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Add Linux NUMA "numastat" metrics (#249)

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* Add Linux NUMA "numastat" metrics
  Read the `numastat` metrics from /sys/devices/system/node/node* when reading NUMA meminfo metrics.
* Update end-to-end test output.
* Add `numastat` metrics as counters.
* Add tests for error conditions.
* Refactor meminfo numa metrics struct
* Refactor meminfoKey into a simple struct of metric data.
  This makes it easier to pass slices of metrics around.
* Refactor tests.
* Fixup: Add suggested fixes.
* Fixup:  More fixes
* Add another scanner.Err() return
* Add "_total" to counter metrics.
This commit is contained in:
Ben Kochie 2016-10-12 13:07:49 +02:00 • committed by Tobias Schmidt
commit c6162312f2
5 changed files with 158 additions and 26 deletions
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24
collector/fixtures/e2e-output.txt
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@ -1011,6 +1011,30 @@ node_memory_numa_Writeback{node="1"} 0
# TYPE node_memory_numa_WritebackTmp gauge
node_memory_numa_WritebackTmp{node="0"} 0
node_memory_numa_WritebackTmp{node="1"} 0
# HELP node_memory_numa_interleave_hit_total Memory information field interleave_hit_total.
# TYPE node_memory_numa_interleave_hit_total counter
node_memory_numa_interleave_hit_total{node="0"} 57146
node_memory_numa_interleave_hit_total{node="1"} 57286
# HELP node_memory_numa_local_node_total Memory information field local_node_total.
# TYPE node_memory_numa_local_node_total counter
node_memory_numa_local_node_total{node="0"} 1.93454780853e+11
node_memory_numa_local_node_total{node="1"} 3.2671904655e+11
# HELP node_memory_numa_numa_foreign_total Memory information field numa_foreign_total.
# TYPE node_memory_numa_numa_foreign_total counter
node_memory_numa_numa_foreign_total{node="0"} 5.98586233e+10
node_memory_numa_numa_foreign_total{node="1"} 1.2624528e+07
# HELP node_memory_numa_numa_hit_total Memory information field numa_hit_total.
# TYPE node_memory_numa_numa_hit_total counter
node_memory_numa_numa_hit_total{node="0"} 1.93460335812e+11
node_memory_numa_numa_hit_total{node="1"} 3.26720946761e+11
# HELP node_memory_numa_numa_miss_total Memory information field numa_miss_total.
# TYPE node_memory_numa_numa_miss_total counter
node_memory_numa_numa_miss_total{node="0"} 1.2624528e+07
node_memory_numa_numa_miss_total{node="1"} 5.9858626709e+10
# HELP node_memory_numa_other_node_total Memory information field other_node_total.
# TYPE node_memory_numa_other_node_total counter
node_memory_numa_other_node_total{node="0"} 1.8179487e+07
node_memory_numa_other_node_total{node="1"} 5.986052692e+10
# HELP node_net_bonding_slaves Number of configured slaves per bonding interface.
# TYPE node_net_bonding_slaves gauge
node_net_bonding_slaves{master="bond0"} 0