Feature #36663
mds: adjust cache memory limit automatically via target that tracks RSS
Status:
In Progress
Priority:
High
Assignee:
Category:
Performance/Resource Usage
Target version:
% Done:
0%
Source:
Development
Tags:
Backport:
Reviewed:
Description
Basic idea is to have a new config like `mds_memory_target` that, if set, automatically adjusts `mds_cache_memory_limit` in response to RSS memory usage.
Recent experiments found that real RSS usage is about 1.25x the `mds_cache_memory_limit`. So, another layer which tracks RSS and makes finer adjustments would be valuable.
Related issues
History
#1 Updated by Patrick Donnelly about 2 years ago
- Related to Bug #22962: mds: move remaining containers in CDentry/CDir/CInode to mempool (cont.) added
#2 Updated by Patrick Donnelly about 2 years ago
- Related to Bug #20594: mds: cache limits should be expressed in memory usage, not inode count added
#3 Updated by Patrick Donnelly almost 2 years ago
- Status changed from New to In Progress
- Assignee set to Sidharth Anupkrishnan
- Target version changed from v14.0.0 to v15.0.0
- Labels (FS) task(intern), task(medium) added
#4 Updated by Patrick Donnelly almost 2 years ago
- Backport set to nautilus
#5 Updated by Vikhyat Umrao about 1 year ago
- Pull request ID set to 27027
#6 Updated by Patrick Donnelly 11 months ago
- Target version changed from v15.0.0 to v16.0.0
- Backport deleted (
nautilus)
#7 Updated by Patrick Donnelly about 11 hours ago
- Target version changed from v16.0.0 to v17.0.0