Make wasm runtime cache size configurable

bin/node-template/node/src/service.rs

@@ -78,6 +78,7 @@ pub fn new_partial(
 		config.wasm_method,
 		config.default_heap_pages,
 		config.max_runtime_instances,
+		config.runtime_cache_size,
 	);
 
 	let (client, backend, keystore_container, task_manager) =

bin/node/cli/benches/block_production.rs

@@ -104,6 +104,7 @@ fn new_node(tokio_handle: Handle) -> node_cli::service::NewFullBase {
 		tracing_targets: None,
 		tracing_receiver: Default::default(),
 		max_runtime_instances: 8,
+		runtime_cache_size: 2,
 		announce_block: true,
 		base_path: Some(base_path),
 		informant_output_format: Default::default(),

bin/node/cli/benches/transaction_pool.rs

@@ -96,6 +96,7 @@ fn new_node(tokio_handle: Handle) -> node_cli::service::NewFullBase {
 		tracing_targets: None,
 		tracing_receiver: Default::default(),
 		max_runtime_instances: 8,
+		runtime_cache_size: 2,
 		announce_block: true,
 		base_path: Some(base_path),
 		informant_output_format: Default::default(),

bin/node/cli/src/service.rs

@@ -161,6 +161,7 @@ pub fn new_partial(
 		config.wasm_method,
 		config.default_heap_pages,
 		config.max_runtime_instances,
+		config.runtime_cache_size,
 	);
 
 	let (client, backend, keystore_container, task_manager) =

bin/node/executor/benches/bench.rs

@@ -194,7 +194,7 @@ fn bench_execute_block(c: &mut Criterion) {
 				ExecutionMethod::Wasm(wasm_method) => (false, wasm_method),
 			};
 
-			let executor = NativeElseWasmExecutor::new(wasm_method, None, 8);
+			let executor = NativeElseWasmExecutor::new(wasm_method, None, 8, 2);
 			let runtime_code = RuntimeCode {
 				code_fetcher: &sp_core::traits::WrappedRuntimeCode(compact_code_unwrap().into()),
 				hash: vec![1, 2, 3],

bin/node/executor/tests/common.rs

@@ -96,7 +96,7 @@ pub fn from_block_number(n: u32) -> Header {
 }
 
 pub fn executor() -> NativeElseWasmExecutor<ExecutorDispatch> {
-	NativeElseWasmExecutor::new(WasmExecutionMethod::Interpreted, None, 8)
+	NativeElseWasmExecutor::new(WasmExecutionMethod::Interpreted, None, 8, 2)
 }
 
 pub fn executor_call<

bin/node/inspect/src/command.rs

@@ -41,6 +41,7 @@ impl InspectCmd {
 			config.wasm_method,
 			config.default_heap_pages,
 			config.max_runtime_instances,
+			config.runtime_cache_size,
 		);
 
 		let client = new_full_client::<B, RA, _>(&config, None, executor)?;

bin/node/testing/src/bench.rs

@@ -400,7 +400,7 @@ impl BenchDb {
 		let backend = sc_service::new_db_backend(db_config).expect("Should not fail");
 		let client = sc_service::new_client(
 			backend.clone(),
-			NativeElseWasmExecutor::new(WasmExecutionMethod::Compiled, None, 8),
+			NativeElseWasmExecutor::new(WasmExecutionMethod::Compiled, None, 8, 2),
 			&keyring.generate_genesis(),
 			None,
 			None,

client/cli/src/commands/run_cmd.rs

@@ -238,6 +238,10 @@ pub struct RunCmd {
 	#[structopt(long)]
 	pub max_runtime_instances: Option<usize>,
 
+	/// Maximum number of different runtimes that can be cached.
+	#[structopt(long, default_value = "2")]
+	pub runtime_cache_size: u8,
+
 	/// Run a temporary node.
 	///
 	/// A temporary directory will be created to store the configuration and will be deleted
@@ -450,6 +454,10 @@ impl CliConfiguration for RunCmd {
 		Ok(self.max_runtime_instances.map(|x| x.min(256)))
 	}
 
+	fn runtime_cache_size(&self) -> Result<u8> {
+		Ok(self.runtime_cache_size)
+	}
+
 	fn base_path(&self) -> Result<Option<BasePath>> {
 		Ok(if self.tmp {
 			Some(BasePath::new_temp_dir()?)

client/cli/src/config.rs

@@ -452,6 +452,13 @@ pub trait CliConfiguration<DCV: DefaultConfigurationValues = ()>: Sized {
 		Ok(Default::default())
 	}
 
+	/// Get maximum different runtimes in cache
+	///
+	/// By default this is `2`.
+	fn runtime_cache_size(&self) -> Result<u8> {
+		Ok(2)
+	}
+
 	/// Activate or not the automatic announcing of blocks after import
 	///
 	/// By default this is `false`.
@@ -482,6 +489,7 @@ pub trait CliConfiguration<DCV: DefaultConfigurationValues = ()>: Sized {
 		let is_validator = role.is_authority();
 		let (keystore_remote, keystore) = self.keystore_config(&config_dir)?;
 		let telemetry_endpoints = self.telemetry_endpoints(&chain_spec)?;
+		let runtime_cache_size = self.runtime_cache_size()?;
 
 		let unsafe_pruning = self.import_params().map(|p| p.unsafe_pruning).unwrap_or(false);
 
@@ -534,6 +542,7 @@ pub trait CliConfiguration<DCV: DefaultConfigurationValues = ()>: Sized {
 			role,
 			base_path: Some(base_path),
 			informant_output_format: Default::default(),
+			runtime_cache_size,
 		})
 	}
 

client/executor/Cargo.toml

@@ -34,6 +34,7 @@ parking_lot = "0.11.1"
 log = "0.4.8"
 libsecp256k1 = "0.7"
 sp-core-hashing-proc-macro = { version = "4.0.0-dev", path = "../../primitives/core/hashing/proc-macro" }
+lru = "0.6.6"
 
 [dev-dependencies]
 wat = "1.0"

client/executor/src/integration_tests/mod.rs

@@ -130,6 +130,7 @@ fn call_in_wasm<E: Externalities>(
 		HostFunctions::host_functions(),
 		8,
 		None,
+		2,
 	);
 	executor.uncached_call(
 		RuntimeBlob::uncompress_if_needed(&wasm_binary_unwrap()[..]).unwrap(),
@@ -480,6 +481,7 @@ fn should_trap_when_heap_exhausted(wasm_method: WasmExecutionMethod) {
 		HostFunctions::host_functions(),
 		8,
 		None,
+		2,
 	);
 
 	let err = executor
@@ -593,6 +595,7 @@ fn parallel_execution(wasm_method: WasmExecutionMethod) {
 		HostFunctions::host_functions(),
 		8,
 		None,
+		2,
 	));
 	let threads: Vec<_> = (0..8)
 		.map(|_| {

client/executor/src/lib.rs

@@ -80,6 +80,7 @@ mod tests {
 			sp_io::SubstrateHostFunctions::host_functions(),
 			8,
 			None,
+			2,
 		);
 		let res = executor
 			.uncached_call(

client/executor/src/native_executor.rs

@@ -130,12 +130,17 @@ impl WasmExecutor {
 		host_functions: Vec<&'static dyn Function>,
 		max_runtime_instances: usize,
 		cache_path: Option<PathBuf>,
+		runtime_cache_size: u8,
 	) -> Self {
 		WasmExecutor {
 			method,
 			default_heap_pages: default_heap_pages.unwrap_or(DEFAULT_HEAP_PAGES),
 			host_functions: Arc::new(host_functions),
-			cache: Arc::new(RuntimeCache::new(max_runtime_instances, cache_path.clone())),
+			cache: Arc::new(RuntimeCache::new(
+				max_runtime_instances,
+				cache_path.clone(),
+				runtime_cache_size,
+			)),
 			cache_path,
 		}
 	}
@@ -330,6 +335,7 @@ impl<D: NativeExecutionDispatch> NativeElseWasmExecutor<D> {
 		fallback_method: WasmExecutionMethod,
 		default_heap_pages: Option<u64>,
 		max_runtime_instances: usize,
+		runtime_cache_size: u8,
 	) -> Self {
 		let extended = D::ExtendHostFunctions::host_functions();
 		let mut host_functions = sp_io::SubstrateHostFunctions::host_functions()
@@ -351,6 +357,7 @@ impl<D: NativeExecutionDispatch> NativeElseWasmExecutor<D> {
 			host_functions,
 			max_runtime_instances,
 			None,
+			runtime_cache_size,
 		);
 
 		NativeElseWasmExecutor {
@@ -636,6 +643,7 @@ mod tests {
 			WasmExecutionMethod::Interpreted,
 			None,
 			8,
+			2,
 		);
 		my_interface::HostFunctions::host_functions().iter().for_each(|function| {
 			assert_eq!(executor.wasm.host_functions.iter().filter(|f| f == &function).count(), 2);