bitcoinknots/bitcoin

Increase default dbcache to ∞

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#70 opened on Mar 19, 2024

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 (10 comments) (0 reactions) (0 assignees)C++ (160 forks)auto 404
Testing & user comments wantedenhancementgood first issuehelp wanted

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Description

Bitcoin Knots already detects low-memory situations and flushes caches when there's only 10 MB left. It would be nice to just leave the UTXO cache unbound for optimal performance.

But is 10 MB enough? Or will it cause problems?

Testing requested :)

Just set dbcache=1048576 and let me know if you run into issues (maybe re-sync too)

Contributor guide

Research direction
Increase the default dbcache value to 1048576 and test the node for any memory issues or performance improvements. Document your observations.
Tech stack
cpp
Domain
blockchaindatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitC++ build environment
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80