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Diffstat (limited to 'docs/modules/ROOT/pages/runtime.adoc')
| -rw-r--r-- | docs/modules/ROOT/pages/runtime.adoc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/docs/modules/ROOT/pages/runtime.adoc b/docs/modules/ROOT/pages/runtime.adoc index 2704f298..8351fd0d 100644 --- a/docs/modules/ROOT/pages/runtime.adoc +++ b/docs/modules/ROOT/pages/runtime.adoc @@ -1,3 +1,11 @@ = Embassy runtime -TODO +The Embassy excecutor is an async/await executor designed for embedded usage. + +* No `alloc`, no heap needed. Task futures are statically allocated. +* No "fixed capacity" data structures, executor works with 1 or 1000 tasks without needing config/tuning. +* Integrated timer queue: sleeping is easy, just do `Timer::after(Duration::from_secs(1)).await;`. +* No busy-loop polling: CPU sleeps when there's no work to do, using interrupts or `WFE/SEV`. +* Efficient polling: a wake will only poll the woken task, not all of them. +* Fair: a task can't monopolize CPU time even if it's constantly being woken. All other tasks get a chance to run before a given task gets polled for the second time. +* Creating multiple executor instances is supported, to run tasks with multiple priority levels. This allows higher-priority tasks to preempt lower-priority tasks. |