diff --git a/aos/linux_code/init.cc b/aos/linux_code/init.cc
index d7501af..a4e72db 100644
--- a/aos/linux_code/init.cc
+++ b/aos/linux_code/init.cc
@@ -109,4 +109,12 @@
   SetSoftRLimit(RLIMIT_CORE, RLIM_INFINITY, true);
 }
 
+void SetCurrentThreadRealtimePriority(int priority) {
+  struct sched_param param;
+  param.sched_priority = priority;
+  if (sched_setscheduler(0, SCHED_FIFO, &param) == -1) {
+    PLOG(FATAL, "sched_setscheduler(0, SCHED_FIFO, %d) failed", priority);
+  }
+}
+
 }  // namespace aos
diff --git a/aos/linux_code/init.h b/aos/linux_code/init.h
index 538684e..ab1aab5 100644
--- a/aos/linux_code/init.h
+++ b/aos/linux_code/init.h
@@ -25,6 +25,9 @@
 // behavior without calling Init*.
 void WriteCoreDumps();
 
+// Sets the current thread's realtime priority.
+void SetCurrentThreadRealtimePriority(int priority);
+
 }  // namespace aos
 
 #endif  // AOS_LINUX_CODE_INIT_H_