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4 commits

Author SHA1 Message Date
Daniel Nephin
4f0d95fa6e Add canonical import comment
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2018-02-05 16:51:57 -05:00
Sebastiaan van Stijn
6ed1163c98
Remove redundant build-tags
Files that are suffixed with `_linux.go` or `_windows.go` are
already only built on Linux / Windows, so these build-tags
were redundant.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2017-12-18 17:41:53 +01:00
Ian Campbell
115f91d757 Correct CPU usage calculation in presence of offline CPUs and newer Linux
In https://github.com/torvalds/linux/commit/5ca3726 (released in v4.7-rc1) the
content of the `cpuacct.usage_percpu` file in sysfs was changed to include both
online and offline cpus. This broke the arithmetic in the stats helpers used by
`docker stats`, since it was using the length of the PerCPUUsage array as a
proxy for the number of online CPUs.

Add current number of online CPUs to types.StatsJSON and use it in the
calculation.

Keep a fallback to `len(v.CPUStats.CPUUsage.PercpuUsage)` so this code
continues to work when talking to an older daemon. An old client talking to a
new daemon will ignore the new field and behave as before.

Fixes #28941.

Signed-off-by: Ian Campbell <ian.campbell@docker.com>
2017-03-10 10:24:33 +00:00
Vincent Demeester
835971c6fd
Extract daemon statsCollector to its own package
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2017-01-04 18:18:30 +01:00
Renamed from daemon/stats_collector_windows.go (Browse further)