With this change, we get more fine-grained error messages if something
goes wrong in the course of communicating with the SQLite database. To
pick some random examples, the error codes SQLITE_IOERR_NOMEM,
SQLITE_IOERR_CORRUPTFS or SQLITE_IOERR_FSYNC are way more specific than just a
plain SQLITE_IOERR, and the corresponding error messages generated by
sqlite3_errstr() will hence give a better hint to the user (or also to the
developers, if an error report is sent) what the cause for a failure is.
93b9800fec588fc0c258e754405db1e9f89cfb81 scripted-diff: Rename overloaded int GetArg to GetIntArg (Russell Yanofsky)
Pull request description:
This is meant to improve readability of code and remove guesswork needed to determine argument types and migrate to [typed arguments (#22978)](https://github.com/bitcoin/bitcoin/issues/22978) by having distinctly named `GetArg` `GetArgs` `GetBoolArg` and `GetIntArg` methods.
---
This commit was originally part of #22766 and had some review discussion there. But it was [wisely suggested](https://github.com/bitcoin/bitcoin/pull/22766#issuecomment-910001542) to be split off to make that PR smaller.
ACKs for top commit:
hebasto:
ACK 93b9800fec588fc0c258e754405db1e9f89cfb81.
MarcoFalke:
re-ACK 93b9800fec588fc0c258e754405db1e9f89cfb81 📨
Tree-SHA512: e034bd938b2c8fbadd90bcd52213a61161965dfddf18c2cb0d68816ecf2438cde8afee6fb7e3418f5c6b35c208338da9deb99e4e418dbf68ca34552e0916a625
dc10ca346b138d8de88c7bf53b1d7e69cc63e989 net: switch to signet DNS seed (Sjors Provoost)
Pull request description:
I spun up a DNS seed for Signet, source: https://github.com/sipa/bitcoin-seeder/pull/94
If anyone else spins up a DNS seed, let me know in the comment and I'll add it.
Because one DNS seed is not very diverse, this PR leaves two hardcoded nodes just in case (). The one dropped node no longer exists.
Replaces #23000.
ACKs for top commit:
kallewoof:
utACK dc10ca346b138d8de88c7bf53b1d7e69cc63e989
laanwj:
Concept and code review ACK dc10ca346b138d8de88c7bf53b1d7e69cc63e989
jarolrod:
ACK dc10ca346b138d8de88c7bf53b1d7e69cc63e989
shaavan:
ACK dc10ca346b138d8de88c7bf53b1d7e69cc63e989
Tree-SHA512: 534d189becd51974042fddc3efe3df230484f05cd945e756eaf6a4a8a580e2161b3a959eb3d44dea526269eea6f87a033f7cbfe86586782c6ca4ee7c7c4097a9
b8cd2a429271b7af12e98186449ddc00fc7580e6 Add references for the generator/constant used in Bech32(m) (Pieter Wuille)
Pull request description:
I often find myself recreating this, or looking up references for this construction. So instead, this seems like as good a place as any to place a summary.
ACKs for top commit:
Zero-1729:
crACK b8cd2a429271b7af12e98186449ddc00fc7580e6
Tree-SHA512: 9d2001c5016485cea441c28fda093d67a7d4274e4c1e4dd3d357353ce6a52987e38d684d8462bad2d72ba0b6b1db2f809948e228fb02371e64b12146aace89bd
d2eccacd188959c5aed661d0d5b39c119e7c7a32 doc: Clarify that change_cost cannot be negative in GetSelectionWaste (benthecarman)
Pull request description:
We assert that the `change_cost` must be positive so we should document it in the function's docs
4f5ad43b1e/src/wallet/coinselection.cpp (L361)
ACKs for top commit:
jonatack:
ACK d2eccacd188959c5aed661d0d5b39c119e7c7a32
jarolrod:
ACK d2eccacd188959c5aed661d0d5b39c119e7c7a32
shaavan:
ACK d2eccacd188959c5aed661d0d5b39c119e7c7a32
Tree-SHA512: 089bc41d7e212b811455527ce2ac83301eae0edc03933dcbd5229b22078827395c8e3bcfda0ba029b7c60705db3119b4f80e372842a6bd8dae195dbaa0b52833
Improve readability of code, simplify future scripted diff cleanup PRs, and be
more consistent with naming for GetBoolArg.
This will also be useful for replacing runtime settings type checking
with compile time checking.
-BEGIN VERIFY SCRIPT-
git grep -l GetArg | xargs sed -i 's/GetArg(\([^)]*\( [0-9]\+\|-1\|port\|BaseParams().RPCPort()\|Params().GetDefaultPort()\|_TIMEOUT\|Height\|_WORKQUEUE\|_THREADS\|_CONNECTIONS\|LIMIT\|SigOp\|Bytes\|_VERSION\|_AGE\|_CHECKS\|Checks() ? 1 : 0\|_BANTIME\|Cache\|BLOCKS\|LEVEL\|Weight\|Version\|BUFFER\|TARGET\|WEIGHT\|TXN\|TRANSACTIONS\|ADJUSTMENT\|i64\|Size\|nDefault\|_EXPIRY\|HEIGHT\|SIZE\|SNDHWM\|_TIME_MS\)\))/GetIntArg(\1)/g'
-END VERIFY SCRIPT-
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
ee7891a0c412728cf8bec667f25263682a9baaaf doc: Remove outdated comments (Hennadii Stepanov)
Pull request description:
The first removed comment was introduced in #5288, the second one in #13503.
Both are outdated since #14336.
ACKs for top commit:
duncandean:
crACK ee7891a0
Tree-SHA512: a2d6071919e81c916bfc2178109bbc464417321bcc567ed0644448c5faea8e58cb08a7657afa1b6ffe1fb63e114a2a47b31c893e471839ba9d49a3986e68b2a7
faa9c19a4b27e7fabf7c5deae1b4c4ca612ed01a doc: Add 23061 release notes (MarcoFalke)
faff17bbde6dcb1482a6210bc48b3192603a446f Fix (inverse) meaning of -persistmempool (MarcoFalke)
Pull request description:
Passing `-persistmempool` is currently treated as `-nopersistmempool`
ACKs for top commit:
jnewbery:
reACK faa9c19a4b27e7fabf7c5deae1b4c4ca612ed01a
hebasto:
ACK faa9c19a4b27e7fabf7c5deae1b4c4ca612ed01a, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: f34a89a07745dabe340eb845b2a348b79c093e9056f7a21c17e1ba2e278177c9b4cf30e8095791fd645a7f90eb34850b2eee0c869b4f6ec02bf749c73b0e52ee
d96b000e94d72d041689c5c47e374df2ebc0e011 Make GUI UTXO lock/unlock persistent (Samuel Dobson)
077154fe698f5556ad6e26ef49c9024c2f07ff68 Add release note for lockunspent change (Samuel Dobson)
719ae927dcdb60c0f9902fa79796256035228c4e Update lockunspent tests for lock persistence (Samuel Dobson)
f13fc16295c19a156f2974d2d73fba56d52fc161 Allow lockunspent to store the lock in the wallet DB (Samuel Dobson)
c52789365e5dbcb25aa5f1775de4d318da79e5a7 Allow locked UTXOs to be store in the wallet database (Samuel Dobson)
Pull request description:
Addresses and closes#22368
As per that issue (and its predecessor #14907), there seems to be some interest in allowing unspent outputs to be locked persistently. This PR does so by adding a flag to lockunspent to store the change in the wallet database. Defaults to false, so there is no change in default behaviour.
Edit: GUI commit changes default behaviour. UTXOs locked/unlocked via the GUI are now persistent.
ACKs for top commit:
achow101:
ACK d96b000e94d72d041689c5c47e374df2ebc0e011
kristapsk:
ACK d96b000e94d72d041689c5c47e374df2ebc0e011
lsilva01:
Tested ACK d96b000e94 on Ubuntu 20.04
prayank23:
ACK d96b000e94
Tree-SHA512: 957a5bbfe7f763036796906ccb1598feb6c14c5975838be1ba24a198840bf59e83233165cb112cebae909b6b25bf27275a4d7fa425923ef6c788ff671d7a89a8
e148a5233292d156cda76cb20afb6641fc20f25e bench: fixed ubsan implicit conversion (Martin Ankerl)
da4e2f1da0388d424659fa8c853fcaf37b4b5959 bench: various args improvements (Jon Atack)
d312fd94a1083cdbf071f2888aab43c62d358151 bench: clean up includes (Jon Atack)
1f10f1663e53474038b9111c4264a250cffe7501 bench: add usage description and documentation (Martin Ankerl)
d3c6f8bfa12f78635752878b28e66cec0c85d4a9 bench: introduce -min_time argument (Martin Ankerl)
9fef8329322277d9c14c8df1867cb3c61477c431 bench: make EvictionProtection.* work with any number of iterations (Martin Ankerl)
153e6860e84df0a3d52e5a3b2fe9c37b5e0b029a bench: change AddrManGood to AddrManAddThenGood (Martin Ankerl)
468b232f71562280aae16876bc257ec24f5fcccb bench: remove unnecessary & incorrect multiplication in MuHashDiv (Martin Ankerl)
eed99cf272426e5957bee35dc8e7d0798aec8ec0 bench: update nanobench from 4.3.4 to 4.3.6 (Martin Ankerl)
Pull request description:
This PR updates the nanobench with the latest release from upstream, v4.3.6. It fixes the missing performance counters.
Due to discussions on #22999 I have done some work that should make the benchmark results more reliable. It introduces a new flag `-min_time` that allows to run a benchmark for much longer then the default. When results are unreliable, choosing a large timeframe here should usually get repeatable results even when frequency scaling cannot be disabled. The default is now 10ms. For this to work I have changed the `AddrManGood` and `EvictionProtection` benchmarks so they work with any number of iterations.
Also, this adds more usage documentation to `bench_bitcoin -h` and I've cherry-picked two changes from #22999 authored by Jon Atack
ACKs for top commit:
jonatack:
re-ACK e148a5233292d156cda76cb20afb6641fc20f25e
laanwj:
Code review ACK e148a5233292d156cda76cb20afb6641fc20f25e
Tree-SHA512: 2da6de19a5c85ac234b190025e195c727546166dbb75e3f9267e667a73677ba1e29b7765877418a42b1407b65df901e0130763936525e6f1450f18f08837c40c
fa4db8671bb604e11b43a837f91de8866226f166 test: Activate all regtest softforks at height 1, unless overridden (MarcoFalke)
faad1e5ffda255aecf1b0ea2152cd4f6805e678f Introduce -testactivationheight=name@height setting (MarcoFalke)
fadb2ef2fa8561882db463f35df9b8a0e9609658 test: Add extra_args argument to TestChain100Setup constructor (MarcoFalke)
faa46986aaec69e4cf016101ae517ce8778e2ac5 test: Remove version argument from build_next_block in p2p_segwit test (MarcoFalke)
fa086ef5398b5ffded86e4f0d6633c523cb774e9 test: Remove unused ~TestChain100Setup (MarcoFalke)
Pull request description:
All softforks that are active at the tip of mainnet, should also be active from genesis in regtest. Otherwise their rules might not be enforced in user testing, thus making their testing less useful.
To still allow tests to check pre-softfork rules, a runtime argument can change the activation height.
ACKs for top commit:
laanwj:
Code review ACK fa4db8671bb604e11b43a837f91de8866226f166
theStack:
re-ACK fa4db8671bb604e11b43a837f91de8866226f166
Tree-SHA512: 6397d46ff56ebc48c007a4cda633904d6ac085bc76b4ecf83097c546c7eec93ac0c44b88083b2611b9091c8d1fb8ee1e314065de078ef15e922c015de7ade8bf
673a5bd3377929a0a6a62eda8b560e47bc2cca0c test: validation: add unittest for UpdateTip behavior (James O'Beirne)
2705570109a2a90ecfd3f4180944498626fc2707 test: refactor: separate CreateBlock in TestChain100Setup (James O'Beirne)
298bf5d563cc740c6ae71750d86942e0278b22d6 test: refactor: declare NoMalleation const auto (James O'Beirne)
071200993f3a9412821ce5387851d659baf85327 move-only: unittest: add test/util/chainstate.h (James O'Beirne)
8f5710fd0ac5173b577e5d00708485170b321bcc validation: fix CheckBlockIndex for multiple chainstates (James O'Beirne)
5a807736dacfc3e6fa57231219336acf08be38fb validation: insert assumed-valid block index entries into candidates (James O'Beirne)
01a9b8fe719efab2c268dc738bc93cfbdf92edb7 validation: set BLOCK_ASSUMED_VALID during snapshot load (James O'Beirne)
42b2520db93fd9feb3df4101654391fa7d3e2140 chain: add BLOCK_ASSUMED_VALID for use with assumeutxo (James O'Beirne)
b217020df78bc981d221fe04497c831120ef969f validation: change UpdateTip for multiple chainstates (James O'Beirne)
665072a36df2e4c88705fedd4ac7c955d7f6a488 doc: add comment for g_best_block (James O'Beirne)
ac4051d891e2d5c8ac130da16b85b9d880b44720 refactor: remove unused assumeutxo methods (James O'Beirne)
9f6bb539359b98d5b39482ab8a28a68608f0c645 validation: add chainman ref to CChainState (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11) (parent PR: #15606)
---
Modify UpdateTip and CheckBlockIndex for use with multiple chainstates. Includes a new unittest verifying `g_best_block` behavior (previously untested at the unit level) and various changes necessary for running and testing `ProcessNewBlock()`-like behavior on the background validation chainstate.
This changeset introduces a new block index `nStatus` flag called `BLOCK_ASSUMED_VALID`, and it is applied to block index entries that are beneath the UTXO snapshot base block upon snapshot load. Once each block is validated (during async background validation), the flag is removed. This allows us to avoid (ab)using `BLOCK_VALID_*` flags for snapshot chain block entries, and preserves the original meaning of those flags.
Note: this PR previously incorporated changes to `LoadBlockIndex()` and `RewindBlockIndex()` as noted in Russ' comments below, but once I generated the changes necessary to test the UpdateTip change, I decided to split this changes out into another PR due to the size of this one.
ACKs for top commit:
achow101:
ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c
jonatack:
Code-review re-ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c reviewed diff, rebased to master/debug build/ran unit+functional tests
naumenkogs:
ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c
fjahr:
Code review ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c
ariard:
utACK 673a5bd3
ryanofsky:
Code review ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c. Just linker fix and split commit changes mentioned https://github.com/bitcoin/bitcoin/pull/21526#issuecomment-921064563 since last review
benthecarman:
ACK 673a5bd3377929a0a6a62eda8b560e47bc2cca0c
Tree-SHA512: 0a6dc23d041b27ed9fd0ee1f3e5971b92fb1d2df2fc9b655d5dc48594235321ab1798d06de2ec55482ac3966a9ed56de8d56e9e29cae75bbe8690bafc2dda383
64e1ddd255771e57a88a20f07dbde04a83bf0c75 log: call LogPrint only once with time data samples (Martin Zumsande)
Pull request description:
When timedata samples are logged, `LogPrint()` is currently invoked multiple times on the same log entry.
This can lead to chaos in the log when other threads log concurrently, as in this example which motivated this PR:
```
2021-09-20T00:28:57Z -48 -26 -11 -8 -6 Addrman checks started: new 37053, tried 83, total 37136
2021-09-20T00:28:57Z -3 -1 -1 -1 -1 +0 | nTimeOffset = -3 (+0 minutes)
```
Fix this by building the log message in a string and logging it one `LogPrint()` call. I also changed the wording slightly so that it becomes understandable what is being logged, example:
```
2021-09-21T21:03:24Z time data samples: -43 -18 -12 -4 -1 -1 +0 +0 +268 | median offset = -1 (+0 minutes)
```
ACKs for top commit:
jnewbery:
Tested ACK 64e1ddd255
laanwj:
Tested ACK 64e1ddd255771e57a88a20f07dbde04a83bf0c75, new message lgtm
Tree-SHA512: ffb7a93166cc8fd6a39200b9e03a9d1e8e975b7ded822ccddd015f553258b991162a5cb867501f426d3ebcfef4f32f0e06e17b18e6b01486b967595d102f8379
ab278007991b912299eaf794d87a636423521d27 log: Remove unnecessary timing logs for Callbacks bench (Douglas Chimento)
Pull request description:
Logging of Callbacks are no longer needed and records times that are not relevant for performance analysis.
resolves#23071
ACKs for top commit:
laanwj:
Thanks. re-ACK ab278007991b912299eaf794d87a636423521d27
jonatack:
Code review ACK ab278007991b912299eaf794d87a636423521d27
Tree-SHA512: be1ea780c4db9407a8799065a8824b9d3610abac72af5907809ed62d493d5a54e65735de45ec5fdd0edb85ef21ec6036105abe8ca00093942980f6f92e7fec50
0ef08f8bed537435f3f9db1e38b7d6f3551fe830 add missing includes in policy/rbf (glozow)
c6abeb76fbb877f3f16d699c73a1828c7da2e6d1 make MAX_BIP125_RBF_SEQUENCE constexpr (glozow)
3cf46f6055f7cd2e5da81e0d29cafc51ad4aafba [doc] improve RBF documentation (glozow)
c78eb8651b0949fefcafb22940512f4ef98d3358 [policy/refactor] pass in relay fee instead of using global (glozow)
Pull request description:
Followups to #22675 and documentation-only changes intended to clarify the code/logic concerning mempool Replace-by-Fee.
ACKs for top commit:
jnewbery:
utACK 0ef08f8bed537435f3f9db1e38b7d6f3551fe830
fanquake:
ACK 0ef08f8bed537435f3f9db1e38b7d6f3551fe830
Tree-SHA512: 6797ae758beca0c9673cb00ce85da48e9a4ac5cb5100074ca93e004cdb31d24d91a1a7721b57fc2f619addfeb4950d8caf45fee0f5b7528defbbd121eb4d271f
fa08d4cfb1e3447a76093d46edc1c9de5ceee454 Use C++11 member initializer in CTxMemPoolEntry (MarcoFalke)
Pull request description:
This removes a bunch of boilerplate, makes the code easier to read.
Also, C++11 member initialization avoids accidental uninitialized
members.
Can be reviewed with the git option "--word-diff-regex=." or with "git
difftool --tool=meld".
ACKs for top commit:
jnewbery:
Code review ACK fa08d4cfb1e3447a76093d46edc1c9de5ceee454
shaavan:
Code Review ACK fa08d4cfb1e3447a76093d46edc1c9de5ceee454
Tree-SHA512: 2424861002fbcef2a3f01845662c115b973a7a5103f359305b5d9237c055eb003aa7646fc1cb30e6eaf90810d662f94cedc6f90795e30b56680f9c81f631d64b
fa45a1338adb127d69aee982920e29519bc1fed6 refactor: Remove unused validation includes (MarcoFalke)
Pull request description:
Unused includes will cause needless recompilation when headers are changed. Also, they pretend there are dependencies that don't exist.
Fix both by removing them.
ACKs for top commit:
laanwj:
Code review ACK fa45a1338adb127d69aee982920e29519bc1fed6
theStack:
ACK fa45a1338adb127d69aee982920e29519bc1fed6 ♻️
Tree-SHA512: 69190fd09184b75bce34ce3f315a1817e09ea32779f9ddc2d4790c89b0887b6cebd88aba66fa054c43c9183fc66202a556d982dd7034fc389a75802d8aaac83a
This removes a bunch of boilerplate, makes the code easier to read.
Also, C++11 member initialization avoids accidental uninitialized
members.
Can be reviewed with the git option "--word-diff-regex=." or with "git
difftool --tool=meld".
The benchmarks can now run much longer due to the minimum of 10ms or
directly with -min_time. With -min_time=20000 I could trigger two ubsan
errors in the benchmarks, which are fixed in this commit by using
unsigned type and adding "& 0xFF".
- use ALLOW_BOOL for -list arg instead of ALLOW_ANY
- touch up `-asymptote=<n1,n2,n3...>` help
- pack Args struct a bit more efficiently
- handle args in alphabetical order
When it is not easily possible to stabilize benchmark machine and code
the argument -min_time can be used to specify a minimum duration
that a benchmark should take. E.g. choose -min_time=1000 if you
are willing to wait about 1 second for each benchmark result.
The default is now set to 10ms instead of 0, which should make runs on
fast machines more stable with negligible slowdown.
Moves copying of the setup into the benchmark loop so it is possible
to run the loop for an arbitrary number of times.
The overhead due to copying the candidates inside the loop is about 3%.
Moves some of the setup into the benchmark loop so it is possible to run
the loop for an arbitrary number of times. Due to recent optimizations
in #22974 the benchmark now runs much faster, so the inner loop now calls
Good() 32 times as often to get better numbers.
Renamed the benchmark to AddrManAddThenGood because that's now what is
actually tested. To get the the number of just Good(), one needs to
subtract the benchmark result of AddrManAdd.
Introduced in #19055, MuHashDiv benchmark used to multiply with a loop
based on epochIterations. That does not do what it is supposed to do,
because epochIterations() is determined automatically from nanobench.
Also, multiplication is not needed for the algorithm (as pointed out by
a comment in #19055), so it's better to remove this loop.
Most importantly, this update fixes a bug in nanobench that always
disabled performance counters on linux.
It also adds another sanitizer suppression that is caught in clang++ 12.
This speeds up compilation of the whole program because the included
header file is smaller.
Can be reviewed with --color-moved=dimmed-zebra --color-moved-ws=ignore-all-space
cdaab90662a54e331de0e49a89596bbb94a8ac45 Add test for addrman consistency check on restart with asmap (Jon Atack)
869f136816c6900ce84bc4b5a9c93c0deab85193 Add test for rpc addpeeraddress with "tried" argument (Jon Atack)
ef242f52137f2a79a739447251d7759bd4705be0 Allow passing "tried" to rpc addpeeraddress to call CAddrMan::Good() (Jon Atack)
Pull request description:
This pull adds a `tried` argument to RPC addpeeraddress and a regression test for the recent addrman/asmap changes and issue.
PR #22697 introduced a reproducible bug in commit 181a1207 that fails addrman consistency checks and causes it to significantly lose peer entries when the `-asmap` configuration option is used.
The issue occurs upon bitcoind restart due to an initialization order change in `src/init.cpp` in that commit, whereby CAddrman asmap is set after deserializing `peers.dat`, rather than before.
Issue reported on the `#bitcoin-core-dev` IRC channel starting at https://www.erisian.com.au/bitcoin-core-dev/log-2021-08-23.html#l-263.
```
addrman lost 22813 new and 2 tried addresses due to collisions or invalid addresses
ADDRMAN CONSISTENCY CHECK FAILED!!! err=-17 bitcoind: ./addrman.h:707: void CAddrMan::Check() const: Assertion `false' failed. Aborted
```
How to reproduce:
- `git checkout 181a1207`, build, and launch bitcoind with the `-asmap` and `-checkaddrman=1` configuration options enabled
- restart bitcoind
- bitcoind aborts on the second call to the addrman consistency checks in `CAddrMan::Check()`
How to test this pull:
- `git checkout 181a1207`, cherry pick the first commit of this branch, build, git checkout this branch, run `test/functional/rpc_net.py`, which should pass, and then run `test/functional/feature_asmap.py`, which should fail with the following output:
```
AssertionError: Unexpected stderr bitcoind: ./addrman.h:739: void CAddrMan::Check() const: Assertion `false' failed.
```
ACKs for top commit:
jnewbery:
utACK cdaab90662a54e331de0e49a89596bbb94a8ac45
mzumsande:
re-ACK cdaab90662a54e331de0e49a89596bbb94a8ac45 (based on code review of diff to d586817)
vasild:
ACK cdaab90662a54e331de0e49a89596bbb94a8ac45
Tree-SHA512: 0251a18fea629b62486fc907d7ab0e96c6df6fadb9e4d62cff018bc681afb6ac31e0e7258809c0a88f91e4a36c4fb0b16ed294ce47ef30585217de89c3342399
c17f554fcc63e9e1f6ba64750df475d8a8d11f2e Fix BlockAssembler::AddToBlock, CTxMemPool::PrioritiseTransaction logging (Jon Atack)
Pull request description:
This is a tale of two fees, er, fee rates... indeed, one is misdescribed as a fee, and the other is incorrectly called a fee rate.
From this review discussion: https://github.com/bitcoin/bitcoin/pull/22689#discussion_r695866211 (thanks to John Newbery).
ACKs for top commit:
laanwj:
Code review ACK c17f554fcc63e9e1f6ba64750df475d8a8d11f2e
Tree-SHA512: 3d9df3209a72562c5f9bbf815923d5b089d04491b8d19caa2c04158c501b47ef01e47f1c32d89adcbaf3c6357329507f65b4bb2963214c3451bbfa61ac812530
9bdda50151dd808cbad094d457bf0ed7939a7c87 Enable TLS in links in documentation (Jeremy Rand)
Pull request description:
This PR enables TLS in several documentation links, which improves security.
ACKs for top commit:
fanquake:
ACK 9bdda50151dd808cbad094d457bf0ed7939a7c87
Tree-SHA512: 9d04d8771a9daf3c3b9914ff324e2eabfdf3ff5ae7f7dc92b84a1f3527010ceb860e73873a8f24d6051763eb472d9ea324ccbd6129a40318a520ca88c05f0586
57ce20307e604530f78ef4f0f8d9fb94f80ca81b fuzz: allow lower number of sources (Martin Zumsande)
acf656d540a82e6fc30421590305cfe295eabbb5 fuzz: Use public interface to fill addrman tried tables (Martin Zumsande)
eb2e113df13c7b1ede279878f5cbad877af49f8e addrman: Improve performance of Good (Martin Zumsande)
Pull request description:
Currently, `CAddrman::Good()` is rather slow because the process of moving an addr from new to tried involves looping over the new tables twice:
1) In `Good_()`, there is a loop searching for a new bucket the addr is currently in, but this information is never used except for aborting if it is not found anywhere (since [this commit](e6b343d880 (diff-49d1faa58beca1ee1509a247e0331bb91f8604e30a483a7b2dea813e6cea02e2R263)) it is no longer passed to `MakeTried`)
This is unnecessary because in a non-corrupted addrman, an address that is not in New must be either in Tried or not at all in addrman, both cases in which we'd return early in `Good_()` and never get to this point.
I removed this loop (and left a check for `nRefCount` as a belt-and-suspenders check).
2) In `MakeTried()`, which is called from `Good_()`, another loop removes all instances of this address from new. This can be spedup by stopping the search at `nRefCount==0`. Further reductions in `nRefCount` would only lead to an assert anyway.
Moreover, the search can be started at the bucket determined by the source of the addr for which `Good` was called, so that if it is present just once in New, no further buckets need to be checked.
While calls to `Good()` are not that frequent normally, the performance gain is clearly seen in the fuzz target `addman_serdeser`, where, because of the slowness in creating a decently filled addrman, a shortcut was created that would directly populate the tried tables by reaching into addrman's internals, bypassing `Good()` (#21129).
I removed this workaround in the second commit: Using `Good()` is still slower by a factor of 2 (down from a factor of ~60 before), but I think that this compensated by the advantages of not having to reach into the internal structures of addrman (see https://github.com/jnewbery/bitcoin/pull/18#issuecomment-775218676).
[Edit]: For benchmark results see https://github.com/bitcoin/bitcoin/pull/22974#issuecomment-919435266 and https://github.com/bitcoin/bitcoin/pull/22974#issuecomment-920445700 - the benchmark `AddrManGood` shows a significant speedup by a factor >100.
ACKs for top commit:
naumenkogs:
ACK 57ce20307e604530f78ef4f0f8d9fb94f80ca81b
jnewbery:
ACK 57ce20307e
laanwj:
Code review ACK 57ce20307e604530f78ef4f0f8d9fb94f80ca81b
theStack:
ACK 57ce20307e604530f78ef4f0f8d9fb94f80ca81b
vasild:
ACK 57ce20307e604530f78ef4f0f8d9fb94f80ca81b
Tree-SHA512: fb6dfc198f2e28bdbb41cef9709828f22d83b4be0e640a3155ca42e771b6f58466de1468f54d773e794f780a79113f9f7d522032e87fdd75bdc4d99330445198
