add sudo call to set tempo.

pallets/subtensor/src/benchmarks.rs

@@ -661,5 +661,15 @@ benchmarks! {
     assert_ok!( Subtensor::<T>::do_add_network( RawOrigin::Root.into(), netuid.try_into().unwrap(), tempo.into(), modality.into()));
 
   }: sudo_set_min_burn(RawOrigin::<AccountIdOf<T>>::Root, netuid, min_burn)
+
+  benchmark_sudo_set_tempo {
+    let netuid: u16 = 1;
+    let tempo_default: u16 = 1;
+    let tempo: u16 = 15;
+    let modality: u16 = 0;
+
+    assert_ok!( Subtensor::<T>::do_add_network( RawOrigin::Root.into(), netuid.try_into().unwrap(), tempo_default.into(), modality.into()));
+
+  }: sudo_set_tempo(RawOrigin::<AccountIdOf<T>>::Root, netuid, tempo)
 }
 

pallets/subtensor/src/lib.rs

@@ -564,6 +564,7 @@ pub mod pallet {
 		MaxBurnSet( u16, u64 ), // --- Event created when setting max burn on a network.
 		MinBurnSet( u16, u64 ), // --- Event created when setting min burn on a network.
 		TxRateLimitSet( u64 ), // --- Event created when setting the transaction rate limit.
+		TempoSet(u16, u16), // --- Event created when setting tempo on a network
 	}
 
 	// Errors inform users that something went wrong.
@@ -1449,13 +1450,18 @@ pub mod pallet {
 		pub fn sudo_set_max_registrations_per_block(origin: OriginFor<T>, netuid: u16, max_registrations_per_block: u16 ) -> DispatchResult {
 			Self::do_sudo_set_max_registrations_per_block(origin, netuid, max_registrations_per_block )
 		}
+		#[pallet::weight((Weight::from_ref_time(15_000_000)
+		.saturating_add(T::DbWeight::get().reads(1))
+		.saturating_add(T::DbWeight::get().writes(1)), DispatchClass::Operational, Pays::No))]
+		pub fn sudo_set_tempo(origin:OriginFor<T>, netuid: u16, tempo: u16) -> DispatchResult {
+			Self::do_sudo_set_tempo(origin, netuid, tempo)
+		}
 
 		#[pallet::weight((0, DispatchClass::Operational, Pays::No))]
 		pub fn sudo_set_total_issuance(origin: OriginFor<T>, total_issuance: u64 ) -> DispatchResult {
 			Self::do_set_total_issuance(origin, total_issuance)
 		}
 
-
 		// Benchmarking functions.
 		#[pallet::weight((0, DispatchClass::Normal, Pays::No))]
 		pub fn create_network( _: OriginFor<T>, netuid: u16, n: u16, tempo: u16 ) -> DispatchResult {

pallets/subtensor/src/utils.rs

@@ -476,6 +476,19 @@ impl<T: Config> Pallet<T> {
         Self::deposit_event( Event::MaxRegistrationsPerBlockSet( netuid, max_registrations_per_block) );
         Ok(())
     }
+    pub fn do_sudo_set_tempo (
+        origin: T::RuntimeOrigin, 
+        netuid: u16, 
+        tempo: u16
+    ) -> DispatchResult {
+        ensure_root( origin )?;
+        ensure!(Self::if_subnet_exist(netuid), Error::<T>::NetworkDoesNotExist);
+        ensure!( Self::if_tempo_is_valid( tempo ), Error::<T>::InvalidTempo );
+        Self::set_tempo(netuid, tempo);
+        log::info!("TempoSet( netuid: {:?} tempo: {:?} ) ", netuid, tempo );
+        Self::deposit_event( Event::TempoSet(netuid, tempo) );
+        Ok(())
+    }
     pub fn do_set_total_issuance(origin: T::RuntimeOrigin, total_issuance: u64) -> DispatchResult{
         ensure_root( origin )?;
         TotalIssuance::<T>::put( total_issuance );