NOTE: The PR slightly changed, so this data might be slightly out of date (but overall, it's still indicative)
$ GOMAXPROCS=1 go test -cpu 1 -bench=BenchmarkPrecompiledEd25519Verify -benchmem
goos: linux
goarch: amd64
pkg: github.com/ethereum/go-ethereum/core/vm
BenchmarkPrecompiledEd25519Verify/valid_input-Gas=1584 17599 67400 ns/op 1656 B/op 17 allocs/op
BenchmarkPrecompiledEd25519Verify/valid_input-Gas=1608 17914 67768 ns/op 1656 B/op 17 allocs/op