cc-metric-collector/collectors/memstatMetric.md

memstat collector

  "memstat": {
    "node_stats" : true,
    "numa_stats" : false,
    "exclude_metrics": [
      "mem_used"
    ]
  }

By default, the memstat collector reads data from /proc/meminfo and outputs a handful node metrics. This can be deactivated by the node_stats option.

Additionally, the memstat collector can read the NUMA node specific /sys/devices/system/node/node*/meminfo and output them as memoryDomain metrics. This can be de/activeate with the numa_stats option.

If a metric is not required, it can be excluded from forwarding it to the sink. This includes the metric for system-wide memory stats as well as NUMA node specific memory stats. If you want to filter only specific metrics, use the MetricRouter with something like: name == '<metric_that_should_be_dropped>' && type == 'node' to keep the NUMA node specific <metric_that_should_be_dropped> while dropping the system-wide one.

Metrics:

• mem_total
• mem_sreclaimable
• mem_slab
• mem_free
• mem_buffers
• mem_cached
• mem_available
• mem_shared
• swap_total
• swap_free
• mem_used = mem_total - (mem_free + mem_buffers + mem_cached)