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[doc] Update and extend benchmarking.md

This commit is contained in:
Antoine Riard 2019-08-02 12:11:04 -04:00
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@ -2,10 +2,17 @@ Benchmarking
============
Bitcoin Core has an internal benchmarking framework, with benchmarks
for cryptographic algorithms (e.g. SHA1, SHA256, SHA512, RIPEMD160), as well as the rolling bloom filter.
for cryptographic algorithms (e.g. SHA1, SHA256, SHA512, RIPEMD160, Poly1305, ChaCha20), rolling bloom filter, coins selection,
thread queue, wallet balance.
Running
---------------------
For benchmarks purposes you only need to compile `bitcoin_bench`. Beware of configuring without `--enable-debug` as this would impact
benchmarking by unlatching log printers and lock analysis.
make -C src bench_bitcoin
After compiling bitcoin-core, the benchmarks can be run with:
src/bench/bench_bitcoin
@ -13,43 +20,29 @@ After compiling bitcoin-core, the benchmarks can be run with:
The output will look similar to:
```
# Benchmark, evals, iterations, total, min, max, median
Base58CheckEncode, 5, 320000, 120.772, 7.49351e-05, 7.59374e-05, 7.54759e-05
Base58Decode, 5, 800000, 122.833, 3.0467e-05, 3.11732e-05, 3.06304e-05
Base58Encode, 5, 470000, 137.094, 5.81061e-05, 5.85109e-05, 5.84462e-05
BenchLockedPool, 5, 530, 34.2023, 0.0128247, 0.0129613, 0.0129026
CCheckQueueSpeedPrevectorJob, 5, 1400, 26.1762, 0.00365048, 0.00388629, 0.00367108
CCoinsCaching, 5, 170000, 48.1074, 5.60229e-05, 5.72316e-05, 5.66214e-05
CoinSelection, 5, 650, 34.6426, 0.0105801, 0.0107699, 0.010664
DeserializeAndCheckBlockTest, 5, 160, 39.2084, 0.0483662, 0.0494199, 0.0490138
DeserializeBlockTest, 5, 130, 23.8129, 0.0357731, 0.0373763, 0.0365858
FastRandom_1bit, 5, 440000000, 38.1609, 1.72974e-08, 1.73882e-08, 1.73478e-08
FastRandom_32bit, 5, 110000000, 72.8237, 1.29992e-07, 1.37014e-07, 1.30115e-07
MempoolEviction, 5, 41000, 89.8883, 0.000432748, 0.000446857, 0.000438483
PrevectorClear, 5, 5600, 47.9229, 0.00169952, 0.0017455, 0.00170315
PrevectorDestructor, 5, 5700, 44.5498, 0.0015561, 0.00156977, 0.00156469
RIPEMD160, 5, 440, 135.988, 0.0615496, 0.062268, 0.0617779
RollingBloom, 5, 1500000, 36.5109, 4.80961e-06, 4.97463e-06, 4.85811e-06
SHA1, 5, 570, 51.808, 0.018065, 0.0182623, 0.0181865
SHA256, 5, 340, 8.31841, 0.00483231, 0.00499803, 0.00485486
SHA256_32b, 5, 4700000, 10.469, 4.43441e-07, 4.47611e-07, 4.45223e-07
SHA512, 5, 330, 33.3408, 0.02017, 0.0202554, 0.0201921
SipHash_32b, 5, 40000000, 38.7088, 1.91103e-07, 1.96998e-07, 1.93792e-07
Sleep100ms, 5, 10, 5.01062, 0.100131, 0.100368, 0.100147
Trig, 5, 12000000, 5.95494, 9.78115e-08, 1.04354e-07, 9.80682e-08
VerifyScriptBench, 5, 6300, 9.02493, 0.000285566, 0.000288433, 0.000286175
AssembleBlock, 5, 700, 1.79954, 0.000510913, 0.000517018, 0.000514497
...
```
Help
---------------------
`-?` will print a list of options and exit:
src/bench/bench_bitcoin -?
src/bench/bench_bitcoin --help
To print options like scaling factor or per-benchmark filter.
Notes
---------------------
More benchmarks are needed for, in no particular order:
- Script Validation
- CCoinDBView caching
- Coins database
- Memory pool
- Wallet coin selection
- Cuckoo Cache
- P2P throughput
Going Further
--------------------
To monitor Bitcoin Core performance more in depth (like reindex or IBD): https://github.com/chaincodelabs/bitcoinperf
To generate Flame Graphs for Bitcoin Core: https://github.com/eklitzke/bitcoin/blob/flamegraphs/doc/flamegraphs.md