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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
View File

@ -14,29 +14,38 @@ import (
lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric" lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
) )
// // Non-Uniform Memory Access (NUMA) policy hit/miss statistics
// Numa policy hit/miss statistics
// //
// numa_hit: // numa_hit:
//
// A process wanted to allocate memory from this node, and succeeded. // A process wanted to allocate memory from this node, and succeeded.
//
// numa_miss: // numa_miss:
//
// A process wanted to allocate memory from another node, // A process wanted to allocate memory from another node,
// but ended up with memory from this node. // but ended up with memory from this node.
//
// numa_foreign: // numa_foreign:
//
// A process wanted to allocate on this node, // A process wanted to allocate on this node,
// but ended up with memory from another node. // but ended up with memory from another node.
//
// local_node: // local_node:
//
// A process ran on this node's CPU, // A process ran on this node's CPU,
// and got memory from this node. // and got memory from this node.
//
// other_node: // other_node:
//
// A process ran on a different node's CPU // A process ran on a different node's CPU
// and got memory from this node. // and got memory from this node.
//
// interleave_hit: // interleave_hit:
//
// Interleaving wanted to allocate from this node // Interleaving wanted to allocate from this node
// and succeeded. // and succeeded.
// //
// See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html // See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
//
type NUMAStatsCollectorTopolgy struct { type NUMAStatsCollectorTopolgy struct {
file string file string
tagSet map[string]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 m.init = true
return nil return nil
} }

6
collectors/numastatsMetric.md
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@ -1,12 +1,14 @@
## `numastat` collector ## `numastat` collector
```json ```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: Metrics:
* `numastats_numa_hit`: A process wanted to allocate memory from this node, and succeeded. * `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_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. * `numastats_numa_foreign`: A process wanted to allocate on this node, but ended up with memory from another node.