c11508406e doc: Update docs that refer to -maxconnections (Martin Zumsande)
69ce0dba2a test: add test that EvictTxPeerIfFull only evicts tx-relaying peers (brunoerg)
3ed7f06418 p2p: trigger possible eviction if we support bloom filters and change a peer to tx relay (Martin Zumsande)
0bd3d3dfa5 init: make inbound tx relay percentage configurable (Amiti Uttarwar)
cc59aee196 test: add functional test for inbound maxconnection limits (Amiti Uttarwar)
1b76e04736 net: increase inbound capacity for block-relay-only connections (Martin Zumsande)
87bca1c2ad net: add options to AttemptToEvictConnection (Martin Zumsande)
Pull request description:
This is joint work with amitiuttarwar.
See issue #28462 for a broader discussion on increasing the number of block-relay-only connections independent of this particular implementation proposal.
We suggest to increase the number of inbound slots allocated to block-relay-only peers by increasing the default maximum connections from 125 to 200, with 50% of inbound slots accessible for tx-relaying peers.
This is a prerequisite for being able to increase the default number of outgoing block-relay-only peers later, because the current inbound capacity of the network is not sufficient.
In order to account for incoming tx-relaying peers separately from incoming block-relay peers, changes to the inbound eviction logic are necessary.
See the next post in this thread for a more detailed explanation and motivation of the changes.
ACKs for top commit:
instagibbs:
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achow101:
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dergoegge:
crACK c11508406e
marcofleon:
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Tree-SHA512: c71e1481eb235429a6c9d7ce771c7bf825f850b135e904ccfa3505112628fef4188b560d0be0847c968e5ece43c1518590069b7e6e2480790d3ef1ce07d1ac38
Add a configuration option for the number of worker threads used for
parallel UTXO prevout prefetching during block connection.
Default is 8 threads, max is 16, 0 disables parallel fetching.
a61907e5d9 doc: explain swapping in `reduce-memory.md` (Lőrinc)
Pull request description:
### Problem
Sustained [heavy swapping](https://en.wikipedia.org/wiki/Thrashing_(computer_science)) can grind execution to a halt, but today users get no direct warning from the node when this happens, and this caveat is not documented.
### Fix
We can’t easily detect heavy swap pressure in a reliable, cross-platform way, but we can document what swapping is and why it can severely degrade IBD performance.
---
Note: An earlier version of this PR attempted to detect and warn on heavy swapping (Linux-only), but it was changed to documentation based on review feedback.
ACKs for top commit:
ajtowns:
utACK a61907e5d9
sedited:
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Tree-SHA512: b21c40d07d78d890c19d3a17faad4ab4127688884dc433a1bdb63d18de07628c048227eba2f1258c6b542a71a986d4250f8abf8f8ffe0cda433ce0c8673978d4
Changes to the default mempool allocation size now documented.
Provides users with guidance on the mempool implications of -blocksonly
mode, along with instructions on how to re-enable old behaviour.
When -blocksonly is set to 1, it interacts with the -walletbroadcast
parameter and sets it to 0 if it has not been set already.This behavior
is not captured by the current documentation, which claims that -blocksonly
does not impact any wallet transactions.
Update the max number of outgoing peers from 8 to 10, due to the
addition of two -blocksonly peers.
