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16a6531ac2
I recently went on a longer flight and started profiling the geth block
production pipeline.
This PR contains a bunch of individual fixes split into separate
commits.
I can drop some if necessary.
Benchmarking is not super easy, the benchmark I wrote is a bit
non-deterministic.
I will try to write a better benchmark later
```
goos: linux
goarch: amd64
pkg: github.com/ethereum/go-ethereum/miner
cpu: Intel(R) Core(TM) Ultra 7 155U
│ /tmp/old.txt │ /tmp/new.txt │
│ sec/op │ sec/op vs base │
BuildPayload-14 141.5µ ± 3% 146.0µ ± 6% ~ (p=0.346 n=200)
│ /tmp/old.txt │ /tmp/new.txt │
│ B/op │ B/op vs base │
BuildPayload-14 188.2Ki ± 4% 177.4Ki ± 4% -5.71% (p=0.018 n=200)
│ /tmp/old.txt │ /tmp/new.txt │
│ allocs/op │ allocs/op vs base │
BuildPayload-14 2.703k ± 4% 2.453k ± 5% -9.25% (p=0.000 n=200)
```
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| .. | ||
| doc.go | ||
| env.go | ||
| runtime.go | ||
| runtime_example_test.go | ||
| runtime_fuzz_test.go | ||
| runtime_test.go | ||