Enable Transparent Huge Pages selectively via madvise()
Open
- Dominant language
- C++
- Stars
- 16.7k
- Forks
- 1.6k
- Avg merge
- 1d 20h
- Merged PRs (30d)
- 126
Description
We, at Snowflake, currently enables Transparent Huge Pages (THP) blindly in the system level to boost the FDB performance.
https://forums.foundationdb.org/t/transparent-huge-pages-performance-impact/1398
However, this has a system-wide impact, and not always desired.
FDB should enable THP selectively on the memory segments that has the most performance impact.
Contributor guide
Research direction
No files, tests, or entry points are identified. Start by locating FoundationDB's existing system-wide Transparent Huge Pages handling and review Linux madvise() behavior; done means enabling THP selectively for the memory segments with the greatest performance impact without imposing the current system-wide effect.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, linux
- Domain
- operating-systems, performance
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100