From f38b03d3752aa2a8fe1172b50b73cd5a33ae14ea Mon Sep 17 00:00:00 2001 From: cdoern Date: Wed, 13 Apr 2022 18:38:02 -0400 Subject: Fix Memory Swappiness passing in Container Clone `DefineCreateFlags` was excluding clone from using the memory-swappiness flag leading the value to be zero when our deafult is -1. Rearrange the if/else to give clone these memory related options resolves #13856 Signed-off-by: cdoern --- docs/source/markdown/podman-container-clone.1.md | 27 ++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'docs') diff --git a/docs/source/markdown/podman-container-clone.1.md b/docs/source/markdown/podman-container-clone.1.md index eaf330373..b654aaa06 100644 --- a/docs/source/markdown/podman-container-clone.1.md +++ b/docs/source/markdown/podman-container-clone.1.md @@ -137,6 +137,33 @@ system's page size (the value would be very large, that's millions of trillions) If no memory limits are specified, the original container's will be used. +#### **--memory-reservation**=*limit* + +Memory soft limit (format: `[]`, where unit = b (bytes), k (kilobytes), m (megabytes), or g (gigabytes)) + +After setting memory reservation, when the system detects memory contention +or low memory, containers are forced to restrict their consumption to their +reservation. So you should always set the value below **--memory**, otherwise the +hard limit will take precedence. By default, memory reservation will be the same +as memory limit from the container being cloned. + +#### **--memory-swap**=*limit* + +A limit value equal to memory plus swap. Must be used with the **-m** +(**--memory**) flag. The swap `LIMIT` should always be larger than **-m** +(**--memory**) value. By default, the swap `LIMIT` will be set to double +the value of --memory if specified. Otherwise, the container being cloned will be used to derive the swap value. + +The format of `LIMIT` is `[]`. Unit can be `b` (bytes), +`k` (kilobytes), `m` (megabytes), or `g` (gigabytes). If you don't specify a +unit, `b` is used. Set LIMIT to `-1` to enable unlimited swap. + +#### **--memory-swappiness**=*number* + +Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. + +This flag is not supported on cgroups V2 systems. + #### **--name** Set a custom name for the cloned container. The default if not specified is of the syntax: **-clone** -- cgit v1.2.3-54-g00ecf