Microkernel Memory Instrumentation
The C_OS implements the microkernel memory instrumentation via the sysctl kern.mkstats.mem node. The OS_GAUGES feature must be set to true.
Instrumentation related to memory use comprises the following measurements:
|
Function |
Instrument Type |
Description |
|---|---|---|
|
physPagesEquiped() |
Attribute |
Measures the amount of physical pages of memory available on the node |
|
physPagesavail() |
Gauge (low threshold) |
Measures the amount of physical pages of memory currently available |
|
allocFailures() |
Counter |
Number of memory allocation failures since boot |
|
pageSize() |
Attribute |
Size in bytes of physical page |
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