opencontainers/runtime-spec
1
0
Fork 0
mirror of https://github.com/opencontainers/runtime-spec.git synced 2026-02-05 09:45:57 +01:00
Code Issues Wiki Activity

Merge pull request #1076 from Creatone/creatone/mon-support

Browse Source 
config-linux: Add Intel RDT CMT and MBM Linux support
This commit is contained in:
Vincent Batts
2021-09-10 07:50:17 -04:00
committed by GitHub
parent 20a2d97829 cc7f6ec598
commit 0d6cc581ae
3 changed files with 25 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
config-linux.md
View File

@@ -554,6 +554,13 @@ The following rules on parameters MUST be applied:
* If `closID` is set, and neither of `l3CacheSchema` and `memBwSchema` are set, runtime MUST check if corresponding pre-configured directory `closID` is present in mounted `resctrl`. If such pre-configured directory `closID` exists, runtime MUST assign container to this `closID` and [generate an error](runtime.md#errors) if directory does not exist.
* **`enableCMT`** *(boolean, OPTIONAL)* - specifies if Intel RDT CMT should be enabled:
* CMT (Cache Monitoring Technology) supports monitoring of the last-level cache (LLC) occupancy
for the container.
* **`enableMBM`** *(boolean, OPTIONAL)* - specifies if Intel RDT MBM should be enabled:
* MBM (Memory Bandwidth Monitoring) supports monitoring of total and local memory bandwidth
for the container.
### Example

6
schema/config-linux.json
View File

@@ -259,6 +259,12 @@
"memBwSchema": {
"type": "string",
"pattern": "^MB:[^\\n]*$"
},
"enableCMT": {
"type": "boolean"
},
"enableMBM": {
"type": "boolean"
}
}
},

15
specs-go/config.go
View File

@@ -180,7 +180,7 @@ type Linux struct {
// MountLabel specifies the selinux context for the mounts in the container.
MountLabel string `json:"mountLabel,omitempty"`
// IntelRdt contains Intel Resource Director Technology (RDT) information for
// handling resource constraints (e.g., L3 cache, memory bandwidth) for the container
// handling resource constraints and monitoring metrics (e.g., L3 cache, memory bandwidth) for the container
IntelRdt *LinuxIntelRdt `json:"intelRdt,omitempty"`
// Personality contains configuration for the Linux personality syscall
Personality *LinuxPersonality `json:"personality,omitempty"`
@@ -685,8 +685,9 @@ type LinuxSyscall struct {
Args []LinuxSeccompArg `json:"args,omitempty"`
}
// LinuxIntelRdt has container runtime resource constraints for Intel RDT
// CAT and MBA features which introduced in Linux 4.10 and 4.12 kernel
// LinuxIntelRdt has container runtime resource constraints for Intel RDT CAT and MBA
// features and flags enabling Intel RDT CMT and MBM features.
// Intel RDT features are available in Linux 4.14 and newer kernel versions.
type LinuxIntelRdt struct {
// The identity for RDT Class of Service
ClosID string `json:"closID,omitempty"`
@@ -699,6 +700,14 @@ type LinuxIntelRdt struct {
// The unit of memory bandwidth is specified in "percentages" by
// default, and in "MBps" if MBA Software Controller is enabled.
MemBwSchema string `json:"memBwSchema,omitempty"`
// EnableCMT is the flag to indicate if the Intel RDT CMT is enabled. CMT (Cache Monitoring Technology) supports monitoring of
// the last-level cache (LLC) occupancy for the container.
EnableCMT bool `json:"enableCMT,omitempty"`
// EnableMBM is the flag to indicate if the Intel RDT MBM is enabled. MBM (Memory Bandwidth Monitoring) supports monitoring of
// total and local memory bandwidth for the container.
EnableMBM bool `json:"enableMBM,omitempty"`
}
// ZOS contains platform-specific configuration for z/OS based containers.