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Give the coordinator thread a name.

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This is useful when profiling with a profiler like Samply.
This commit is contained in:
Nicholas Nethercote 2023-07-21 08:37:04 +10:00
parent 176610c2cd
commit e78fb95dfa
1 changed files with 4 additions and 3 deletions
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7
compiler/rustc_codegen_ssa/src/back/write.rs
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@ -1257,7 +1257,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
// Each LLVM module is automatically sent back to the coordinator for LTO if
// necessary. There's already optimizations in place to avoid sending work
// back to the coordinator if LTO isn't requested.
return B::spawn_thread(cgcx.time_trace, move || {
return B::spawn_named_thread(cgcx.time_trace, "coordinator".to_string(), move || {
let mut worker_id_counter = 0;
let mut free_worker_ids = Vec::new();
let mut get_worker_id = |free_worker_ids: &mut Vec<usize>| {
@ -1625,7 +1625,8 @@ fn start_executing_work<B: ExtraBackendMethods>(
modules: compiled_modules,
allocator_module: compiled_allocator_module,
})
});
})
.expect("failed to spawn coordinator thread");
// A heuristic that determines if we have enough LLVM WorkItems in the
// queue so that the main thread can do LLVM work instead of codegen
@ -1758,7 +1759,7 @@ fn spawn_work<B: ExtraBackendMethods>(cgcx: CodegenContext<B>, work: WorkItem<B>
})
};
})
.expect("failed to spawn thread");
.expect("failed to spawn work thread");
}
enum SharedEmitterMessage {