Benchmark
Verifying RPC results introduces computational overhead, but in practice the cost is often significantly lower than expected. Proof verification typically requires only a few hash computations and a single BLS signature check, which is negligible compared to the cost of executing or syncing full node data.
Payload Size
The size of a payload depend on the method. Here are some examples comparing the payload of colibri.stateless (using ssz) to a direct json-response from a RPC-provider:
eth_getBlockByNumer
108 kB
403 kB
eth_getTransactionByHash (Deploy)
24 kB
47 kB
eth_getTransactionByHash (Transfer)
1.5 kB
0.9 kB
eth_getTransactionReceipt
1.5 kB
1.6 kB
eth_getLogs
53 kB
15 kB
eth_call ( ERC20.balanceOf)
17 kB
0.1 kB
So, while a complete block is often smaller than the corresponding JSON-RPC data (because colibri.stateless uses the binary SSZ-encoded execution payload from the beacon chain and extracts it directly), other methods such as eth_call require additional Merkle proofs for every accessed storage value before the EVM execution can be verified.
Verification overhead
Verification usualy is not a huge overhead. The most time consuming part is checking the BLS-Signature.
The times shown in the table represent the total time required to generate and verify each proof. RPC responses were read from the local filesystem to eliminate network latency effects. Numbers in brackets indicate the separate durations for proof creation and verification.
These benchmarks were obtained from tests performed on an Apple M3 Max system:
eth_getBlockByNumber
24 ms (5+19)
46 ms (5+41)
eth_getTransactionByHash
16 ms (3+13)
43 ms (8+35)
eth_getTransactionReceipt
45 ms (43+2)
68 ms (33+35)
eth_getLogs
19 ms (17+2)
47 ms (12+35)
eth_call ( ERC20.balanceOf)
12 ms (10+2)
51 ms (11+40)
Code size
Using CMake-defines, the code size can be adjusted by including only the required components. This is particularly relevant for embedded devices, where memory and storage resources are limited.
Here are some examples of code sizes you may expect:
FullImage for embedded Device(RTOS) (including OS) only for verifying tx receipts
200 kB
35kB
1.7kB
236 kB
Native build on Mac (ARM) with full evm and curl
281 kB
177kB
1.3kB
460kB
Native build on Mac (ARM) only for tx verification
122 kB
64kB
1.3kB
188kB
WASM (all features)
660 kB (WASM)
-
-
980 kB (including js-glue code)
Last updated