A tx blob verification benchmark for eip 4844

bench.txt

'trustless' setup in progress, please wait
done
goos: freebsd
goarch: amd64
pkg: gballet.eu/testkzg
cpu: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
BenchmarkPolyEval-8   	      24	  42047844 ns/op	 1008948 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      22	  49744581 ns/op	 1008948 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      25	  44590933 ns/op	 1008944 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      24	  51210360 ns/op	 1008948 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      25	  42969705 ns/op	 1008944 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      27	  43452784 ns/op	 1008947 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      26	  45130464 ns/op	 1008944 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      25	  54170210 ns/op	 1008944 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      19	  60885720 ns/op	 1008944 B/op	    8300 allocs/op
BenchmarkPolyEval-8   	      18	  62286777 ns/op	 1008944 B/op	    8300 allocs/op
PASS
ok  	gballet.eu/testkzg	14.526s

go.mod

module gballet.eu/testkzg

go 1.17

require (
	github.com/herumi/bls-eth-go-binary v0.0.0-20210302070600-dfaa902c7773 // indirect
	github.com/holiman/uint256 v1.1.1 // indirect
	github.com/kilic/bls12-381 v0.1.1-0.20210208205449-6045b0235e36 // indirect
	github.com/protolambda/go-kzg v0.0.0-20220220065500-36404333406f // indirect
	golang.org/x/sys v0.0.0-20210305034016-7844c3c200c3 // indirect
)

kzg_poly_eval.go

package main

import (
	"fmt"
	"math/rand"

	"github.com/protolambda/go-kzg"
	"github.com/protolambda/go-kzg/bls"
)

const FieldElementsPerBlob = 4096

// testPoly creates a polynomial with random coefficients
func testPoly(n int) []bls.Fr {
	var tmp [32]byte
	polynomial := make([]bls.Fr, n, n)
	for i := 0; i < n; i++ {
		rand.Read(tmp[:])
		bls.FrFrom32(&polynomial[i], tmp)
	}
	return polynomial
}

func main() {
	polynomial := testPoly(FieldElementsPerBlob)
	fmt.Println("created polynomial")
	fmt.Println(ks.CommitToPoly(polynomial))
}

var ks *kzg.KZGSettings

func init() {
	fmt.Println("'trustless' setup in progress, please wait")
	fs := kzg.NewFFTSettings(12)
	s1, s2 := kzg.GenerateTestingSetup("1927409816240961209460912649124", FieldElementsPerBlob+1)
	ks = kzg.NewKZGSettings(fs, s1, s2)
	fmt.Println("done")
}

kzg_poly_eval_test.go

package main

import "testing"

func BenchmarkPolyEval(b *testing.B) {
	polynomial := testPoly(FieldElementsPerBlob)

	b.ReportAllocs()
	b.ResetTimer()

	for i := 0; i < b.N; i++ {
		ks.CommitToPoly(polynomial)
	}
}