dirty_poll_interval

函数名称：After a task dirtied this many pages, balance_dirty_pages_ratelimited()* will look to see if it needs to start dirty throttling.* If dirty_poll_interval is too low, big NUMA machines will call the expensive* global_zone_page_state() too often

函数原型：static unsigned long dirty_poll_interval(unsigned long dirty, unsigned long thresh)

返回类型：unsigned long

参数：

类型	参数	名称
unsigned long	dirty
unsigned long	thresh

1413

如果thresh大于dirty则返回:1UL左移log2 - log base 2 of 32-bit or a 64-bit unsigned value*@n: parameter* constant-capable log of base 2 calculation* - this can be used to initialise global variables from constant data, hence* the massive ternary operator construction* selects the (thresh - dirty)右移1位位

1416

返回:1

**调用者**
名称	描述
balance_dirty_pages	alance_dirty_pages() must be called by processes which are generating dirty* data

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告