Multiply tx len and base fee component by max number of remarks per block, in the fees calculation of congested_chain_simulation test

[ghzlatarev]

Signed-off-by: ghzlatarev ghzlatarev@gmail.com

Description

closes: #530

• Ad the tx len component to the fees calculation of congested_chain_simulation because when Apply WeightToFeePolynomials to pallet_transaction_payment's length fee paritytech/substrate#10785 lands in 0.9.18 it might not be so negligible to ignore. It adds $500 to the result cost.
• Calculate a rough amount for maximum remarks in a TX and multiply the len and base_weight components by that amount.
• The base component being multiplied by the number of extrinsics makes about 10x difference to the result cost, so we're still over our target cost of $250k. Currently costs ~$550k to congest the network on day 1

---

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• Updated relevant documentation in the code.
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• If runtime changes, need to update the version numbers properly:
  • authoring_version: The version of the authorship interface. An authoring node will not attempt to author blocks unless this is equal to its native runtime.
  • spec_version: The version of the runtime specification. A full node will not attempt to use its native runtime in substitute for the on-chain Wasm runtime unless all of spec_name, spec_version, and authoring_version are the same between Wasm and native.
  • impl_version: The version of the implementation of the specification. Nodes are free to ignore this; it serves only as an indication that the code is different; as long as the other two versions are the same then while the actual code may be different, it is nonetheless required to do the same thing. Non-consensus-breaking optimizations are about the only changes that could be made which would result in only the impl_version changing.
  • transaction_version: The version of the extrinsics interface. This number must be updated in the following circumstances: extrinsic parameters (number, order, or types) have been changed; extrinsics or pallets have been removed; or the pallet order in the construct_runtime! macro or extrinsic order in a pallet has been changed. You can run the metadata_diff.yml workflow for help. If this number is updated, then the spec_version must also be updated
• Verify benchmarks & weights have been updated for any modified runtime logics
• If importing a new pallet, choose a proper module index for it, and allow it in BaseFilter. Ensure every extrinsic works from front-end. If there's corresponding tool, ensure both work for each other.
• If needed, update our Javascript/Typescript APIs. These APIs are officially used by exchanges or community developers.
• If modifying existing runtime storage items, make sure to implement storage migrations for the runtime and test them with try-runtime. This includes migrations inherited from upstream changes, and you can search the diffs for modifications of #[pallet::storage] items to check for any.

[Garandor]

LGTM!

[Dengjianping]

Does it affect the congestion? Worse or better?

[ghzlatarev]

Does it affect the congestion? Worse or better?

The length component doesn't add much. Around $500 at the end of the day.
But the base fee being calculated for each extrinsic makes a big difference. Around 10x to the daily cost, which is ok because we're still over the target $250k.
Right now the cost to congest the network is ~$550k

[Dengjianping]

LGTM!