zishuo/runc
1
0
Fork 0
mirror of https://github.com/opencontainers/runc.git synced 2025-10-31 02:56:25 +08:00
Code Issues Packages Projects Releases Wiki Activity

fs2: fallback to setting io.weight if io.bfq.weight

Browse Source 
if bfq is not loaded, then io.bfq.weight is not available. io.weight
should always be available and is the next best equivalent thing.

Signed-off-by: Daniel Dao <dqminh89@gmail.com>
This commit is contained in:
Daniel Dao
2021-02-24 13:18:00 +00:00
parent c153261830
commit 8c7ece1e6d
4 changed files with 40 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
libcontainer/cgroups/utils.go
View File

@@ -439,3 +439,14 @@ func ConvertMemorySwapToCgroupV2Value(memorySwap, memory int64) (int64, error) {
return memorySwap - memory, nil
}
// Since the OCI spec is designed for cgroup v1, in some cases
// there is need to convert from the cgroup v1 configuration to cgroup v2
// the formula for BlkIOWeight to IOWeight is y = (1 + (x - 10) * 9999 / 990)
// convert linearly from [10-1000] to [1-10000]
func ConvertBlkIOToIOWeightValue(blkIoWeight uint16) uint64 {
if blkIoWeight == 0 {
return 0
}
return uint64(1 + (uint64(blkIoWeight)-10)*9999/990)
}