feat(pebblekv): expose MemTableSize/MemTableStopWritesThreshold on Op… - #115
Merged
Conversation
…enOptions The memtable knobs were hardcoded (4 MiB / 2), which fragments a cold bulk index build into hundreds of tiny L0 files and drives a compaction storm that dominates cold-build wall-clock. Expose both on OpenOptions so a caller that knows its workload can enlarge the memtable; zero keeps the conservative built-in defaults and a sub-2 threshold is clamped to 2 (Pebble requires >= 2), so existing callers are unchanged. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
oc-engteam
approved these changes
Jul 14, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
…enOptions
The memtable knobs were hardcoded (4 MiB / 2), which fragments a cold bulk index build into hundreds of tiny L0 files and drives a compaction storm that dominates cold-build wall-clock. Expose both on OpenOptions so a caller that knows its workload can enlarge the memtable; zero keeps the conservative built-in defaults and a sub-2 threshold is clamped to 2 (Pebble requires >= 2), so existing callers are unchanged.