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doc: update dbcache default in reduce-memory.md

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Andrew Toth 2026-02-27 09:20:06 -05:00
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doc/reduce-memory.md
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@ -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.