docs: update memory reclamation examples in the docs#392
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Pull Request Overview
This PR enhances the memory reclamation documentation by adding concrete assertions to demonstrate actual memory usage changes. The examples now include before/after memory size measurements to validate that memory reclamation works as expected.
- Added Memory trait import and explicit memory instance creation for size tracking
- Incorporated memory size measurements and assertions to prove memory behavior differences
- Added a missing
clear_new()call in the second scenario for consistency
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| docs/src/concepts/memory-manager.md | Updated memory reclamation example with assertions and size tracking |
| README.md | Applied identical documentation improvements to maintain consistency |
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michael-weigelt
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Aug 20, 2025
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maksymar
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Aug 25, 2025
This PR reverts adding `reclaim_memory` method. Reverts several recent commits in a single change: - `6e397bd` fix: use conservative bucket reuse that survives reload #394 - `00468e1` docs: update memory reclamation examples in the docs #392 - `b911479` docs: cleanup documentation #391 - `d1fde89` docs: use reclaim_memory() name and update docs accordingly #388 - `a18917b` docs: add safety documentation and tests for manual bucket release #387 - `73e96e8` feat: add manual bucket release to prevent memory waste #386 This PR restores the codebase to the state before these commits. Done with `git revert -n 6e397bd 00468e1 b911479 d1fde89 a18917b 73e96e8` The reason for reverting this approach was that it can reclaim unused memory in theory but provides little benefit in real-world migrations. All due to the requirement to keep buckets in ascending order in each VM. Example 1: Reuse works ``` A allocates: [0, 4, 5] B allocates: [1, 2, 3] A frees: [0, 4, 5] B grows: can reuse bucket 4 (since 4 > max(B) = 3) B after grow: [1, 2, 3, 4] ``` Example 2: Reuse fails ``` A allocates: [0, 1, 2] B allocates: [4, 5, 6] A frees: [0, 1, 2] B grows: cannot reuse any freed bucket (all < max(B) = 6), so allocates new bucket 7 B after grow: [4, 5, 6, 7] ``` In real life when migrating state A to state B, state B created after state A grown, so it's first bucket ID is already higher than any free bucket in state A virtual memory, therefore can not be reused.
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This PR improves memory reclamation examples with assertions that demonstrate real underlying memory changes — showing before/after usage.