diff --git a/runtime/common/src/integration_tests.rs b/runtime/common/src/integration_tests.rs
index 50a1e9efaaac..c0e1615599e7 100644
--- a/runtime/common/src/integration_tests.rs
+++ b/runtime/common/src/integration_tests.rs
@@ -156,7 +156,9 @@ impl pallet_balances::Config for Test {
 	type ReserveIdentifier = [u8; 8];
 }
 
-impl configuration::Config for Test {}
+impl configuration::Config for Test {
+	type WeightInfo = configuration::weights::WeightInfo<Test>;
+}
 
 impl shared::Config for Test {}
 
diff --git a/runtime/common/src/paras_registrar.rs b/runtime/common/src/paras_registrar.rs
index 5f444bcffc0f..ee595cd0df05 100644
--- a/runtime/common/src/paras_registrar.rs
+++ b/runtime/common/src/paras_registrar.rs
@@ -213,7 +213,7 @@ pub mod pallet {
 		///
 		/// ## Events
 		/// The `Registered` event is emitted in case of success.
-		#[pallet::weight(T::WeightInfo::register())]
+		#[pallet::weight(<T as Config>::WeightInfo::register())]
 		pub fn register(
 			origin: OriginFor<T>,
 			id: ParaId,
@@ -231,7 +231,7 @@ pub mod pallet {
 		///
 		/// The deposit taken can be specified for this registration. Any `ParaId`
 		/// can be registered, including sub-1000 IDs which are System Parachains.
-		#[pallet::weight(T::WeightInfo::force_register())]
+		#[pallet::weight(<T as Config>::WeightInfo::force_register())]
 		pub fn force_register(
 			origin: OriginFor<T>,
 			who: T::AccountId,
@@ -247,7 +247,7 @@ pub mod pallet {
 		/// Deregister a Para Id, freeing all data and returning any deposit.
 		///
 		/// The caller must be Root, the `para` owner, or the `para` itself. The para must be a parathread.
-		#[pallet::weight(T::WeightInfo::deregister())]
+		#[pallet::weight(<T as Config>::WeightInfo::deregister())]
 		pub fn deregister(origin: OriginFor<T>, id: ParaId) -> DispatchResult {
 			Self::ensure_root_para_or_owner(origin, id)?;
 			Self::do_deregister(id)
@@ -264,7 +264,7 @@ pub mod pallet {
 		/// `ParaId` to be a long-term identifier of a notional "parachain". However, their
 		/// scheduling info (i.e. whether they're a parathread or parachain), auction information
 		/// and the auction deposit are switched.
-		#[pallet::weight(T::WeightInfo::swap())]
+		#[pallet::weight(<T as Config>::WeightInfo::swap())]
 		pub fn swap(origin: OriginFor<T>, id: ParaId, other: ParaId) -> DispatchResult {
 			Self::ensure_root_para_or_owner(origin, id)?;
 
@@ -325,7 +325,7 @@ pub mod pallet {
 		///
 		/// ## Events
 		/// The `Reserved` event is emitted in case of success, which provides the ID reserved for use.
-		#[pallet::weight(T::WeightInfo::reserve())]
+		#[pallet::weight(<T as Config>::WeightInfo::reserve())]
 		pub fn reserve(origin: OriginFor<T>) -> DispatchResult {
 			let who = ensure_signed(origin)?;
 			let id = NextFreeParaId::<T>::get().max(LOWEST_PUBLIC_ID);
@@ -659,7 +659,9 @@ mod tests {
 		type Event = Event;
 	}
 
-	impl configuration::Config for Test {}
+	impl configuration::Config for Test {
+		type WeightInfo = configuration::weights::WeightInfo<Test>;
+	}
 
 	parameter_types! {
 		pub const ParaDeposit: Balance = 10;
diff --git a/runtime/kusama/src/lib.rs b/runtime/kusama/src/lib.rs
index cd6f3fc2e277..78e910f01f01 100644
--- a/runtime/kusama/src/lib.rs
+++ b/runtime/kusama/src/lib.rs
@@ -1126,7 +1126,9 @@ impl pallet_proxy::Config for Runtime {
 
 impl parachains_origin::Config for Runtime {}
 
-impl parachains_configuration::Config for Runtime {}
+impl parachains_configuration::Config for Runtime {
+	type WeightInfo = weights::runtime_parachains_configuration::WeightInfo<Runtime>;
+}
 
 impl parachains_shared::Config for Runtime {}
 
@@ -2000,6 +2002,7 @@ sp_api::impl_runtime_apis! {
 			list_benchmark!(list, extra, runtime_common::claims, Claims);
 			list_benchmark!(list, extra, runtime_common::slots, Slots);
 			list_benchmark!(list, extra, runtime_common::paras_registrar, Registrar);
+			list_benchmark!(list, extra, runtime_parachains::configuration, Configuration);
 			// Substrate
 			list_benchmark!(list, extra, pallet_bags_list, BagsList);
 			list_benchmark!(list, extra, pallet_balances, Balances);
@@ -2074,6 +2077,7 @@ sp_api::impl_runtime_apis! {
 			add_benchmark!(params, batches, runtime_common::claims, Claims);
 			add_benchmark!(params, batches, runtime_common::slots, Slots);
 			add_benchmark!(params, batches, runtime_common::paras_registrar, Registrar);
+			add_benchmark!(params, batches, runtime_parachains::configuration, Configuration);
 			// Substrate
 			add_benchmark!(params, batches, pallet_balances, Balances);
 			add_benchmark!(params, batches, pallet_bags_list, BagsList);
diff --git a/runtime/kusama/src/weights/mod.rs b/runtime/kusama/src/weights/mod.rs
index 35273e1c98a0..adb103ad4eee 100644
--- a/runtime/kusama/src/weights/mod.rs
+++ b/runtime/kusama/src/weights/mod.rs
@@ -44,3 +44,4 @@ pub mod runtime_common_claims;
 pub mod runtime_common_crowdloan;
 pub mod runtime_common_paras_registrar;
 pub mod runtime_common_slots;
+pub mod runtime_parachains_configuration;
diff --git a/runtime/kusama/src/weights/runtime_parachains_configuration.rs b/runtime/kusama/src/weights/runtime_parachains_configuration.rs
new file mode 100644
index 000000000000..ae840f37752d
--- /dev/null
+++ b/runtime/kusama/src/weights/runtime_parachains_configuration.rs
@@ -0,0 +1,91 @@
+// Copyright 2017-2021 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+//! Autogenerated weights for `runtime_parachains::configuration`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2021-09-17, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("kusama-dev"), DB CACHE: 128
+
+// Executed Command:
+// target/release/polkadot
+// benchmark
+// --chain=kusama-dev
+// --steps=50
+// --repeat=20
+// --pallet=runtime_parachains::configuration
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --header=./file_header.txt
+// --output=./runtime/kusama/src/weights/runtime_parachains_configuration.rs
+
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `runtime_parachains::configuration`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> runtime_parachains::configuration::WeightInfo for WeightInfo<T> {
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_block_number() -> Weight {
+		(12_378_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_u32() -> Weight {
+		(12_384_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_option_u32() -> Weight {
+		(12_746_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_weight() -> Weight {
+		(12_563_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: Benchmark Override (r:0 w:0)
+	fn set_hrmp_open_request_ttl() -> Weight {
+		(2_000_000_000_000 as Weight)
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_balance() -> Weight {
+		(12_644_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+}
diff --git a/runtime/parachains/Cargo.toml b/runtime/parachains/Cargo.toml
index 8e3b41d95e6b..3b75b95619fe 100644
--- a/runtime/parachains/Cargo.toml
+++ b/runtime/parachains/Cargo.toml
@@ -28,12 +28,12 @@ pallet-authority-discovery = { git = "https://github.com/paritytech/substrate",
 pallet-authorship = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-session = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-staking = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-frame-system = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 pallet-vesting = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false, optional = true }
+frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+frame-system = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 
 xcm = { package = "xcm", path = "../../xcm", default-features = false }
 xcm-executor = { package = "xcm-executor", path = "../../xcm/xcm-executor", default-features = false }
diff --git a/runtime/parachains/src/configuration.rs b/runtime/parachains/src/configuration.rs
index 64aaac6b3487..bcfc05e1a6c5 100644
--- a/runtime/parachains/src/configuration.rs
+++ b/runtime/parachains/src/configuration.rs
@@ -26,6 +26,10 @@ use primitives::v1::{Balance, SessionIndex, MAX_CODE_SIZE, MAX_POV_SIZE};
 use sp_runtime::traits::Zero;
 use sp_std::prelude::*;
 
+#[cfg(feature = "runtime-benchmarks")]
+mod benchmarking;
+pub mod weights;
+
 pub use pallet::*;
 
 pub mod migration;
@@ -258,6 +262,15 @@ impl<BlockNumber: Zero> HostConfiguration<BlockNumber> {
 	}
 }
 
+pub trait WeightInfo {
+	fn set_config_with_block_number() -> Weight;
+	fn set_config_with_u32() -> Weight;
+	fn set_config_with_option_u32() -> Weight;
+	fn set_config_with_weight() -> Weight;
+	fn set_config_with_balance() -> Weight;
+	fn set_hrmp_open_request_ttl() -> Weight;
+}
+
 #[frame_support::pallet]
 pub mod pallet {
 	use super::*;
@@ -268,7 +281,10 @@ pub mod pallet {
 	pub struct Pallet<T>(_);
 
 	#[pallet::config]
-	pub trait Config: frame_system::Config + shared::Config {}
+	pub trait Config: frame_system::Config + shared::Config {
+		/// Weight information for extrinsics in this pallet.
+		type WeightInfo: WeightInfo;
+	}
 
 	#[pallet::error]
 	pub enum Error<T> {
@@ -310,7 +326,7 @@ pub mod pallet {
 	#[pallet::call]
 	impl<T: Config> Pallet<T> {
 		/// Set the validation upgrade frequency.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_validation_upgrade_frequency(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -323,7 +339,7 @@ pub mod pallet {
 		}
 
 		/// Set the validation upgrade delay.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_validation_upgrade_delay(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -336,7 +352,7 @@ pub mod pallet {
 		}
 
 		/// Set the acceptance period for an included candidate.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_code_retention_period(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -349,7 +365,7 @@ pub mod pallet {
 		}
 
 		/// Set the max validation code size for incoming upgrades.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_code_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			ensure!(new <= MAX_CODE_SIZE, Error::<T>::InvalidNewValue);
@@ -360,7 +376,7 @@ pub mod pallet {
 		}
 
 		/// Set the max POV block size for incoming upgrades.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_pov_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			ensure!(new <= MAX_POV_SIZE, Error::<T>::InvalidNewValue);
@@ -371,7 +387,7 @@ pub mod pallet {
 		}
 
 		/// Set the max head data size for paras.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_head_data_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -381,7 +397,7 @@ pub mod pallet {
 		}
 
 		/// Set the number of parathread execution cores.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_parathread_cores(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -391,7 +407,7 @@ pub mod pallet {
 		}
 
 		/// Set the number of retries for a particular parathread.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_parathread_retries(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -401,7 +417,7 @@ pub mod pallet {
 		}
 
 		/// Set the parachain validator-group rotation frequency
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_group_rotation_frequency(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -417,7 +433,7 @@ pub mod pallet {
 		}
 
 		/// Set the availability period for parachains.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_chain_availability_period(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -433,7 +449,7 @@ pub mod pallet {
 		}
 
 		/// Set the availability period for parathreads.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_thread_availability_period(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -449,7 +465,7 @@ pub mod pallet {
 		}
 
 		/// Set the scheduling lookahead, in expected number of blocks at peak throughput.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_scheduling_lookahead(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -459,7 +475,7 @@ pub mod pallet {
 		}
 
 		/// Set the maximum number of validators to assign to any core.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_option_u32())]
 		pub fn set_max_validators_per_core(
 			origin: OriginFor<T>,
 			new: Option<u32>,
@@ -472,7 +488,7 @@ pub mod pallet {
 		}
 
 		/// Set the maximum number of validators to use in parachain consensus.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_option_u32())]
 		pub fn set_max_validators(origin: OriginFor<T>, new: Option<u32>) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -482,7 +498,7 @@ pub mod pallet {
 		}
 
 		/// Set the dispute period, in number of sessions to keep for disputes.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_dispute_period(origin: OriginFor<T>, new: SessionIndex) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -492,7 +508,7 @@ pub mod pallet {
 		}
 
 		/// Set the dispute post conclusion acceptance period.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_dispute_post_conclusion_acceptance_period(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -506,7 +522,7 @@ pub mod pallet {
 		}
 
 		/// Set the maximum number of dispute spam slots.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_dispute_max_spam_slots(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -516,7 +532,7 @@ pub mod pallet {
 		}
 
 		/// Set the dispute conclusion by time out period.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_block_number())]
 		pub fn set_dispute_conclusion_by_time_out_period(
 			origin: OriginFor<T>,
 			new: T::BlockNumber,
@@ -530,7 +546,7 @@ pub mod pallet {
 
 		/// Set the no show slots, in number of number of consensus slots.
 		/// Must be at least 1.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_no_show_slots(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 
@@ -543,7 +559,7 @@ pub mod pallet {
 		}
 
 		/// Set the total number of delay tranches.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_n_delay_tranches(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -553,7 +569,7 @@ pub mod pallet {
 		}
 
 		/// Set the zeroth delay tranche width.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_zeroth_delay_tranche_width(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -563,7 +579,7 @@ pub mod pallet {
 		}
 
 		/// Set the number of validators needed to approve a block.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_needed_approvals(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -573,7 +589,7 @@ pub mod pallet {
 		}
 
 		/// Set the number of samples to do of the `RelayVRFModulo` approval assignment criterion.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_relay_vrf_modulo_samples(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -583,7 +599,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum items that can present in a upward dispatch queue at once.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_upward_queue_count(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -593,7 +609,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum total size of items that can present in a upward dispatch queue at once.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_upward_queue_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -603,7 +619,7 @@ pub mod pallet {
 		}
 
 		/// Set the critical downward message size.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_downward_message_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -613,7 +629,7 @@ pub mod pallet {
 		}
 
 		/// Sets the soft limit for the phase of dispatching dispatchable upward messages.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_weight())]
 		pub fn set_ump_service_total_weight(origin: OriginFor<T>, new: Weight) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -623,7 +639,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum size of an upward message that can be sent by a candidate.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_upward_message_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -633,7 +649,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of messages that a candidate can contain.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_max_upward_message_num_per_candidate(
 			origin: OriginFor<T>,
 			new: u32,
@@ -646,7 +662,7 @@ pub mod pallet {
 		}
 
 		/// Sets the number of sessions after which an HRMP open channel request expires.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_hrmp_open_request_ttl())]
 		// Deprecated, but is not marked as such, because that would trigger warnings coming from
 		// the macro.
 		pub fn set_hrmp_open_request_ttl(_origin: OriginFor<T>, _new: u32) -> DispatchResult {
@@ -654,7 +670,7 @@ pub mod pallet {
 		}
 
 		/// Sets the amount of funds that the sender should provide for opening an HRMP channel.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_balance())]
 		pub fn set_hrmp_sender_deposit(origin: OriginFor<T>, new: Balance) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -665,7 +681,7 @@ pub mod pallet {
 
 		/// Sets the amount of funds that the recipient should provide for accepting opening an HRMP
 		/// channel.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_balance())]
 		pub fn set_hrmp_recipient_deposit(origin: OriginFor<T>, new: Balance) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -675,7 +691,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of messages allowed in an HRMP channel at once.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_channel_max_capacity(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -685,7 +701,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum total size of messages in bytes allowed in an HRMP channel at once.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_channel_max_total_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -695,7 +711,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of inbound HRMP channels a parachain is allowed to accept.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_max_parachain_inbound_channels(
 			origin: OriginFor<T>,
 			new: u32,
@@ -708,7 +724,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of inbound HRMP channels a parathread is allowed to accept.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_max_parathread_inbound_channels(
 			origin: OriginFor<T>,
 			new: u32,
@@ -721,7 +737,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum size of a message that could ever be put into an HRMP channel.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_channel_max_message_size(origin: OriginFor<T>, new: u32) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
@@ -731,7 +747,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of outbound HRMP channels a parachain is allowed to open.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_max_parachain_outbound_channels(
 			origin: OriginFor<T>,
 			new: u32,
@@ -744,7 +760,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of outbound HRMP channels a parathread is allowed to open.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_max_parathread_outbound_channels(
 			origin: OriginFor<T>,
 			new: u32,
@@ -757,7 +773,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum number of outbound HRMP messages can be sent by a candidate.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_u32())]
 		pub fn set_hrmp_max_message_num_per_candidate(
 			origin: OriginFor<T>,
 			new: u32,
@@ -770,7 +786,7 @@ pub mod pallet {
 		}
 
 		/// Sets the maximum amount of weight any individual upward message may consume.
-		#[pallet::weight((1_000, DispatchClass::Operational))]
+		#[pallet::weight(T::WeightInfo::set_config_with_weight())]
 		pub fn set_ump_max_individual_weight(origin: OriginFor<T>, new: Weight) -> DispatchResult {
 			ensure_root(origin)?;
 			Self::update_config_member(|config| {
diff --git a/runtime/parachains/src/configuration/benchmarking.rs b/runtime/parachains/src/configuration/benchmarking.rs
new file mode 100644
index 000000000000..8b319cb8fabb
--- /dev/null
+++ b/runtime/parachains/src/configuration/benchmarking.rs
@@ -0,0 +1,44 @@
+// Copyright 2020 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::configuration::*;
+use frame_benchmarking::{benchmarks, impl_benchmark_test_suite, BenchmarkError, BenchmarkResult};
+use frame_system::RawOrigin;
+use sp_runtime::traits::One;
+
+benchmarks! {
+	set_config_with_block_number {}: set_code_retention_period(RawOrigin::Root, One::one())
+
+	set_config_with_u32 {}: set_max_code_size(RawOrigin::Root, 100)
+
+	set_config_with_option_u32 {}: set_max_validators(RawOrigin::Root, Some(10))
+
+	set_config_with_weight {}: set_ump_service_total_weight(RawOrigin::Root, 3_000_000)
+
+	set_hrmp_open_request_ttl {}: {
+		Err(BenchmarkError::Override(
+			BenchmarkResult::from_weight(T::BlockWeights::get().max_block)
+		))?;
+	}
+
+	set_config_with_balance {}: set_hrmp_sender_deposit(RawOrigin::Root, 100_000_000_000)
+}
+
+impl_benchmark_test_suite!(
+	Pallet,
+	crate::mock::new_test_ext(Default::default()),
+	crate::mock::Test
+);
diff --git a/runtime/parachains/src/configuration/weights.rs b/runtime/parachains/src/configuration/weights.rs
new file mode 100644
index 000000000000..da70d6cb29d1
--- /dev/null
+++ b/runtime/parachains/src/configuration/weights.rs
@@ -0,0 +1,82 @@
+
+//! Autogenerated weights for `runtime_parachains::configuration`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2021-09-17, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("westend-dev"), DB CACHE: 128
+
+// Executed Command:
+// ./target/release/polkadot
+// benchmark
+// --chain
+// westend-dev
+// --execution=wasm
+// --wasm-execution=compiled
+// --pallet
+// runtime_parachains::configuration
+// --steps
+// 50
+// --repeat
+// 20
+// --raw
+// --extrinsic
+// *
+// --output
+// runtime/parachains/src/configuration/weights.rs
+
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `runtime_parachains::configuration`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> super::WeightInfo for WeightInfo<T> {
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_block_number() -> Weight {
+		(16_730_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_u32() -> Weight {
+		(16_592_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_option_u32() -> Weight {
+		(16_419_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_weight() -> Weight {
+		(16_732_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: Benchmark Override (r:0 w:0)
+	fn set_hrmp_open_request_ttl() -> Weight {
+		(2_000_000_000_000 as Weight)
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_balance() -> Weight {
+		(16_752_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+}
diff --git a/runtime/parachains/src/lib.rs b/runtime/parachains/src/lib.rs
index 1ea90bb84e63..ab48d693d601 100644
--- a/runtime/parachains/src/lib.rs
+++ b/runtime/parachains/src/lib.rs
@@ -20,6 +20,7 @@
 //! particular the `Initializer` module, as it is responsible for initializing the state
 //! of the other modules.
 
+#![cfg_attr(feature = "runtime-benchmarks", recursion_limit = "256")]
 #![cfg_attr(not(feature = "std"), no_std)]
 
 pub mod configuration;
diff --git a/runtime/parachains/src/mock.rs b/runtime/parachains/src/mock.rs
index 5cf8d6237485..c4da0991de18 100644
--- a/runtime/parachains/src/mock.rs
+++ b/runtime/parachains/src/mock.rs
@@ -114,7 +114,9 @@ impl crate::initializer::Config for Test {
 	type ForceOrigin = frame_system::EnsureRoot<u64>;
 }
 
-impl crate::configuration::Config for Test {}
+impl crate::configuration::Config for Test {
+	type WeightInfo = crate::configuration::weights::WeightInfo<Test>;
+}
 
 impl crate::shared::Config for Test {}
 
diff --git a/runtime/rococo/src/lib.rs b/runtime/rococo/src/lib.rs
index cbedecf056ee..182c8f953cc0 100644
--- a/runtime/rococo/src/lib.rs
+++ b/runtime/rococo/src/lib.rs
@@ -560,7 +560,9 @@ impl pallet_authorship::Config for Runtime {
 
 impl parachains_origin::Config for Runtime {}
 
-impl parachains_configuration::Config for Runtime {}
+impl parachains_configuration::Config for Runtime {
+	type WeightInfo = parachains_configuration::weights::WeightInfo<Runtime>;
+}
 
 impl parachains_shared::Config for Runtime {}
 
diff --git a/runtime/test-runtime/src/lib.rs b/runtime/test-runtime/src/lib.rs
index a1fe03cb37f6..58ccea45c249 100644
--- a/runtime/test-runtime/src/lib.rs
+++ b/runtime/test-runtime/src/lib.rs
@@ -454,7 +454,9 @@ impl pallet_sudo::Config for Runtime {
 	type Call = Call;
 }
 
-impl parachains_configuration::Config for Runtime {}
+impl parachains_configuration::Config for Runtime {
+	type WeightInfo = parachains_configuration::weights::WeightInfo<Runtime>;
+}
 
 impl parachains_shared::Config for Runtime {}
 
diff --git a/runtime/westend/src/lib.rs b/runtime/westend/src/lib.rs
index 09baa14a691b..e7587856ecda 100644
--- a/runtime/westend/src/lib.rs
+++ b/runtime/westend/src/lib.rs
@@ -795,7 +795,9 @@ impl pallet_proxy::Config for Runtime {
 
 impl parachains_origin::Config for Runtime {}
 
-impl parachains_configuration::Config for Runtime {}
+impl parachains_configuration::Config for Runtime {
+	type WeightInfo = parachains_configuration::weights::WeightInfo<Runtime>;
+}
 
 impl parachains_shared::Config for Runtime {}
 
@@ -1462,6 +1464,7 @@ sp_api::impl_runtime_apis! {
 			list_benchmark!(list, extra, runtime_common::crowdloan, Crowdloan);
 			list_benchmark!(list, extra, runtime_common::paras_registrar, Registrar);
 			list_benchmark!(list, extra, runtime_common::slots, Slots);
+			list_benchmark!(list, extra, runtime_parachains::configuration, Configuration);
 			// Substrate
 			list_benchmark!(list, extra, pallet_bags_list, BagsList);
 			list_benchmark!(list, extra, pallet_balances, Balances);
@@ -1527,6 +1530,7 @@ sp_api::impl_runtime_apis! {
 			add_benchmark!(params, batches, runtime_common::crowdloan, Crowdloan);
 			add_benchmark!(params, batches, runtime_common::paras_registrar, Registrar);
 			add_benchmark!(params, batches, runtime_common::slots, Slots);
+			add_benchmark!(params, batches, runtime_parachains::configuration, Configuration);
 			// Substrate
 			add_benchmark!(params, batches, pallet_bags_list, BagsList);
 			add_benchmark!(params, batches, pallet_balances, Balances);
diff --git a/runtime/westend/src/weights/mod.rs b/runtime/westend/src/weights/mod.rs
index 05fefbef7d71..76e23ae5fb49 100644
--- a/runtime/westend/src/weights/mod.rs
+++ b/runtime/westend/src/weights/mod.rs
@@ -34,3 +34,4 @@ pub mod runtime_common_auctions;
 pub mod runtime_common_crowdloan;
 pub mod runtime_common_paras_registrar;
 pub mod runtime_common_slots;
+pub mod runtime_parachains_configuration;
diff --git a/runtime/westend/src/weights/runtime_parachains_configuration.rs b/runtime/westend/src/weights/runtime_parachains_configuration.rs
new file mode 100644
index 000000000000..6c1753e7c3b3
--- /dev/null
+++ b/runtime/westend/src/weights/runtime_parachains_configuration.rs
@@ -0,0 +1,91 @@
+// Copyright 2017-2021 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Polkadot is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+//! Autogenerated weights for `runtime_parachains::configuration`
+//!
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2021-09-17, STEPS: `50`, REPEAT: 20, LOW RANGE: `[]`, HIGH RANGE: `[]`
+//! EXECUTION: Some(Wasm), WASM-EXECUTION: Compiled, CHAIN: Some("westend-dev"), DB CACHE: 128
+
+// Executed Command:
+// target/release/polkadot
+// benchmark
+// --chain=westend-dev
+// --steps=50
+// --repeat=20
+// --pallet=runtime_parachains::configuration
+// --extrinsic=*
+// --execution=wasm
+// --wasm-execution=compiled
+// --heap-pages=4096
+// --header=./file_header.txt
+// --output=./runtime/westend/src/weights/runtime_parachains_configuration.rs
+
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+#![allow(unused_parens)]
+#![allow(unused_imports)]
+
+use frame_support::{traits::Get, weights::Weight};
+use sp_std::marker::PhantomData;
+
+/// Weight functions for `runtime_parachains::configuration`.
+pub struct WeightInfo<T>(PhantomData<T>);
+impl<T: frame_system::Config> runtime_parachains::configuration::WeightInfo for WeightInfo<T> {
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_block_number() -> Weight {
+		(12_795_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_u32() -> Weight {
+		(12_758_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_option_u32() -> Weight {
+		(12_861_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_weight() -> Weight {
+		(12_854_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+	// Storage: Benchmark Override (r:0 w:0)
+	fn set_hrmp_open_request_ttl() -> Weight {
+		(2_000_000_000_000 as Weight)
+	}
+	// Storage: ParasShared CurrentSessionIndex (r:1 w:0)
+	// Storage: Configuration PendingConfig (r:1 w:1)
+	// Storage: Configuration ActiveConfig (r:1 w:0)
+	fn set_config_with_balance() -> Weight {
+		(12_838_000 as Weight)
+			.saturating_add(T::DbWeight::get().reads(3 as Weight))
+			.saturating_add(T::DbWeight::get().writes(1 as Weight))
+	}
+}
diff --git a/xcm/xcm-builder/tests/mock/mod.rs b/xcm/xcm-builder/tests/mock/mod.rs
index ee5c77afe587..bcdac942a30a 100644
--- a/xcm/xcm-builder/tests/mock/mod.rs
+++ b/xcm/xcm-builder/tests/mock/mod.rs
@@ -107,7 +107,9 @@ impl pallet_balances::Config for Runtime {
 
 impl shared::Config for Runtime {}
 
-impl configuration::Config for Runtime {}
+impl configuration::Config for Runtime {
+	type WeightInfo = configuration::weights::WeightInfo<Runtime>;
+}
 
 // aims to closely emulate the Kusama XcmConfig
 parameter_types! {
diff --git a/xcm/xcm-simulator/example/src/relay_chain.rs b/xcm/xcm-simulator/example/src/relay_chain.rs
index a6f6f1989174..cc50aec90d18 100644
--- a/xcm/xcm-simulator/example/src/relay_chain.rs
+++ b/xcm/xcm-simulator/example/src/relay_chain.rs
@@ -88,7 +88,9 @@ impl pallet_balances::Config for Runtime {
 
 impl shared::Config for Runtime {}
 
-impl configuration::Config for Runtime {}
+impl configuration::Config for Runtime {
+	type WeightInfo = configuration::weights::WeightInfo<Runtime>;
+}
 
 parameter_types! {
 	pub const KsmLocation: MultiLocation = Here.into();