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cpu: Add a 2nd label 'package' to metric node_cpu_core_throttles_total (#871)

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* cpu: Add a 2nd label 'package' to metric node_cpu_core_throttles_total

This commit fixes the node_cpu_core_throttles_total metrics on
multi-socket systems as the core_ids are the same for each package.
I.e. we need to count them seperately.

Rename the node_package_throttles_total metric label `node` to `package`.

Reorganize the sys.ttar archive and use the same symlinks as the Linux
kernel. Also, the new fixtures now use a dual-socket dual-core cpu w/o
HT/SMT (node0: cpu0+1, node1: cpu2+3) as well as processor-less
(memory-only) NUMA node 'node2' (this is a very rare case).

Signed-off-by: Karsten Weiss <knweiss@gmail.com>

* cpu: Use the direct /sys path to the cpu files.

Use the direct path /sys/devices/system/cpu/cpu[0-9]* (without symlinks)
instead of /sys/bus/cpu/devices/cpu[0-9]*.

The latter path also does not exist e.g. on RHEL 6.9's kernel.

Signed-off-by: Karsten Weiss <knweiss@gmail.com>

* cpu: Reverse core+package throttle processing order

Signed-off-by: Karsten Weiss <knweiss@gmail.com>

* cpu: Add documentation URLs

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
This commit is contained in:
Karsten Weiss 2018-04-09 18:01:52 +02:00 • committed by Johannes 'fish' Ziemke
commit efc1fdb6d0
4 changed files with 384 additions and 232 deletions
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6
CHANGELOG.md
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@ -2,10 +2,14 @@
**Breaking changes**
This release contains more breaking changes:
* Rename label `node` of metric `node_cpu_package_throttles_total` to `package`.
* Add 2nd label `package` to metric `node_cpu_core_throttles_total`.
* [CHANGE]
* [FEATURE]
* [ENHANCEMENT]
* [BUGFIX]
* [BUGFIX] Count core throttles per core and per package #871
## 0.16.0-rc.1 / 2018-04-04