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pre and post dispatch weights of OnDeliveryConfirmed callback (#1040)

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* pre and post dispatch weights of OnDeliveryConfirmed callback

* Update modules/messages/README.md

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* clippy + compilation

* fix test issue from parallel PR

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
This commit is contained in:
Svyatoslav Nikolsky
2021-07-02 12:30:08 +03:00
committed by Bastian Köcher
parent 166b5309e6
commit dfdd541bc9
8 changed files with 228 additions and 25 deletions
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bridges/modules/messages/src/weights_ext.rs
+21 -2
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@@ -20,7 +20,7 @@ use crate::weights::WeightInfo;
use bp_messages::{MessageNonce, UnrewardedRelayersState};
use bp_runtime::{PreComputedSize, Size};
use frame_support::weights::Weight;
use frame_support::weights::{RuntimeDbWeight, Weight};
/// Size of the message being delivered in benchmarks.
pub const EXPECTED_DEFAULT_MESSAGE_LENGTH: u32 = 128;
@@ -35,6 +35,7 @@ pub fn ensure_weights_are_correct<W: WeightInfoExt>(
expected_additional_byte_delivery_weight: Weight,
expected_messages_delivery_confirmation_tx_weight: Weight,
expected_pay_inbound_dispatch_fee_weight: Weight,
db_weight: RuntimeDbWeight,
) {
// verify `send_message` weight components
assert_ne!(W::send_message_overhead(), 0);
@@ -82,6 +83,7 @@ pub fn ensure_weights_are_correct<W: WeightInfoExt>(
total_messages: 1,
..Default::default()
},
db_weight,
);
assert!(
actual_messages_delivery_confirmation_tx_weight <= expected_messages_delivery_confirmation_tx_weight,
@@ -138,6 +140,7 @@ pub fn ensure_able_to_receive_confirmation<W: WeightInfoExt>(
max_inbound_lane_data_proof_size_from_peer_chain: u32,
max_unrewarded_relayer_entries_at_peer_inbound_lane: MessageNonce,
max_unconfirmed_messages_at_inbound_lane: MessageNonce,
db_weight: RuntimeDbWeight,
) {
// verify that we're able to receive confirmation of maximal-size
let max_confirmation_transaction_size =
@@ -158,6 +161,7 @@ pub fn ensure_able_to_receive_confirmation<W: WeightInfoExt>(
total_messages: max_unconfirmed_messages_at_inbound_lane,
..Default::default()
},
db_weight,
);
assert!(
max_confirmation_transaction_dispatch_weight <= max_extrinsic_weight,
@@ -212,7 +216,11 @@ pub trait WeightInfoExt: WeightInfo {
}
/// Weight of confirmation delivery extrinsic.
fn receive_messages_delivery_proof_weight(proof: &impl Size, relayers_state: &UnrewardedRelayersState) -> Weight {
fn receive_messages_delivery_proof_weight(
proof: &impl Size,
relayers_state: &UnrewardedRelayersState,
db_weight: RuntimeDbWeight,
) -> Weight {
// basic components of extrinsic weight
let transaction_overhead = Self::receive_messages_delivery_proof_overhead();
let messages_overhead = Self::receive_messages_delivery_proof_messages_overhead(relayers_state.total_messages);
@@ -225,10 +233,16 @@ pub trait WeightInfoExt: WeightInfo {
let proof_size_overhead =
Self::storage_proof_size_overhead(actual_proof_size.saturating_sub(expected_proof_size));
// and cost of calling `OnDeliveryConfirmed::on_messages_delivered()` for every confirmed message
let callback_overhead = relayers_state
.total_messages
.saturating_mul(Self::single_message_callback_overhead(db_weight));
transaction_overhead
.saturating_add(messages_overhead)
.saturating_add(relayers_overhead)
.saturating_add(proof_size_overhead)
.saturating_add(callback_overhead)
}
// Functions that are used by extrinsics weights formulas.
@@ -321,6 +335,11 @@ pub trait WeightInfoExt: WeightInfo {
fn pay_inbound_dispatch_fee_overhead() -> Weight {
Self::receive_single_message_proof().saturating_sub(Self::receive_single_prepaid_message_proof())
}
/// Returns pre-dispatch weight of single message delivery callback call.
fn single_message_callback_overhead(db_weight: RuntimeDbWeight) -> Weight {
db_weight.reads_writes(1, 1)
}
}
impl WeightInfoExt for () {