d164a04342
The oversized `-dbcache` warning currently switches from a fixed `450 MiB` threshold below `2 GiB` of RAM to `75%` of total RAM at `2 GiB`. This creates a cliff where a small increase in RAM can raise the warning threshold to about `1536 MiB`. Apply the `75%` factor only to RAM above a `2 GiB` reserve while keeping `DEFAULT_DB_CACHE` as the minimum threshold. This removes the cliff: the threshold stays at the default until the percentage term exceeds it, then grows by `0.75 MiB` per additional MiB of RAM. This also aligns better with the recently merged parallel input prevout fetcher which performs better with slightly lower dbcache memory. Co-authored-by: Bortlesboat <Bortlesboat@users.noreply.github.com>
src/node/
The src/node/ directory contains code that needs to access node state
(state in CChain, CBlockIndex, CCoinsView, CTxMemPool, and similar
classes).
Code in src/node/ is meant to be segregated from code in
src/wallet/ and src/qt/, to ensure wallet and GUI
code changes don't interfere with node operation, to allow wallet and GUI code
to run in separate processes, and to perhaps eventually allow wallet and GUI
code to be maintained in separate source repositories.
As a rule of thumb, code in one of the src/node/,
src/wallet/, or src/qt/ directories should avoid
calling code in the other directories directly, and only invoke it indirectly
through the more limited src/interfaces/ classes.
This directory is at the moment
sparsely populated. Eventually more substantial files like
src/validation.cpp and
src/txmempool.cpp might be moved there.