Commit Graph

9 Commits

Author SHA1 Message Date
Artyom Lukianov
d0089db2ec memory manager: remove unused variable under stateCheckpoint 2021-02-09 01:10:01 +02:00
Artyom Lukianov
ff2a110920 memory manager: provide the new type to contain resources for each NUMA node
Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
2021-02-09 01:10:00 +02:00
Artyom Lukianov
aa63e5aed2 memory manager: provide an additional validation for reserved memory
Calculate the total amount of reserved memory only for NUMA nodes
that are existing under the machine.

Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
2021-02-09 01:10:00 +02:00
Pawel Rapacz
18c8a821e0 memory manager: implement GetPodTopologyHints method
It will return memory and hugepages hints for the whole pod.

Signed-off-by: Pawel Rapacz <p.rapacz@partner.samsung.com>
2021-02-09 01:09:59 +02:00
Artyom Lukianov
abb94bec51 memory manager: implement the memory manager static policy
- The `Allocate` method will try to allocate the memory according to the affinity hints
  saved under the `TopologyManager` store. If the store does not have any hints for the memory
  it will call `getDefaultHint` to get the default hint. If the affinity does not satisfy
  the memory request, it will call `extendTopologyManagerHint` to extend the topology hint to
  satisfy the memory request. Once it has the preferred hint, it will allocate the memory and
  update the the memory manager state accordingly.

- The `RemoveContainer` will release the allocated memory and update the memory manager state accordingly.

- The `GetTopologyHints` method will try to re-generate topology hints when the container already presents
  under the memory manager state. If it does not present it will call `calculateHints` to get topology hints.
  The `calculateHints` uses an approach similar to the one used under the CPU manager:
  1. If the container memory request can be satisfied by the single NUMA node, it will not allocate the memory from
     more than one NUMA node and it will set only single NUMA hints as the preferred one.
     It can affect the density, but it gives us guarantees regarding the NUMA alignment.
  2. The NUMA node used in the multi NUMA assignment can not be used in the single NUMA assignment.
     And the NUMA node used in the single NUMA assignment can not be used in the multi NUMA assignment.
  3. Only hints with NUMA node that have enough memory will be returned.

Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
2021-02-09 01:09:59 +02:00
Cezary Zukowski
4a64102918 memory manager: validate reserved-memory against Node Allocatable
Reserved memory of all kinds (and over all
NUMA nodes) must be equal to the values determined
by Node Allocatable feature.

Signed-off-by: Cezary Zukowski <c.zukowski@samsung.com>
2021-02-09 00:54:58 +02:00
Artyom Lukianov
9ae499ae46 memory manager: pass memory manager flags to the container manager
Pass memory manager flags to the container manager and call all relevant memory manager
methods under the container manager.

Signed-off-by: Byonggon Chun <bg.chun@samsung.com>
2021-02-09 00:54:58 +02:00
Artyom Lukianov
95f81372e2 memory manager: implement the manager interface methods
The commit adds implementation for methods:
- Start
- AddContainer
- Allocate
- RemoveContainer
- State
- GetTopologyHints

Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
2021-02-09 00:54:58 +02:00
Artyom Lukianov
4c75be0604 memory manager: provide the skeleton for the memory manager
Provide memory manager struct and methods that should be implemented.

Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
2021-02-09 00:54:58 +02:00