Per subsystem CPU usage tracking (#4239)

* SubsystemContext: add subsystem name str

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Overseer builder proc macro changes

* initilize SubsystemContext name field.
* Add subsystem name in TaskKind::launch_task()

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Update ToOverseer enum

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Assign subsystem names to orphan tasks

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* cargo fmt

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* SubsystemContext: add subsystem name str

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Overseer builder proc macro changes

* initilize SubsystemContext name field.
* Add subsystem name in TaskKind::launch_task()

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Update ToOverseer enum

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* Assign subsystem names to orphan tasks

Signed-off-by: Andrei Sandu <sandu.andrei@gmail.com>

* cargo fmt

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Rebase changes for new spawn() group param

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Add subsystem constat in JobTrait

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Add subsystem string

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fix tests

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fix spawn() calls

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* cargo fmt

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fix

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fix tests

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* fix

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fix more tests

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Address PR review feedback #1

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Address PR review round 2

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* Fixes
- remove JobTrait::Subsystem
- fix tests

Signed-off-by: Andrei Sandu <andrei-mihail@parity.io>

* update Cargo.lock

Co-authored-by: Andronik Ordian <write@reusable.software>

node/collation-generation/src/lib.rs

@@ -291,7 +291,7 @@ async fn handle_new_activations<Context: SubsystemContext>(
 			let mut task_sender = sender.clone();
 			let metrics = metrics.clone();
 			ctx.spawn(
-				"collation generation collation builder",
+				"collation-builder",
 				Box::pin(async move {
 					let persisted_validation_data_hash = validation_data.hash();
 

node/core/av-store/src/lib.rs

@@ -383,8 +383,9 @@ impl Error {
 	fn trace(&self) {
 		match self {
 			// don't spam the log with spurious errors
-			Self::RuntimeApi(_) | Self::Oneshot(_) =>
-				tracing::debug!(target: LOG_TARGET, err = ?self),
+			Self::RuntimeApi(_) | Self::Oneshot(_) => {
+				tracing::debug!(target: LOG_TARGET, err = ?self)
+			},
 			// it's worth reporting otherwise
 			_ => tracing::warn!(target: LOG_TARGET, err = ?self),
 		}

node/core/backing/src/lib.rs

@@ -659,7 +659,7 @@ impl CandidateBackingJob {
 				}
 			};
 			sender
-				.send_command(FromJobCommand::Spawn("Backing Validation", bg.boxed()))
+				.send_command(FromJobCommand::Spawn("backing-validation", bg.boxed()))
 				.await?;
 		}
 
@@ -900,11 +900,13 @@ impl CandidateBackingJob {
 				.await;
 
 			match confirmation_rx.await {
-				Err(oneshot::Canceled) =>
-					tracing::debug!(target: LOG_TARGET, "Dispute coordinator confirmation lost",),
+				Err(oneshot::Canceled) => {
+					tracing::debug!(target: LOG_TARGET, "Dispute coordinator confirmation lost",)
+				},
 				Ok(ImportStatementsResult::ValidImport) => {},
-				Ok(ImportStatementsResult::InvalidImport) =>
-					tracing::warn!(target: LOG_TARGET, "Failed to import statements of validity",),
+				Ok(ImportStatementsResult::InvalidImport) => {
+					tracing::warn!(target: LOG_TARGET, "Failed to import statements of validity",)
+				},
 			}
 		}
 
@@ -1168,7 +1170,7 @@ impl util::JobTrait for CandidateBackingJob {
 	type RunArgs = SyncCryptoStorePtr;
 	type Metrics = Metrics;
 
-	const NAME: &'static str = "CandidateBackingJob";
+	const NAME: &'static str = "candidate-backing-job";
 
 	fn run<S: SubsystemSender>(
 		parent: Hash,

node/core/bitfield-signing/src/lib.rs

@@ -233,7 +233,7 @@ impl JobTrait for BitfieldSigningJob {
 	type RunArgs = SyncCryptoStorePtr;
 	type Metrics = Metrics;
 
-	const NAME: &'static str = "BitfieldSigningJob";
+	const NAME: &'static str = "bitfield-signing-job";
 
 	/// Run a job for the parent block indicated
 	fn run<S: SubsystemSender>(

node/core/provisioner/src/lib.rs

@@ -148,7 +148,7 @@ impl JobTrait for ProvisioningJob {
 	type RunArgs = ();
 	type Metrics = Metrics;
 
-	const NAME: &'static str = "ProvisioningJob";
+	const NAME: &'static str = "provisioner-job";
 
 	/// Run a job for the parent block indicated
 	//

node/core/pvf/src/executor_intf.rs

@@ -278,11 +278,21 @@ impl TaskExecutor {
 }
 
 impl sp_core::traits::SpawnNamed for TaskExecutor {
-	fn spawn_blocking(&self, _: &'static str, future: futures::future::BoxFuture<'static, ()>) {
+	fn spawn_blocking(
+		&self,
+		_task_name: &'static str,
+		_subsystem_name: Option<&'static str>,
+		future: futures::future::BoxFuture<'static, ()>,
+	) {
 		self.0.spawn_ok(future);
 	}
 
-	fn spawn(&self, _: &'static str, future: futures::future::BoxFuture<'static, ()>) {
+	fn spawn(
+		&self,
+		_task_name: &'static str,
+		_subsystem_name: Option<&'static str>,
+		future: futures::future::BoxFuture<'static, ()>,
+	) {
 		self.0.spawn_ok(future);
 	}
 }

node/core/runtime-api/src/lib.rs

@@ -270,7 +270,8 @@ where
 				)
 			}
 		} else {
-			self.spawn_handle.spawn_blocking(API_REQUEST_TASK_NAME, request);
+			self.spawn_handle
+				.spawn_blocking(API_REQUEST_TASK_NAME, Some("runtime-api"), request);
 			self.active_requests.push(receiver);
 		}
 	}
@@ -288,7 +289,8 @@ where
 		}
 
 		if let Some((req, recv)) = self.waiting_requests.pop_front() {
-			self.spawn_handle.spawn_blocking(API_REQUEST_TASK_NAME, req);
+			self.spawn_handle
+				.spawn_blocking(API_REQUEST_TASK_NAME, Some("runtime-api"), req);
 			self.active_requests.push(recv);
 		}
 	}

node/jaeger/src/lib.rs

@@ -112,6 +112,7 @@ impl Jaeger {
 		// Spawn a background task that pulls span information and sends them on the network.
 		spawner.spawn(
 			"jaeger-collector",
+			Some("jaeger"),
 			Box::pin(async move {
 				match async_std::net::UdpSocket::bind("0.0.0.0:0").await {
 					Ok(udp_socket) => loop {

node/network/availability-distribution/src/tests/state.rs

@@ -197,7 +197,8 @@ impl TestState {
 		// lock ;-)
 		let update_tx = tx.clone();
 		harness.pool.spawn(
-			"Sending active leaves updates",
+			"sending-active-leaves-updates",
+			None,
 			async move {
 				for update in updates {
 					overseer_signal(update_tx.clone(), OverseerSignal::ActiveLeaves(update)).await;
@@ -308,7 +309,8 @@ fn to_incoming_req(
 			let (tx, rx): (oneshot::Sender<netconfig::OutgoingResponse>, oneshot::Receiver<_>) =
 				oneshot::channel();
 			executor.spawn(
-				"Message forwarding",
+				"message-forwarding",
+				None,
 				async {
 					let response = rx.await;
 					let payload = response.expect("Unexpected canceled request").result;

node/network/availability-recovery/src/lib.rs

@@ -782,7 +782,7 @@ where
 		awaiting: vec![response_sender],
 	});
 
-	if let Err(e) = ctx.spawn("recovery task", Box::pin(remote)) {
+	if let Err(e) = ctx.spawn("recovery-task", Box::pin(remote)) {
 		tracing::warn!(
 			target: LOG_TARGET,
 			err = ?e,

node/overseer/overseer-gen/examples/dummy.rs

@@ -102,12 +102,22 @@ struct Xxx {
 struct DummySpawner;
 
 impl SpawnNamed for DummySpawner {
-	fn spawn_blocking(&self, name: &'static str, _future: futures::future::BoxFuture<'static, ()>) {
-		unimplemented!("spawn blocking {}", name)
+	fn spawn_blocking(
+		&self,
+		task_name: &'static str,
+		subsystem_name: Option<&'static str>,
+		_future: futures::future::BoxFuture<'static, ()>,
+	) {
+		unimplemented!("spawn blocking {} {}", task_name, subsystem_name.unwrap_or("default"))
 	}
 
-	fn spawn(&self, name: &'static str, _future: futures::future::BoxFuture<'static, ()>) {
-		unimplemented!("spawn {}", name)
+	fn spawn(
+		&self,
+		task_name: &'static str,
+		subsystem_name: Option<&'static str>,
+		_future: futures::future::BoxFuture<'static, ()>,
+	) {
+		unimplemented!("spawn {} {}", task_name, subsystem_name.unwrap_or("default"))
 	}
 }
 

node/overseer/overseer-gen/proc-macro/src/impl_builder.rs

@@ -337,7 +337,7 @@ pub(crate) fn impl_builder(info: &OverseerInfo) -> proc_macro2::TokenStream {
 					// TODO generate a builder pattern that ensures this
 					// TODO https://github.com/paritytech/polkadot/issues/3427
 					let #subsystem_name = match self. #subsystem_name {
-						 FieldInitMethod::Fn(func) => func(handle.clone())?,
+						FieldInitMethod::Fn(func) => func(handle.clone())?,
 						FieldInitMethod::Value(val) => val,
 						FieldInitMethod::Uninitialized =>
 							panic!("All subsystems must exist with the builder pattern."),
@@ -349,11 +349,18 @@ pub(crate) fn impl_builder(info: &OverseerInfo) -> proc_macro2::TokenStream {
 						#channel_name_rx, #channel_name_unbounded_rx
 					);
 					let (signal_tx, signal_rx) = #support_crate ::metered::channel(SIGNAL_CHANNEL_CAPACITY);
+
+					// Generate subsystem name based on overseer field name.
+					let mut subsystem_string = String::from(stringify!(#subsystem_name));
+					// Convert owned `snake case` string to a `kebab case` static str.
+					let subsystem_static_str = Box::leak(subsystem_string.replace("_", "-").into_boxed_str());
+
 					let ctx = #subsyste_ctx_name::< #consumes >::new(
 						signal_rx,
 						message_rx,
 						channels_out.clone(),
 						to_overseer_tx.clone(),
+						subsystem_static_str
 					);
 
 					let #subsystem_name: OverseenSubsystem< #consumes > =
@@ -364,6 +371,7 @@ pub(crate) fn impl_builder(info: &OverseerInfo) -> proc_macro2::TokenStream {
 							unbounded_meter,
 							ctx,
 							#subsystem_name,
+							subsystem_static_str,
 							&mut running_subsystems,
 						)?;
 				)*
@@ -489,22 +497,22 @@ pub(crate) fn impl_task_kind(info: &OverseerInfo) -> proc_macro2::TokenStream {
 		/// Task kind to launch.
 		pub trait TaskKind {
 			/// Spawn a task, it depends on the implementer if this is blocking or not.
-			fn launch_task<S: SpawnNamed>(spawner: &mut S, name: &'static str, future: BoxFuture<'static, ()>);
+			fn launch_task<S: SpawnNamed>(spawner: &mut S, task_name: &'static str, subsystem_name: &'static str, future: BoxFuture<'static, ()>);
 		}
 
 		#[allow(missing_docs)]
 		struct Regular;
 		impl TaskKind for Regular {
-			fn launch_task<S: SpawnNamed>(spawner: &mut S, name: &'static str, future: BoxFuture<'static, ()>) {
-				spawner.spawn(name, future)
+			fn launch_task<S: SpawnNamed>(spawner: &mut S, task_name: &'static str, subsystem_name: &'static str, future: BoxFuture<'static, ()>) {
+				spawner.spawn(task_name, Some(subsystem_name), future)
 			}
 		}
 
 		#[allow(missing_docs)]
 		struct Blocking;
 		impl TaskKind for Blocking {
-			fn launch_task<S: SpawnNamed>(spawner: &mut S, name: &'static str, future: BoxFuture<'static, ()>) {
-				spawner.spawn_blocking(name, future)
+			fn launch_task<S: SpawnNamed>(spawner: &mut S, task_name: &'static str, subsystem_name: &'static str, future: BoxFuture<'static, ()>) {
+				spawner.spawn(task_name, Some(subsystem_name), future)
 			}
 		}
 
@@ -517,6 +525,7 @@ pub(crate) fn impl_task_kind(info: &OverseerInfo) -> proc_macro2::TokenStream {
 			unbounded_meter: #support_crate ::metered::Meter,
 			ctx: Ctx,
 			s: SubSys,
+			subsystem_name: &'static str,
 			futures: &mut #support_crate ::FuturesUnordered<BoxFuture<'static, ::std::result::Result<(), #error_ty> >>,
 		) -> ::std::result::Result<OverseenSubsystem<M>, #error_ty >
 		where
@@ -540,7 +549,7 @@ pub(crate) fn impl_task_kind(info: &OverseerInfo) -> proc_macro2::TokenStream {
 				let _ = tx.send(());
 			});
 
-			<TK as TaskKind>::launch_task(spawner, name, fut);
+			<TK as TaskKind>::launch_task(spawner, name, subsystem_name, fut);
 
 			futures.push(Box::pin(
 				rx.map(|e| {

node/overseer/overseer-gen/proc-macro/src/impl_misc.rs

@@ -112,6 +112,7 @@ pub(crate) fn impl_misc(info: &OverseerInfo) -> proc_macro2::TokenStream {
 				>,
 			signals_received: SignalsReceived,
 			pending_incoming: Option<(usize, M)>,
+			name: &'static str
 		}
 
 		impl<M> #subsystem_ctx_name<M> {
@@ -121,6 +122,7 @@ pub(crate) fn impl_misc(info: &OverseerInfo) -> proc_macro2::TokenStream {
 				messages: SubsystemIncomingMessages<M>,
 				to_subsystems: ChannelsOut,
 				to_overseer: #support_crate ::metered::UnboundedMeteredSender<#support_crate:: ToOverseer>,
+				name: &'static str
 			) -> Self {
 				let signals_received = SignalsReceived::default();
 				#subsystem_ctx_name {
@@ -133,8 +135,13 @@ pub(crate) fn impl_misc(info: &OverseerInfo) -> proc_macro2::TokenStream {
 					to_overseer,
 					signals_received,
 					pending_incoming: None,
+					name
 				}
 			}
+
+			fn name(&self) -> &'static str {
+				self.name
+			}
 		}
 
 		#[#support_crate ::async_trait]
@@ -229,6 +236,7 @@ pub(crate) fn impl_misc(info: &OverseerInfo) -> proc_macro2::TokenStream {
 			{
 				self.to_overseer.unbounded_send(#support_crate ::ToOverseer::SpawnJob {
 					name,
+					subsystem: Some(self.name()),
 					s,
 				}).map_err(|_| #support_crate ::OverseerError::TaskSpawn(name))?;
 				Ok(())
@@ -239,6 +247,7 @@ pub(crate) fn impl_misc(info: &OverseerInfo) -> proc_macro2::TokenStream {
 			{
 				self.to_overseer.unbounded_send(#support_crate ::ToOverseer::SpawnBlockingJob {
 					name,
+					subsystem: Some(self.name()),
 					s,
 				}).map_err(|_| #support_crate ::OverseerError::TaskSpawn(name))?;
 				Ok(())

node/overseer/overseer-gen/src/lib.rs

@@ -111,6 +111,8 @@ pub enum ToOverseer {
 	SpawnJob {
 		/// Name of the task to spawn which be shown in jaeger and tracing logs.
 		name: &'static str,
+		/// Subsystem of the task to spawn which be shown in jaeger and tracing logs.
+		subsystem: Option<&'static str>,
 		/// The future to execute.
 		s: BoxFuture<'static, ()>,
 	},
@@ -120,6 +122,8 @@ pub enum ToOverseer {
 	SpawnBlockingJob {
 		/// Name of the task to spawn which be shown in jaeger and tracing logs.
 		name: &'static str,
+		/// Subsystem of the task to spawn which be shown in jaeger and tracing logs.
+		subsystem: Option<&'static str>,
 		/// The future to execute.
 		s: BoxFuture<'static, ()>,
 	},
@@ -128,8 +132,12 @@ pub enum ToOverseer {
 impl fmt::Debug for ToOverseer {
 	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 		match self {
-			Self::SpawnJob { name, .. } => writeln!(f, "SpawnJob{{ {}, ..}}", name),
-			Self::SpawnBlockingJob { name, .. } => writeln!(f, "SpawnBlockingJob{{ {}, ..}}", name),
+			Self::SpawnJob { name, subsystem, .. } => {
+				writeln!(f, "SpawnJob{{ {}, {} ..}}", name, subsystem.unwrap_or("default"))
+			},
+			Self::SpawnBlockingJob { name, subsystem, .. } => {
+				writeln!(f, "SpawnBlockingJob{{ {}, {} ..}}", name, subsystem.unwrap_or("default"))
+			},
 		}
 	}
 }

node/overseer/src/lib.rs

@@ -562,7 +562,10 @@ where
 
 		futures::future::ready(())
 	});
-	overseer.spawner().spawn("metrics_metronome", Box::pin(metronome));
+	overseer
+		.spawner()
+		.spawn("metrics-metronome", Some("overseer"), Box::pin(metronome));
+
 	Ok(())
 }
 
@@ -616,11 +619,11 @@ where
 				},
 				msg = self.to_overseer_rx.select_next_some() => {
 					match msg {
-						ToOverseer::SpawnJob { name, s } => {
-							self.spawn_job(name, s);
+						ToOverseer::SpawnJob { name, subsystem, s } => {
+							self.spawn_job(name, subsystem, s);
 						}
-						ToOverseer::SpawnBlockingJob { name, s } => {
-							self.spawn_blocking_job(name, s);
+						ToOverseer::SpawnBlockingJob { name, subsystem, s } => {
+							self.spawn_blocking_job(name, subsystem, s);
 						}
 					}
 				},
@@ -772,11 +775,21 @@ where
 		}
 	}
 
-	fn spawn_job(&mut self, name: &'static str, j: BoxFuture<'static, ()>) {
-		self.spawner.spawn(name, j);
+	fn spawn_job(
+		&mut self,
+		task_name: &'static str,
+		subsystem_name: Option<&'static str>,
+		j: BoxFuture<'static, ()>,
+	) {
+		self.spawner.spawn(task_name, subsystem_name, j);
 	}
 
-	fn spawn_blocking_job(&mut self, name: &'static str, j: BoxFuture<'static, ()>) {
-		self.spawner.spawn_blocking(name, j);
+	fn spawn_blocking_job(
+		&mut self,
+		task_name: &'static str,
+		subsystem_name: Option<&'static str>,
+		j: BoxFuture<'static, ()>,
+	) {
+		self.spawner.spawn_blocking(task_name, subsystem_name, j);
 	}
 }