Note that with this change we are no-longer including PTHREAD_* flags
when building libbitcoinconsensus.
Also note that we are including PTHREAD_LIBS in AM_PTHREAD_FLAGS
This replaces the current benchmarking framework with nanobench [1], an
MIT licensed single-header benchmarking library, of which I am the
autor. This has in my opinion several advantages, especially on Linux:
* fast: Running all benchmarks takes ~6 seconds instead of 4m13s on
an Intel i7-8700 CPU @ 3.20GHz.
* accurate: I ran e.g. the benchmark for SipHash_32b 10 times and
calculate standard deviation / mean = coefficient of variation:
* 0.57% CV for old benchmarking framework
* 0.20% CV for nanobench
So the benchmark results with nanobench seem to vary less than with
the old framework.
* It automatically determines runtime based on clock precision, no need
to specify number of evaluations.
* measure instructions, cycles, branches, instructions per cycle,
branch misses (only Linux, when performance counters are available)
* output in markdown table format.
* Warn about unstable environment (frequency scaling, turbo, ...)
* For better profiling, it is possible to set the environment variable
NANOBENCH_ENDLESS to force endless running of a particular benchmark
without the need to recompile. This makes it to e.g. run "perf top"
and look at hotspots.
Here is an example copy & pasted from the terminal output:
| ns/byte | byte/s | err% | ins/byte | cyc/byte | IPC | bra/byte | miss% | total | benchmark
|--------------------:|--------------------:|--------:|----------------:|----------------:|-------:|---------------:|--------:|----------:|:----------
| 2.52 | 396,529,415.94 | 0.6% | 25.42 | 8.02 | 3.169 | 0.06 | 0.0% | 0.03 | `bench/crypto_hash.cpp RIPEMD160`
| 1.87 | 535,161,444.83 | 0.3% | 21.36 | 5.95 | 3.589 | 0.06 | 0.0% | 0.02 | `bench/crypto_hash.cpp SHA1`
| 3.22 | 310,344,174.79 | 1.1% | 36.80 | 10.22 | 3.601 | 0.09 | 0.0% | 0.04 | `bench/crypto_hash.cpp SHA256`
| 2.01 | 496,375,796.23 | 0.0% | 18.72 | 6.43 | 2.911 | 0.01 | 1.0% | 0.00 | `bench/crypto_hash.cpp SHA256D64_1024`
| 7.23 | 138,263,519.35 | 0.1% | 82.66 | 23.11 | 3.577 | 1.63 | 0.1% | 0.00 | `bench/crypto_hash.cpp SHA256_32b`
| 3.04 | 328,780,166.40 | 0.3% | 35.82 | 9.69 | 3.696 | 0.03 | 0.0% | 0.03 | `bench/crypto_hash.cpp SHA512`
[1] https://github.com/martinus/nanobench
* Adds support for asymptotes
This adds support to calculate asymptotic complexity of a benchmark.
This is similar to #17375, but currently only one asymptote is
supported, and I have added support in the benchmark `ComplexMemPool`
as an example.
Usage is e.g. like this:
```
./bench_bitcoin -filter=ComplexMemPool -asymptote=25,50,100,200,400,600,800
```
This runs the benchmark `ComplexMemPool` several times but with
different complexityN settings. The benchmark can extract that number
and use it accordingly. Here, it's used for `childTxs`. The output is
this:
| complexityN | ns/op | op/s | err% | ins/op | cyc/op | IPC | total | benchmark
|------------:|--------------------:|--------------------:|--------:|----------------:|----------------:|-------:|----------:|:----------
| 25 | 1,064,241.00 | 939.64 | 1.4% | 3,960,279.00 | 2,829,708.00 | 1.400 | 0.01 | `ComplexMemPool`
| 50 | 1,579,530.00 | 633.10 | 1.0% | 6,231,810.00 | 4,412,674.00 | 1.412 | 0.02 | `ComplexMemPool`
| 100 | 4,022,774.00 | 248.58 | 0.6% | 16,544,406.00 | 11,889,535.00 | 1.392 | 0.04 | `ComplexMemPool`
| 200 | 15,390,986.00 | 64.97 | 0.2% | 63,904,254.00 | 47,731,705.00 | 1.339 | 0.17 | `ComplexMemPool`
| 400 | 69,394,711.00 | 14.41 | 0.1% | 272,602,461.00 | 219,014,691.00 | 1.245 | 0.76 | `ComplexMemPool`
| 600 | 168,977,165.00 | 5.92 | 0.1% | 639,108,082.00 | 535,316,887.00 | 1.194 | 1.86 | `ComplexMemPool`
| 800 | 310,109,077.00 | 3.22 | 0.1% |1,149,134,246.00 | 984,620,812.00 | 1.167 | 3.41 | `ComplexMemPool`
| coefficient | err% | complexity
|--------------:|-------:|------------
| 4.78486e-07 | 4.5% | O(n^2)
| 6.38557e-10 | 21.7% | O(n^3)
| 3.42338e-05 | 38.0% | O(n log n)
| 0.000313914 | 46.9% | O(n)
| 0.0129823 | 114.4% | O(log n)
| 0.0815055 | 133.8% | O(1)
The best fitting curve is O(n^2), so the algorithm seems to scale
quadratic with `childTxs` in the range 25 to 800.
b0c774b48a Add new mempool benchmarks for a complex pool (Jeremy Rubin)
Pull request description:
This PR is related to #17268.
It adds a mempool stress test which makes a really big complicated tx graph, and then, similar to mempool_eviction test, trims the size.
The test setup is to make 100 original transactions with Rand(10)+2 outputs each.
Then, 800 times:
we create a new transaction with Rand(10) + 1 parents that are randomly sampled from all existing transactions (with unspent outputs). From each such parent, we then select Rand(remaining outputs) +1 50% of the time, or 1 outputs 50% of the time.
Then, we trim the size to 3/4. Then we trim it to just a single transaction.
This creates, hopefully, a big bundle of transactions with lots of complex structure, that should really put a strain on the mempool graph algorithms.
This ends up testing both the descendant and ancestor tracking.
I don't love that the test is "unstable". That is, in order to compare this test to another, you really can't modify any of the internal state because it will have a different order of invocations of the deterministic randomness. However, it certainly suffices for comparing branches.
Top commit has no ACKs.
Tree-SHA512: cabe96b849b9885878e20eec558915e921d49e6ed1e4b011b22ca191b4c99aa28930a8b963784c9adf78cc8b034a655513f7a0da865e280a1214ae15ebb1d574
prototypes used in src/test/script_tests.cpp:
- CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey, int nValue = 0);
- CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CScriptWitness& scriptWitness, const CTransaction& txCredit);
prototypes used in bench/verify_script.cpp:
- CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey);
- CMutableTransaction BuildSpendingTransaction(const CScript& scriptSig, const CMutableTransaction& txCredit);
The more generic versions from the script tests are moved into a new file pair
transaction_utils.cpp/h and the calls are adapted accordingly in the
verify_script benchmark (passing the nValue of 1 explicitely for
BuildCreditingTransaction(), passing empty scriptWitness explicitely and
converting txCredit parameter to CTransaction in BuildSpendingTransaction()).
bb326add9f Add ChaCha20Poly1305@Bitcoin AEAD benchmark (Jonas Schnelli)
99aea045d6 Add ChaCha20Poly1305@Bitcoin tests (Jonas Schnelli)
af5d1b5f4a Add ChaCha20Poly1305@Bitcoin AEAD implementation (Jonas Schnelli)
Pull request description:
This adds a new AEAD (authenticated encryption with additional data) construct optimised for small messages (like used in Bitcoins p2p network).
Includes: #15519, #15512 (please review those first).
The construct is specified here.
https://gist.github.com/jonasschnelli/c530ea8421b8d0e80c51486325587c52#ChaCha20Poly1305Bitcoin_Cipher_Suite
This aims for being used in v2 peer-to-peer messages.
ACKs for top commit:
laanwj:
code review ACK bb326add9f
Tree-SHA512: 15bcb86c510fce7abb7a73536ff2ae89893b24646bf108c6cf18f064d672dbbbea8b1dd0868849fdac0c6854e498f1345d01dab56d1c92031afd728302234686
2dfe27517 Add ChaCha20 bench (Jonas Schnelli)
2bc2b8b49 Add ChaCha20 encryption option (XOR) (Jonas Schnelli)
Pull request description:
The current ChaCha20 implementation does not support message encryption (it can only output the keystream which is sufficient for the RNG).
This PR adds the actual XORing of the `plaintext` with the `keystream` in order to return the desired `ciphertext`.
Required for v2 message transport protocol.
ACKs for commit 2dfe27:
jnewbery:
Looks good. utACK 2dfe275171.
jnewbery:
utACK 2dfe275171
sipa:
utACK 2dfe275171
ryanofsky:
utACK 2dfe275171. Changes since last review are just renaming the Crypt method, adding comments, and simplifying the benchmark.
Tree-SHA512: 84bb234da2ca9fdc44bc29a786d9dd215520f81245270c1aef801ef66b6091b7793e2eb38ad6dbb084925245065c5dce9e5582f2d0fa220ab3e182d43412d5b5
e9d5e97561 Poly1305: tolerate the intentional unsigned wraparound in poly1305.cpp (Jonas Schnelli)
b34bf302f2 Add Poly1305 bench (Jonas Schnelli)
03be7f48fa Add Poly1305 implementation (Jonas Schnelli)
Pull request description:
This adds a currently unused Poly1305 implementation including test vectors from RFC7539.
Required for BIP151 (and related to #15512).
Tree-SHA512: f8c1ad2f686b980a7498ca50c517e2348ac7b1fe550565156f6c2b20faf764978e4fa6b5b1c3777a16e7a12e2eca3fb57a59be9c788b00d4358ee80f2959edb1
fa38535130 bench: Benchmark MempoolToJSON (MarcoFalke)
fa5dc3534b rpc: Pass mempool into MempoolToJSON (MarcoFalke)
Pull request description:
This is used in production (e.g. https://jochen-hoenicke.de/queue/#0,24h), so add a benchmark to avoid making it even slower.
Related:
* "getrawmempool true RPC call is O(n^2)" #14765
Tree-SHA512: da09d2e54ee261af8671152f97f863cf1acd7a6adc6578e94046b1ec9e647a670c67499760ef765254f65522dfdf773c3c8729006fa2d63ccb6d53166bafc425
This also changes the uiInterface.LoadWallet signal argument type from
shared_ptr<CWallet> to unique_ptr<interfaces::Wallet> because CWallet is an
internal wallet class that shouldn't be used in non-wallet code (and also can't
be passed across process boundaries).
This commit does not change behavior.
189cf35f3e Add simple bech32 benchmarks (Karl-Johan Alm)
Pull request description:
This PR adds benchmarks to `Encode()`/`Decode()`.
The benchmark commit is duplicated in #13632.
Tree-SHA512: 102a193e4af58c9cb23c66d3dc7e174aa6328edab0ed74f92deb7804db5c3d0601807b3e25a5472b5c72d6113cde0dbc9976315644671a8f14ecf349967dbaaa
Most includers just wanted to react to pending shutdown.
This isolates access to `fRequestShutdown` and limits access to the shutdown
api functions, including the new `AbortShutdown` for setting it to `false`.
Note I originally called `AbortShutdown` `CancelShutdown` but that name was
already taken by winuser.h
https://travis-ci.org/bitcoin/bitcoin/jobs/386913329
This change also triggered a build error in bench. Fixing it required moving LIBBITCOIN_SERVER after LIBBITCOIN_WALLET in bench_bench_bitcoin_LDADD To make
server definitions in src/net.cpp available to wallet methods in
src/wallet/wallet.cpp. Specifically, solving:
libbitcoin_wallet.a(libbitcoin_wallet_a-wallet.o): In function `CWalletTx::RelayWalletTransaction(CConnman*)':
wallet.cpp:(.text+0x3f0e): undefined reference to `CConnman::NodeFullyConnected(CNode const*)'
collect2: error: ld returned 1 exit status
https://travis-ci.org/bitcoin/bitcoin/jobs/392133581
Need for remaining init.h includes confirmed via a thorough search with a more
specific regex:
\bInterrupt\(\)|\bShutdown\(\)|\bInitLogging\(\)|\bInitParameterInteraction\(\)|\bAppInitBasicSetup\(\)|\bAppInitParameterInteraction\(\)|\bAppInitSanityChecks\(\)|\bAppInitLockDataDirectory\(\)|\bAppInitMain\(\)|\bSetupServerArgs\(\)|\bLicenseInfo\(\)|g_wallet_init_interface|init.h
e56771365b Do not use uppercase characters in source code filenames (practicalswift)
419a1983ca docs: Add a note about the source code filename naming convention (practicalswift)
Pull request description:
Add a note about the source code filename naming convention.
Tree-SHA512: 8d329bd9e19bcd26e74b0862fb0bc2369b46095dbd3e69d34859908632763abd7c3d00ccc44ee059772ad4bae4460c2bcc1c0e22fd9d8876d57e5fcd346cea4b
