wip

tokio/src/runtime/scheduler/multi_thread/stats.rs

@@ -1,7 +1,6 @@
 use crate::runtime::{Config, MetricsBatch, WorkerMetrics};
 
 use std::cmp;
-use std::f32::consts::E;
 use std::time::{Duration, Instant};
 
 /// Per-worker statistics. This is used for both tuning the scheduler and

tokio/src/runtime/scheduler/multi_thread/worker.rs

@@ -826,6 +826,9 @@ impl Worker {
         #[cfg(loom)]
         const ROUNDS: usize = 1;
 
+        debug_assert!(core.lifo_slot.is_none());
+        debug_assert!(core.run_queue.is_empty());
+
         if !self.transition_to_searching(cx, core) {
             return None;
         }

tokio/src/runtime/task/core.rs

@@ -29,6 +29,7 @@ use std::task::{Context, Poll, Waker};
 /// Any changes to the layout of this struct _must_ also be reflected in the
 /// const fns in raw.rs.
 #[repr(C)]
+#[repr(align(128))]
 pub(super) struct Cell<T: Future, S> {
     /// Hot task state data
     pub(super) header: Header,