函数逻辑报告 |
Source Code:mm\page-writeback.c |
Create Date:2022-07-27 15:33:27 |
Last Modify:2022-05-23 13:25:58 | Copyright©Brick |
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函数名称:wb_update_write_bandwidth
函数原型:static void wb_update_write_bandwidth(struct bdi_writeback *wb, unsigned long elapsed, unsigned long written)
返回类型:void
参数:
类型 | 参数 | 名称 |
---|---|---|
struct bdi_writeback * | wb | |
unsigned long | elapsed | |
unsigned long | written |
1102 | bw等于written减两数取小(written, pages written at bw_time_stamp ) |
1104 | 如果此条件成立可能性小(为编译器优化)(elapsed > period)则 |
1109 | bw加等于he estimated write bandwidth 乘period减elapsed的差 |
1121 | out : |
1124 | 如果wb_has_dirty_io(wb)则 |
1126 | WARN_ON_ONCE(atomic_long_add_return(delta, & tot_write_bandwidth) <= 0) |
1129 | he estimated write bandwidth 等于bw |
1130 | urther smoothed write bw, > 0 等于avg |
名称 | 描述 |
---|---|
__wb_update_bandwidth |
源代码转换工具 开放的插件接口 | X |
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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 |