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feat: relative treasury inflation #1740

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merged 10 commits into from
Feb 23, 2024
Merged

feat: relative treasury inflation #1740

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02b7fe6
feat: relative treasury inflation
wischli Feb 20, 2024
195b14a
refactor: apply benchmarking v2 to block rewards
wischli Feb 20, 2024
420b1d1
feat: add migration
wischli Feb 21, 2024
45a5b09
fix: build + clippy
wischli Feb 21, 2024
95dbeae
Update pallets/block-rewards/src/mock.rs
wischli Feb 22, 2024
7d95ced
Merge remote-tracking branch 'origin/main' into feat/relative-treasur…
wischli Feb 22, 2024
76cea1f
chore: minor fixes
wischli Feb 22, 2024
24bc318
refactor: remove max changes per session
wischli Feb 22, 2024
63d37d1
refactor: remove more redundant trait bounds
wischli Feb 23, 2024
add78d8
Merge remote-tracking branch 'origin/main' into feat/relative-treasur…
wischli Feb 23, 2024
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1 change: 1 addition & 0 deletions Cargo.lock
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24 changes: 20 additions & 4 deletions node/src/chain_spec.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,10 @@ use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
use sc_service::{ChainType, Properties};
use serde::{Deserialize, Serialize};
use sp_core::{crypto::UncheckedInto, sr25519, Encode, Pair, Public, H160};
use sp_runtime::traits::{IdentifyAccount, Verify};
use sp_runtime::{
traits::{IdentifyAccount, Verify},
FixedPointNumber,
};
use xcm::{
latest::MultiLocation,
prelude::{GeneralIndex, GeneralKey, PalletInstance, Parachain, X2, X3},
Expand All @@ -61,6 +64,7 @@ pub type DevelopmentChainSpec =

use altair_runtime::evm::AltairPrecompiles;
use centrifuge_runtime::evm::CentrifugePrecompiles;
use cfg_types::fixed_point::Rate;
use development_runtime::evm::DevelopmentPrecompiles;

/// Helper function to generate a crypto pair from seed
Expand Down Expand Up @@ -661,7 +665,11 @@ fn centrifuge_genesis(
.map(|(acc, _)| acc)
.collect(),
collator_reward: 8_325 * MILLI_CFG,
total_reward: 10_048 * CFG,
treasury_inflation_rate: Rate::saturating_from_rational(3, 100),
last_update: std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.expect("SystemTime before UNIX EPOCH!")
.as_secs(),
Comment on lines +669 to +672
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This would mean that each node using this genesis will have a different configuration (different time machines). Is it ok or should they have the exact initial configuration?

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Yes, thats the implication. However, this only affects new networks, i.e. either Development if it needs to be reset or otherwise local ones. Therefore, it shouldn't have an impact. If we make it static, the first treasury inflation reward will huge.

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But you're using the system clock, not the clock used on-chain (that changed each block by 12 secs). I guess we're okay with it.

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Good point but it should be fine here. It only affects the first treasury reward and should never affect live chains/production.

},
block_rewards_base: Default::default(),
base_fee: Default::default(),
Expand Down Expand Up @@ -756,7 +764,11 @@ fn altair_genesis(
.map(|(acc, _)| acc)
.collect(),
collator_reward: 98_630 * MILLI_AIR,
total_reward: 98_630 * MILLI_AIR * 100,
treasury_inflation_rate: Rate::saturating_from_rational(3, 100),
last_update: std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.expect("SystemTime before UNIX EPOCH!")
.as_secs(),
},
block_rewards_base: Default::default(),
collator_allowlist: Default::default(),
Expand Down Expand Up @@ -939,7 +951,11 @@ fn development_genesis(
.map(|(acc, _)| acc)
.collect(),
collator_reward: 8_325 * MILLI_CFG,
total_reward: 10_048 * CFG,
treasury_inflation_rate: Rate::saturating_from_rational(3, 100),
last_update: std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.expect("SystemTime before UNIX EPOCH!")
.as_secs(),
},
base_fee: Default::default(),
evm_chain_id: development_runtime::EVMChainIdConfig {
Expand Down
1 change: 1 addition & 0 deletions pallets/block-rewards/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ sp-std = { workspace = true }
frame-benchmarking = { workspace = true, optional = true }

[dev-dependencies]
cfg-mocks = { workspace = true, default-features = true }
orml-tokens = { workspace = true, default-features = true }
orml-traits = { workspace = true, default-features = true }
pallet-balances = { workspace = true, default-features = true }
Expand Down
105 changes: 67 additions & 38 deletions pallets/block-rewards/src/benchmarking.rs
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@@ -1,6 +1,6 @@
use cfg_primitives::CFG;
use cfg_types::tokens::CurrencyId;
use frame_benchmarking::{account, benchmarks, impl_benchmark_test_suite, whitelisted_caller};
use frame_benchmarking::v2::*;
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Thanks for updating the benchmarking version!

use frame_support::{
assert_ok,
traits::{fungibles::Inspect, Currency as CurrencyT},
Expand All @@ -14,56 +14,85 @@ use crate::{pallet::Config, Pallet as BlockRewards};
const REWARD: u128 = 1 * CFG;
const SEED: u32 = 0;

benchmarks! {
where_clause {
where
#[benchmarks(
where
T::Balance: From<u128>,
T::BlockNumber: From<u32> + One,
T::Weight: From<u32>,
<T as Config>::Currency: frame_support::traits::fungibles::Inspect<T::AccountId> + CurrencyT<T::AccountId>,
<T as Config>::Tokens: Inspect<T::AccountId> + CurrencyT<T::AccountId>,
<T as Config>::CurrencyId: From<CurrencyId>,
}
)]
mod benchmarks {
use super::*;

claim_reward {
let caller = whitelisted_caller();
let beneficiary: T::AccountId = account("collator", 0, SEED);
#[benchmark]
fn claim_reward() -> Result<(), BenchmarkError> {
let caller: T::AccountId = account("caller", 0, SEED);
let beneficiary: T::AccountId = account("collator", 0, SEED);

assert_ok!(BlockRewards::<T>::do_init_collator(&beneficiary));
assert_ok!(T::Rewards::reward_group(T::StakeGroupId::get(), REWARD.into()));
assert_ok!(T::Rewards::reward_group(
T::StakeGroupId::get(),
REWARD.into()
));
assert!(T::Rewards::is_ready(T::StakeGroupId::get()));
assert!(
!T::Rewards::compute_reward(
T::StakeCurrencyId::get(),
&beneficiary,
).unwrap().is_zero()
!T::Rewards::compute_reward(T::StakeCurrencyId::get(), &beneficiary,)
.unwrap()
.is_zero()
);
let before =
<T::Tokens as Inspect<T::AccountId>>::balance(CurrencyId::Native.into(), &beneficiary);

#[extrinsic_call]
claim_reward(RawOrigin::Signed(caller), beneficiary.clone());

let num_collators: u128 = BlockRewards::<T>::next_session_changes()
.collator_count
.unwrap_or(BlockRewards::<T>::active_session_data().collator_count)
.into();
// Does not get entire reward since another collator is auto-staked via genesis
// config
assert_eq!(
<T::Tokens as Inspect<T::AccountId>>::balance(CurrencyId::Native.into(), &beneficiary)
.saturating_sub(before),
(REWARD / (num_collators + 1)).into()
);
let before = <T as Config>::Currency::balance(CurrencyId::Native.into(), &beneficiary);

}: _(RawOrigin::Signed(caller), beneficiary.clone())
verify {
let num_collators: u128 = BlockRewards::<T>::next_session_changes().collator_count.unwrap_or(
BlockRewards::<T>::active_session_data().collator_count
).into();
// Does not get entire reward since another collator is auto-staked via genesis config
assert_eq!(<T as Config>::Currency::balance(CurrencyId::Native.into(), &beneficiary).saturating_sub(before), (REWARD / (num_collators + 1)).into());

Ok(())
}

set_collator_reward {
assert_ok!(BlockRewards::<T>::set_total_reward(RawOrigin::Root.into(), u128::MAX.into()));
}: _(RawOrigin::Root, REWARD.into())
verify {
assert_eq!(BlockRewards::<T>::next_session_changes().collator_reward, Some(REWARD.into()));
#[benchmark]
fn set_collator_reward_per_session() -> Result<(), BenchmarkError> {
#[extrinsic_call]
set_collator_reward_per_session(RawOrigin::Root, REWARD.into());

assert_eq!(
BlockRewards::<T>::next_session_changes().collator_reward,
Some(REWARD.into())
);

Ok(())
}

set_total_reward {
}: _(RawOrigin::Root, u128::MAX.into())
verify {
assert_eq!(BlockRewards::<T>::next_session_changes().total_reward, Some(u128::MAX.into()));
#[benchmark]
fn set_annual_treasury_inflation_rate() -> Result<(), BenchmarkError> {
let rate = T::Rate::saturating_from_rational(1, 2);

#[extrinsic_call]
set_annual_treasury_inflation_rate(RawOrigin::Root, rate);

assert_eq!(
BlockRewards::<T>::next_session_changes().treasury_inflation_rate,
Some(rate)
);

Ok(())
}
}

impl_benchmark_test_suite!(
BlockRewards,
crate::mock::ExtBuilder::default().build(),
crate::mock::Test,
);
impl_benchmark_test_suite!(
BlockRewards,
crate::mock::ExtBuilder::default().build(),
crate::mock::Test,
);
}
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