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Enable async backing for system parachains #266

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Enable async backing for system parachains #266

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3f47e2c
Enable async backing
s0me0ne-unkn0wn Apr 6, 2024
700f17b
Add changelog entry
s0me0ne-unkn0wn Apr 6, 2024
d12347a
Fix Encointer test
s0me0ne-unkn0wn Apr 6, 2024
2f3a1cc
Apply transient fix for bridge hub tests
s0me0ne-unkn0wn Apr 8, 2024
d0d660f
Update `Cargo.lock`
s0me0ne-unkn0wn Apr 8, 2024
815ce7e
Remove unneeded comments
s0me0ne-unkn0wn Apr 9, 2024
a536437
Fix feature propagation
s0me0ne-unkn0wn Apr 9, 2024
2f905db
Merge remote-tracking branch 'upstream/main' into enable-async-backin…
s0me0ne-unkn0wn Apr 19, 2024
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8 changes: 7 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -4,10 +4,16 @@ Changelog for the runtimes governed by the Polkadot Fellowship.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).

## Unreleased
## [Unreleased]

### Added

- Add `pallet-vesting` to Asset Hubs ([polkadot-fellows/runtimes#269](https://github.com/polkadot-fellows/runtimes/pull/269))

### Changed

- Enable async backing for system parachains ([polkadot-fellows/runtimes#266](https://github.com/polkadot-fellows/runtimes/pull/266))

## [1.2.1] 09.04.2024

### Changed
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4 changes: 4 additions & 0 deletions Cargo.lock
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4 changes: 2 additions & 2 deletions system-parachains/asset-hubs/asset-hub-kusama/src/lib.rs
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Expand Up @@ -198,7 +198,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
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is this a tmp value or is it going to be zero?

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IIUC, we don't need to set the minimum period anymore. With async backing at higher velocities, we may produce more blocks per slot, and nothing stops us from producing more than two blocks per slot, so this limit doesn't make sense, and I set it to zero here. But maybe some of the senior fellows will correct me.

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If that's the case then I need to figure out how to deal with it on chopsticks

type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -777,7 +777,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

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4 changes: 2 additions & 2 deletions system-parachains/asset-hubs/asset-hub-polkadot/src/lib.rs
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Expand Up @@ -216,7 +216,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -703,7 +703,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

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4 changes: 4 additions & 0 deletions system-parachains/bridge-hubs/bridge-hub-kusama/primitives/Cargo.toml
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Expand Up @@ -18,10 +18,12 @@ system-parachains-constants = { path = "../../../constants", default-features =
bp-bridge-hub-cumulus = { workspace = true }
bp-runtime = { workspace = true }
bp-messages = { workspace = true }
polkadot-primitives = { workspace = true }
snowbridge-core = { workspace = true }

# Substrate Based Dependencies
frame-support = { workspace = true }
frame-system = { workspace = true }
sp-api = { workspace = true }
sp-runtime = { workspace = true }
sp-std = { workspace = true }
Expand All @@ -36,7 +38,9 @@ std = [
"bp-messages/std",
"bp-runtime/std",
"frame-support/std",
"frame-system/std",
"kusama-runtime-constants/std",
"polkadot-primitives/std",
"polkadot-runtime-constants/std",
"snowbridge-core/std",
"sp-api/std",
Expand Down
32 changes: 31 additions & 1 deletion system-parachains/bridge-hubs/bridge-hub-kusama/primitives/src/lib.rs
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Expand Up @@ -20,16 +20,46 @@
#![cfg_attr(not(feature = "std"), no_std)]

pub use bp_bridge_hub_cumulus::*;

use bp_messages::*;
use bp_runtime::{
decl_bridge_finality_runtime_apis, decl_bridge_messages_runtime_apis, Chain, ChainId, Parachain,
};
use frame_support::{
dispatch::DispatchClass,
parameter_types,
sp_runtime::{MultiAddress, MultiSigner},
weights::constants,
};
use frame_system::limits;
use sp_runtime::{FixedPointNumber, FixedU128, RuntimeDebug, Saturating};

const MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING: Weight = Weight::from_parts(
constants::WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2),
polkadot_primitives::MAX_POV_SIZE as u64,
);

parameter_types! {
pub BlockWeightsForAsyncBacking: limits::BlockWeights = limits::BlockWeights::builder()
.base_block(BlockExecutionWeight::get())
.for_class(DispatchClass::all(), |weights| {
weights.base_extrinsic = ExtrinsicBaseWeight::get();
})
.for_class(DispatchClass::Normal, |weights| {
weights.max_total = Some(NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING);
})
.for_class(DispatchClass::Operational, |weights| {
weights.max_total = Some(MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING);
// Operational transactions have an extra reserved space, so that they
// are included even if block reached `MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING`.
weights.reserved = Some(
MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING - NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING,
);
})
.avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
.build_or_panic();
}

/// BridgeHubKusama parachain.
#[derive(RuntimeDebug)]
pub struct BridgeHubKusama;
Expand All @@ -52,7 +82,7 @@ impl Chain for BridgeHubKusama {
}

fn max_extrinsic_weight() -> Weight {
BlockWeights::get()
BlockWeightsForAsyncBacking::get()
.get(DispatchClass::Normal)
.max_extrinsic
.unwrap_or(Weight::MAX)
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2 changes: 1 addition & 1 deletion system-parachains/bridge-hubs/bridge-hub-kusama/src/bridge_to_polkadot_config.rs
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Expand Up @@ -399,7 +399,7 @@ mod tests {
>(AssertCompleteBridgeConstants {
this_chain_constants: AssertChainConstants {
block_length: bp_bridge_hub_kusama::BlockLength::get(),
block_weights: bp_bridge_hub_kusama::BlockWeights::get(),
block_weights: bp_bridge_hub_kusama::BlockWeightsForAsyncBacking::get(),
},
messages_pallet_constants: AssertBridgeMessagesPalletConstants {
max_unrewarded_relayers_in_bridged_confirmation_tx:
Expand Down
4 changes: 2 additions & 2 deletions system-parachains/bridge-hubs/bridge-hub-kusama/src/lib.rs
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Expand Up @@ -258,7 +258,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -441,7 +441,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

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4 changes: 4 additions & 0 deletions system-parachains/bridge-hubs/bridge-hub-polkadot/primitives/Cargo.toml
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Expand Up @@ -18,10 +18,12 @@ system-parachains-constants = { path = "../../../constants", default-features =
bp-bridge-hub-cumulus = { workspace = true }
bp-runtime = { workspace = true }
bp-messages = { workspace = true }
polkadot-primitives = { workspace = true }
snowbridge-core = { workspace = true }

# Substrate Based Dependencies
frame-support = { workspace = true }
frame-system = { workspace = true }
sp-api = { workspace = true }
sp-runtime = { workspace = true }
sp-std = { workspace = true }
Expand All @@ -36,7 +38,9 @@ std = [
"bp-messages/std",
"bp-runtime/std",
"frame-support/std",
"frame-system/std",
"kusama-runtime-constants/std",
"polkadot-primitives/std",
"polkadot-runtime-constants/std",
"sp-api/std",
"sp-runtime/std",
Expand Down
31 changes: 29 additions & 2 deletions system-parachains/bridge-hubs/bridge-hub-polkadot/primitives/src/lib.rs
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Expand Up @@ -24,9 +24,36 @@ use bp_messages::*;
use bp_runtime::{
decl_bridge_finality_runtime_apis, decl_bridge_messages_runtime_apis, Chain, ChainId, Parachain,
};
use frame_support::dispatch::DispatchClass;
use frame_support::{dispatch::DispatchClass, parameter_types, weights::constants};
use frame_system::limits;
use sp_runtime::{FixedPointNumber, FixedU128, RuntimeDebug, Saturating};

const MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING: Weight = Weight::from_parts(
constants::WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2),
polkadot_primitives::MAX_POV_SIZE as u64,
);

parameter_types! {
pub BlockWeightsForAsyncBacking: limits::BlockWeights = limits::BlockWeights::builder()
.base_block(BlockExecutionWeight::get())
.for_class(DispatchClass::all(), |weights| {
weights.base_extrinsic = ExtrinsicBaseWeight::get();
})
.for_class(DispatchClass::Normal, |weights| {
weights.max_total = Some(NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING);
})
.for_class(DispatchClass::Operational, |weights| {
weights.max_total = Some(MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING);
// Operational transactions have an extra reserved space, so that they
// are included even if block reached `MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING`.
weights.reserved = Some(
MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING - NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT_FOR_ASYNC_BACKING,
);
})
.avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
.build_or_panic();
}

/// BridgeHubPolkadot parachain.
#[derive(RuntimeDebug)]
pub struct BridgeHubPolkadot;
Expand All @@ -49,7 +76,7 @@ impl Chain for BridgeHubPolkadot {
}

fn max_extrinsic_weight() -> Weight {
BlockWeights::get()
BlockWeightsForAsyncBacking::get()
.get(DispatchClass::Normal)
.max_extrinsic
.unwrap_or(Weight::MAX)
Expand Down
2 changes: 1 addition & 1 deletion system-parachains/bridge-hubs/bridge-hub-polkadot/src/bridge_to_kusama_config.rs
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Expand Up @@ -395,7 +395,7 @@ mod tests {
>(AssertCompleteBridgeConstants {
this_chain_constants: AssertChainConstants {
block_length: bp_bridge_hub_polkadot::BlockLength::get(),
block_weights: bp_bridge_hub_polkadot::BlockWeights::get(),
block_weights: bp_bridge_hub_polkadot::BlockWeightsForAsyncBacking::get(),
},
messages_pallet_constants: AssertBridgeMessagesPalletConstants {
max_unrewarded_relayers_in_bridged_confirmation_tx:
Expand Down
4 changes: 2 additions & 2 deletions system-parachains/bridge-hubs/bridge-hub-polkadot/src/lib.rs
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Expand Up @@ -259,7 +259,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -442,7 +442,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

Expand Down
4 changes: 2 additions & 2 deletions system-parachains/collectives/collectives-polkadot/src/lib.rs
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Expand Up @@ -188,7 +188,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -480,7 +480,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

Expand Down
2 changes: 1 addition & 1 deletion system-parachains/constants/src/kusama.rs
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Expand Up @@ -17,7 +17,7 @@
pub mod consensus {
/// Maximum number of blocks simultaneously accepted by the Runtime, not yet included
/// into the relay chain.
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 1;
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 3;
/// How many parachain blocks are processed by the relay chain per parent. Limits the
/// number of blocks authored per slot.
pub const BLOCK_PROCESSING_VELOCITY: u32 = 1;
Expand Down
6 changes: 3 additions & 3 deletions system-parachains/constants/src/lib.rs
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Expand Up @@ -32,7 +32,7 @@ use sp_runtime::Perbill;
/// slot_duration()`.
///
/// Change this to adjust the block time.
pub const MILLISECS_PER_BLOCK: u64 = 12000;
pub const MILLISECS_PER_BLOCK: u64 = 6000;
pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;

// Time is measured by number of blocks.
Expand All @@ -47,9 +47,9 @@ pub const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(5);
/// Operational extrinsics.
pub const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);

/// We allow for 0.5 seconds of compute with a 6 second average block time.
/// We allow for 2 seconds of compute with a 6 second average block time.
pub const MAXIMUM_BLOCK_WEIGHT: Weight = Weight::from_parts(
WEIGHT_REF_TIME_PER_SECOND.saturating_div(2),
WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2),
polkadot_primitives::MAX_POV_SIZE as u64,
);

Expand Down
2 changes: 1 addition & 1 deletion system-parachains/constants/src/polkadot.rs
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Expand Up @@ -39,7 +39,7 @@ pub mod account {
pub mod consensus {
/// Maximum number of blocks simultaneously accepted by the Runtime, not yet included
/// into the relay chain.
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 1;
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 3;
/// How many parachain blocks are processed by the relay chain per parent. Limits the
/// number of blocks authored per slot.
pub const BLOCK_PROCESSING_VELOCITY: u32 = 1;
Expand Down
4 changes: 2 additions & 2 deletions system-parachains/coretime/coretime-kusama/src/lib.rs
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Expand Up @@ -202,7 +202,7 @@ impl pallet_timestamp::Config for Runtime {
/// A timestamp: milliseconds since the unix epoch.
type Moment = u64;
type OnTimestampSet = Aura;
type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
type MinimumPeriod = ConstU64<0>;
type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

Expand Down Expand Up @@ -366,7 +366,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = ConstU32<100_000>;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

Expand Down
10 changes: 5 additions & 5 deletions system-parachains/encointer/src/lib.rs
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Expand Up @@ -275,7 +275,7 @@ impl frame_system::Config for Runtime {
}

parameter_types! {
pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
pub const MinimumPeriod: u64 = 0;
}

impl pallet_timestamp::Config for Runtime {
Expand Down Expand Up @@ -580,7 +580,7 @@ impl pallet_aura::Config for Runtime {
type AuthorityId = AuraId;
type DisabledValidators = ();
type MaxAuthorities = MaxAuthorities;
type AllowMultipleBlocksPerSlot = ConstBool<false>;
type AllowMultipleBlocksPerSlot = ConstBool<true>;
type SlotDuration = ConstU64<SLOT_DURATION>;
}

Expand Down Expand Up @@ -1153,7 +1153,7 @@ mod system_parachains_constants {
/// slot_duration()`.
///
/// Change this to adjust the block time.
pub const MILLISECS_PER_BLOCK: u64 = 12000;
pub const MILLISECS_PER_BLOCK: u64 = 6000;
pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;

// Time is measured by number of blocks.
Expand All @@ -1170,7 +1170,7 @@ mod system_parachains_constants {

/// We allow for 0.5 seconds of compute with a 6 second average block time.
pub const MAXIMUM_BLOCK_WEIGHT: Weight = Weight::from_parts(
WEIGHT_REF_TIME_PER_SECOND.saturating_div(2),
WEIGHT_REF_TIME_PER_SECOND.saturating_mul(2),
polkadot_primitives::MAX_POV_SIZE as u64,
);

Expand All @@ -1179,7 +1179,7 @@ mod system_parachains_constants {
pub mod consensus {
/// Maximum number of blocks simultaneously accepted by the Runtime, not yet included
/// into the relay chain.
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 1;
pub const UNINCLUDED_SEGMENT_CAPACITY: u32 = 3;
/// How many parachain blocks are processed by the relay chain per parent. Limits the
/// number of blocks authored per slot.
pub const BLOCK_PROCESSING_VELOCITY: u32 = 1;
Expand Down
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