Increase authoring duration to 2s and block weight limit x4

[tmpolaczyk]

Block authoring duration: 0.5s -> 2s
Frontier template gas limit: 15M -> 60M
Substrate block weight limit: 0.5e12 -> 2e12

paritytech/polkadot-sdk#5195

[github-actions]

Coverage Report

(master)

@@                  Coverage Diff                   @@
##           master   tomasz-authoring-2s     +/-   ##
======================================================
  Coverage   66.63%                66.63%   0.00%     
  Files         261                   261             
- Lines       44717                 44716      -1     
======================================================
  Hits        29794                 29794             
- Misses      14923                 14922      -1     

Files Changed	Coverage
/node/src/service.rs	23.47% (+0.04%)	🔼

Coverage generated Thu Aug 1 10:16:03 UTC 2024

[tmpolaczyk]

I see this comment in many places:

/// We allow for 0.5 of a second of compute with a 12 second average block time.
const MAXIMUM_BLOCK_WEIGHT: Weight = Weight::from_parts(
    WEIGHT_REF_TIME_PER_SECOND.saturating_div(2),
    cumulus_primitives_core::relay_chain::MAX_POV_SIZE as u64,
);

I guess we want to modify the weight so that it is equivalent to 2s of compute with 6s average block time?

[girazoki]

Yes I think we can

[girazoki]

Although before we do it, let's just see what other runtimes are doing

[girazoki]

And here I have mixed opinions. I see that by default polkadot has 0.5s:

• https://github.com/paritytech/polkadot-sdk/blob/7d0aa89653d5073081a949eca1de2ca2d42a9e98/cumulus/parachains/common/src/lib.rs#L107

• however in the template, they have 2s: https://github.com/paritytech/polkadot-sdk/blob/7d0aa89653d5073081a949eca1de2ca2d42a9e98/substrate/bin/node/runtime/src/lib.rs#L214

[tmpolaczyk]

Let's try and see if anything breaks