Fix spans for system

Author: stepancheg

crates/bevy_ecs/src/system/commands/mod.rs

@@ -9,7 +9,7 @@ use crate::{
     world::{EntityWorldMut, FromWorld, World},
 };
 use bevy_ecs_macros::SystemParam;
-use bevy_utils::tracing::{error, info};
+use bevy_utils::tracing::{error, info, info_span};
 pub use command_queue::CommandQueue;
 pub use parallel_scope::*;
 use std::marker::PhantomData;
@@ -119,7 +119,7 @@ impl SystemBuffer for CommandQueue {
     #[inline]
     fn apply(&mut self, _system_meta: &SystemMeta, world: &mut World) {
         #[cfg(feature = "trace")]
-        let _span_guard = _system_meta.commands_span.enter();
+        let _span_guard = info_span!("system_commands", name = _system_meta.name()).entered();
         self.apply(world);
     }
 }

crates/bevy_ecs/src/system/commands/parallel_scope.rs

@@ -1,5 +1,6 @@
 use std::cell::Cell;
 
+use bevy_utils::tracing::info_span;
 use thread_local::ThreadLocal;
 
 use crate::{
@@ -52,7 +53,7 @@ impl SystemBuffer for ParallelCommandQueue {
     #[inline]
     fn apply(&mut self, _system_meta: &SystemMeta, world: &mut World) {
         #[cfg(feature = "trace")]
-        let _system_span = _system_meta.commands_span.enter();
+        let _system_span = info_span!("system_commands", name = _system_meta.name()).entered();
         for cq in &mut self.thread_local_storage {
             cq.get_mut().apply(world);
         }

crates/bevy_ecs/src/system/exclusive_function_system.rs

@@ -11,6 +11,7 @@ use crate::{
 };
 
 use bevy_utils::all_tuples;
+use bevy_utils::tracing::info_span;
 use std::{any::TypeId, borrow::Cow, marker::PhantomData};
 
 /// A function system that runs with exclusive [`World`] access.
@@ -106,7 +107,7 @@ where
 
     fn run(&mut self, input: Self::In, world: &mut World) -> Self::Out {
         #[cfg(feature = "trace")]
-        let _span_guard = self.system_meta.system_span.enter();
+        let _span_guard = info_span!("system", name = self.name().as_ref()).entered();
 
         let saved_last_tick = world.last_change_tick;
         world.last_change_tick = self.system_meta.last_run;

crates/bevy_ecs/src/system/function_system.rs

@@ -9,11 +9,9 @@ use crate::{
 };
 
 use bevy_utils::all_tuples;
+use bevy_utils::tracing::info_span;
 use std::{any::TypeId, borrow::Cow, marker::PhantomData};
 
-#[cfg(feature = "trace")]
-use bevy_utils::tracing::{info_span, Span};
-
 use super::{In, IntoSystem, ReadOnlySystem};
 
 /// The metadata of a [`System`].
@@ -27,10 +25,6 @@ pub struct SystemMeta {
     is_send: bool,
     has_deferred: bool,
     pub(crate) last_run: Tick,
-    #[cfg(feature = "trace")]
-    pub(crate) system_span: Span,
-    #[cfg(feature = "trace")]
-    pub(crate) commands_span: Span,
 }
 
 impl SystemMeta {
@@ -43,10 +37,6 @@ impl SystemMeta {
             is_send: true,
             has_deferred: false,
             last_run: Tick::new(0),
-            #[cfg(feature = "trace")]
-            system_span: info_span!("system", name = name),
-            #[cfg(feature = "trace")]
-            commands_span: info_span!("system_commands", name = name),
         }
     }
 
@@ -486,7 +476,7 @@ where
     #[inline]
     unsafe fn run_unsafe(&mut self, input: Self::In, world: UnsafeWorldCell) -> Self::Out {
         #[cfg(feature = "trace")]
-        let _span_guard = self.system_meta.system_span.enter();
+        let _span_guard = info_span!("system", name = self.name().as_ref()).entered();
 
         let change_tick = world.increment_change_tick();