doc: update dbcache default in reduce-memory.md
What the developer wrote
Authored by Andrew Toth
doc: update dbcache default in reduce-memory.md
What changed, and why it matters
This is a one-line documentation update that corrects the described default value of a memory-cache setting. It does not change any code, behavior, or configuration. There is no security issue.
No action needed; treat as routine documentation maintenance.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The commit updates doc/reduce-memory.md to reflect that -dbcache now defaults to 1024 MiB (with a fallback to 450 MiB on systems with less than 4096 MiB RAM). The change is purely informational; no source code, defaults, or runtime logic are modified.
Changed components
doc/reduce-memory.mdInspect captured patch +1 / −1
diff --git a/doc/reduce-memory.md b/doc/reduce-memory.md
index cac5dc98..9a7e7452 100644
--- a/doc/reduce-memory.md
+++ b/doc/reduce-memory.md
@@ -6,7 +6,7 @@ There are a few parameters that can be dialed down to reduce the memory usage of
The size of some in-memory caches can be reduced. As caches trade off memory usage for performance, reducing these will usually have a negative effect on performance.
-- `-dbcache=<n>` - the UTXO database cache size, this defaults to `450`. The unit is MiB (1024).
+- `-dbcache=<n>` - the UTXO database cache size, this defaults to `1024` (or `450` if less than `4096` MiB system RAM is detected). The unit is MiB (1024).
- The minimum value for `-dbcache` is 4.
- A lower `-dbcache` makes initial sync time much longer. After the initial sync, the effect is less pronounced for most use-cases, unless fast validation of blocks is important, such as for mining.
Why this scored 15/100
Community notes
Notes can correct, qualify, or add evidence to the AI analysis. Every note shown here has been validated by a human moderator.
The AI analysis stands alone for now. Submit a note if you can add evidence or important context.