mirror of https://github.com/pezkuwichain/pezkuwi-subxt.git synced 2026-07-03 22:47:25 +00:00

Files

T

Vincent Geddes 22d5b80d44 Add a linear fee multiplier (#127 ) (#3790 )

Bridging fees are calculated using a static ETH/DOT exchange rate that
can deviate significantly from the real-world exchange rate. We
therefore need to add a safety margin to the fee so that users almost
aways cover the cost of relaying.

# FAQ

> Why introduce a `multiplier` parameter instead of configuring an
exchange rate which already has a safety factor applied?

When converting from ETH to DOT, we need to _divide_ the multiplier by
the exchange rate, and to convert from DOT to ETH we need to _multiply_
the multiplier by the exchange rate.

> Other input parameters to the fee calculation can also deviate from
real-world values. These include substrate weights, gas prices, and so
on. Why does the multiplier introduced here not adjust those?

A single scalar multiplier won't be able to accommodate the different
volatilities efficiently. For example, gas prices are much more volatile
than exchange rates, and substrate weights hardly ever change.

So the pricing config relating to weights and gas prices should already
have some appropriate safety margin pre-applied.

# Detailed Changes:

* Added `multiplier` field to `PricingParameters`
* Outbound-queue fee is multiplied by `multiplier`
* This `multiplier` is synced to the Ethereum side
* Improved Runtime API for calculating outbound-queue fees. This API
makes it much easier to for configure parts of the system in preparation
for launch.
* Improve and clarify code documentation

Upstreamed from https://github.com/Snowfork/polkadot-sdk/pull/127

---------

Co-authored-by: Clara van Staden <claravanstaden64@gmail.com>
Co-authored-by: Adrian Catangiu <adrian@parity.io>

2024-03-22 11:52:51 +00:00

chain-specs

Adding LF's bootnodes to relay and system chains (#3514 )

2024-03-22 00:07:24 +00:00

common

Removes as [disambiguation_path] from derive_impl usage (#3652 )

2024-03-15 07:46:09 +00:00

integration-tests/emulated

Improve Penpal runtime + emulated tests (#3543 )

2024-03-14 10:29:24 +00:00

pallets

removed pallet::getter usage from cumulus pallets (#3471 )

2024-03-18 19:19:20 +00:00

runtimes

Add a linear fee multiplier (#127 ) (#3790 )

2024-03-22 11:52:51 +00:00

README.md

Minor update to Readme - Statemint section (#2078 )

2023-01-11 15:25:23 +00:00

README.md

Parachains

This directory is the home of Parity-developed parachain runtimes. This directory is runtime focused, and does not include builds of parachain nodes.

The general internal structure is:

chain-specs: Chain specs for the runtimes contained in its sibling dir runtimes.
common: Common configurations, impls, etc. used by several parachain runtimes.
integration-tests: Integration tests to test parachain interactions via XCM.
pallets: FRAME pallets that are specific to parachains.
runtimes: The entry point for parachain runtimes.

System Parachains

The runtimes directory includes many, but is not limited to, system parachains. Likewise, not all system parachains are in this repo.

Releases

The project maintainers generally try to release a set of parachain runtimes for each Polkadot Relay Chain runtime release.