Ian Campbell 9b001c4f5f 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>
(cherry picked from commit 115f91d757)
Signed-off-by: Victor Vieux <victorvieux@gmail.com>

2017-03-13 16:16:05 -07:00

..

attach.go

context.Context should be the first parameter of a function

2016-11-22 18:43:29 -08:00

cmd.go

refactor help func in CLI

2016-11-18 13:30:44 -08:00

commit.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

cp.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

create.go

Support for docker content trust for plugins

2016-12-27 14:27:28 -08:00

diff.go

Merge pull request #29603 from mstanleyjones/docker_diff_improvements

2017-02-22 00:46:02 +01:00

exec_test.go

Remove redundant parameter and fix typos

2016-11-10 11:05:31 +08:00

exec.go

fix incorrect ErrConnectFailed comparison

2016-11-22 11:23:49 -08:00

export.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

hijack.go

Move image trust related cli methods into the image package.

2016-09-09 10:50:16 -04:00

inspect.go

Fix typs from go to Go

2016-10-18 19:40:16 +08:00

kill.go

Support parallel kill

2016-09-28 12:03:19 +08:00

list.go

Fix failure in docker ps --format when .Label has args

2017-01-24 17:45:05 -08:00

logs.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

pause.go

Add parallel operation support for pause/unpause

2016-09-13 11:01:28 +08:00

port.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

prune.go

Convert DanglingOnly to Filters for docker image prune

2016-12-07 16:08:18 -08:00

ps_test.go

Use map[string]bool for preProcessor to ignore unknwon field

2016-11-18 13:42:21 -08:00

rename.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

restart.go

Update docker stop and docker restart to allow not specifying timeout and use the one specified at container creation time.

2016-10-17 12:53:35 -07:00

rm.go

Support parallel rm

2016-09-28 12:07:18 +08:00

run.go

[17.03.x] fix autoremove on pre 1.25 API

2017-03-09 11:59:11 +01:00

start.go

context.Context should be the first parameter of a function

2016-11-22 18:43:29 -08:00

stats_helpers.go

Correct CPU usage calculation in presence of offline CPUs and newer Linux

2017-03-13 16:16:05 -07:00

stats_unit_test.go

Update function name for TestCalculBlockIO

2016-11-09 17:43:10 +08:00

stats.go

context.Context should be the first parameter of a function

2016-11-22 18:43:29 -08:00

stop.go

Update docker stop and docker restart to allow not specifying timeout and use the one specified at container creation time.

2016-10-17 12:53:35 -07:00

top.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00

tty.go

Windows: OCI process struct convergence

2016-09-19 10:34:31 -07:00

unpause.go

Add parallel operation support for pause/unpause

2016-09-13 11:01:28 +08:00

update.go

Fixes #27798 : Update help for --blkio-weight parameter

2016-11-03 06:42:15 +00:00

utils.go

context.Context should be the first parameter of a function

2016-11-22 18:43:29 -08:00

wait.go

Move api/client -> cli/command

2016-09-08 15:46:29 -04:00