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| author | Ben Johnson <benbjohnson@yahoo.com> | 2015-03-27 15:27:32 -0600 |
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| committer | Ben Johnson <benbjohnson@yahoo.com> | 2015-03-27 15:27:32 -0600 |
| commit | 9d1dd87a79929d2d82b264a4163b745fd3c340e9 (patch) | |
| tree | 81e35cfcf58222d60ae4eee9c5d11a4d5ce6c16a | |
| parent | Merge pull request #334 from funkygao/master (diff) | |
| download | dedo-9d1dd87a79929d2d82b264a4163b745fd3c340e9.tar.gz dedo-9d1dd87a79929d2d82b264a4163b745fd3c340e9.tar.xz | |
README
Document use of free pages and page reclamation works.
| -rw-r--r-- | README.md | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -550,6 +550,12 @@ Here are a few things to note when evaluating and using Bolt: However, this is expected and the OS will release memory as needed. Bolt can handle databases much larger than the available physical RAM. +* Because of the way pages are laid out on disk, Bolt cannot truncate data files + and return free pages back to the disk. Instead, Bolt maintains a free list + of unused pages within its data file. These free pages can be reused by later + transactions. This works well for many use cases as databases generally tend + to grow. However, it's important to note that deleting large chunks of data + will not allow you to reclaim that space on disk. ## Other Projects Using Bolt |