Benchmark results

decode-interpret-wal/unsharded
                        time:   [439.01 ms 439.23 ms 439.48 ms]
                        thrpt:  [291.25 MiB/s 291.42 MiB/s 291.56 MiB/s]
decode-interpret-wal/8/8-shards
                        time:   [934.73 ms 935.45 ms 936.41 ms]
                        thrpt:  [136.69 MiB/s 136.83 MiB/s 136.94 MiB/s]
decode-interpret-wal/4/8-shards
                        time:   [646.55 ms 646.72 ms 646.89 ms]
                        thrpt:  [197.87 MiB/s 197.92 MiB/s 197.97 MiB/s]
decode-interpret-wal/2/8-shards
                        time:   [487.38 ms 487.56 ms 487.76 ms]
                        thrpt:  [262.43 MiB/s 262.53 MiB/s 262.63 MiB/s]