---
title: Spin函数
description: "- x86平台"
url: https://www.hikunpeng.com/document/detail/zh/kunpengdbs/ecosystemEnable/databasepg/kunpengdbsolution_12_0016.html
sourcePath: /source/zh/kunpengdbs/ecosystemEnable/databasepg/kunpengdbsolution_12_0016.html
indexId: 85a1bea3b914fe4ff35d828ad9abb8ab5d1a056168966076df71f3a1d1f8179979
---
# Spin函数

- x86平台
  1 define UT_RELAX_CPU() __asm__ __volatile__("pause")


- AArch64平台
  1 define UT_RELAX_CPU() __asm__ __volatile__("" ::: "memory")