函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\core.c Create Date:2022-07-27 10:36:34
Last Modify:2022-05-22 13:40:38 Copyright©Brick
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函数名称：IO-wait accounting, and how its mostly bollocks (on SMP).* The idea behind IO-wait account is to account the idle time that we could* have spend running if it were not for IO. That is, if we were to improve the

函数原型：unsigned long nr_iowait(void)

返回类型：unsigned long

参数：无

3482  sum等于0
3484  遍历可用CPU(i)
3485  sum加等于Consumers of these two interfaces, like for example the cpuidle menu* governor, are using nonsensical data. Preferring shallow idle state selection* for a CPU that has IO-wait which might not even end up running the task when* it does become runnable.
3487  返回:sum