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* Corrected json config in numastatsMetric.md

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* Added some debug output to numastatsMetric.go
This commit is contained in:
Holger Obermaier 2022-11-16 14:10:25 +01:00
parent 9840d0193d
commit e66d52bb32
2 changed files with 30 additions and 17 deletions
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17
collectors/numastatsMetric.go
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@ -14,29 +14,38 @@ import (
lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
)
//
// Numa policy hit/miss statistics
// Non-Uniform Memory Access (NUMA) policy hit/miss statistics
//
// numa_hit:
//
// A process wanted to allocate memory from this node, and succeeded.
//
// numa_miss:
//
// A process wanted to allocate memory from another node,
// but ended up with memory from this node.
//
// numa_foreign:
//
// A process wanted to allocate on this node,
// but ended up with memory from another node.
//
// local_node:
//
// A process ran on this node's CPU,
// and got memory from this node.
//
// other_node:
//
// A process ran on a different node's CPU
// and got memory from this node.
//
// interleave_hit:
//
// Interleaving wanted to allocate from this node
// and succeeded.
//
// See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
//
type NUMAStatsCollectorTopolgy struct {
file string
tagSet map[string]string
@ -82,6 +91,8 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
})
}
// Initialized
cclog.ComponentDebug(m.name, "initialized", len(m.topology), "NUMA domains")
m.init = true
return nil
}

6
collectors/numastatsMetric.md
View File

@ -1,12 +1,14 @@
## `numastat` collector
```json
"numastat": {}
"numastats": {}
```
The `numastat` collector reads data from `/sys/devices/system/node/node*/numastat` and outputs a handful **memoryDomain** metrics. See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
The `numastat` collector reads data from `/sys/devices/system/node/node*/numastat` and outputs a handful **memoryDomain** metrics. See: <https://www.kernel.org/doc/html/latest/admin-guide/numastat.html>
Metrics:
* `numastats_numa_hit`: A process wanted to allocate memory from this node, and succeeded.
* `numastats_numa_miss`: A process wanted to allocate memory from another node, but ended up with memory from this node.
* `numastats_numa_foreign`: A process wanted to allocate on this node, but ended up with memory from another node.