[r3.4] db/state, txpool: benchmark fixes and bench flag improvements#20070
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AskAlexSharov merged 1 commit intorelease/3.4from Mar 23, 2026
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Two independent benchmark fixes. **`BenchmarkProcessRemoteTxns` panic**: mixed `b.Loop()` (Go 1.24+ API) for the benchmark loop with `b.N`-based pre-allocation for test data. On the first `runN` call `b.N=1`, so only 1 transaction is pre-created, then `b.Loop()` tries a second iteration and panics with `slice bounds out of range [:2] with capacity 1`. Fixed by switching back to `for i := 0; i < b.N; i++`. **`bench.loopv` split**: the shared flag was used in two benchmarks with semantically different meanings — CPU loop iterations in one, milliseconds of sleep in the other. These don't line up in magnitude: a value that makes sense for one (e.g. `100000` CPU iterations ≈ fast) is catastrophic for the other (`100000 ms = 100 seconds` sleep per iteration). With the default of `100000`, `BenchmarkDb_BeginFiles_Throughput` slept 100 seconds per iteration, completing only 1 iteration in a 112-second run. Split into `bench.cpu-iters` (default 1000) and `bench.sleep-ms` (default 5ms, matching the hardcoded value in `BenchmarkDb_BeginFiles_Throughput_IO`). --------- Co-authored-by: Alex Sharov <AskAlexSharov@gmail.com>
anacrolix
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AskAlexSharov,
sudeepdino008,
taratorio and
yperbasis
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AskAlexSharov
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Mar 23, 2026
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Backport of #19971 to release/3.4.
Includes benchmark fixes and bench flag improvements for
db/stateandtxpool.