6f5f3ec34f
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> Upstream-commit: 115f91d7575d6de6c7781a96a082f144fd17e400 Component: engine
The non-reference docs have been moved!
The documentation for Docker Engine has been merged into the general documentation repo.
See the README for instructions on contributing to and building the documentation.
If you'd like to edit the current published version of the Engine docs, do it in the master branch here: https://github.com/docker/docker.github.io/tree/master/engine
If you need to document the functionality of an upcoming Engine release,
use the vnext-engine branch:
https://github.com/docker/docker.github.io/tree/vnext-engine/engine
The reference docs have been left in docker/docker (this repo), which remains the place to edit them.
The docs in the general repo are open-source and we appreciate your feedback and pull requests!