship between runtime statistics and RES
Runtime
RES-infuxd

Understanding the infuxdb runtime

Correct answer

"Sys" refers to VIRT not RES. We can use cmd "pmap -x 9450 | less" to view the RES

of the influxd process

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