Call malloc_trim(3) Before Reload to Release Unused Memory🧠
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- Dominant language
- C++
- Stars
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- Avg merge
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- Merged PRs (30d)
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Description
Is your feature request related to a problem? Please describe.
Currently, memory that has been allocated and not released is often retained by the current process. While this can benefit the same process when it mallocs more memory (re-usage), it doesn't help other processes, including a new main process during a reload. As a result, the system may be inefficient in terms of memory utilization across reloads.
Describe the solution you'd like
Before every reload attempt, the main process should call malloc_trim(3) if available to release unused memory back to the system. This would allow the system to free up memory that may no longer be needed, helping with overall memory efficiency and preventing wasted space for other processes, including newly spawned ones.
Describe alternatives you've considered
- #8110
Additional context
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the main-process reload path and determine where availability of malloc_trim(3) is checked. Ensure the call occurs before every reload attempt when available, and verify the behavior with the relevant reload or memory-management tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- backend, performance
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100