4ae9a10adadoc: add release notes for dbcache bump (Andrew Toth)c510d126efdoc: update dbcache default in reduce-memory.md (Andrew Toth)027cac8527qt: show GetDefaultDBCache() in settings (Andrew Toth)5b34f25184dbcache: bump default from 450MB -> 1024MB if enough memory (Andrew Toth) Pull request description: Alternative to #34641 This increases the default `dbcache` value from `450MiB` to `1024MiB` if: - `dbcache` is unset - The system is 64 bit - At least 4GiB of RAM is detected Otherwise fallback to previous `450MiB` default. This should be simple enough to get into v31. The bump to 1GiB shows significant performance increases in #34641. It also alleviates concerns of too high default for steady state, and of lowering the current dbcache for systems with less RAM. This change only changes bitcoind behavior, while kernel still defaults to 450 MiB. ACKs for top commit: ajtowns: ACK4ae9a10adakevkevinpal: reACK [4ae9a10](4ae9a10ada) svanstaa: ACK [4ae9a10](4ae9a10ada) achow101: ACK4ae9a10adasipa: ACK4ae9a10adaTree-SHA512: ee3acf1fb08523ac80e37ec8f0caca226ffde6667f3a75ae6f4f4f54bc905a883ebcf1bf0e8a8a15c7cfabff96c23225825b3fff4506b9ab9936bf2c0a2c2513
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.