函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:50:51
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：update_context_time

函数原型：static void update_context_time(struct perf_event_context *ctx)

返回类型：void

参数：

类型参数名称
struct perf_event_context *ctx
1452  now等于perf_clock()
1454  Context clock, runs when context enabled.加等于now减timestamp
1455  timestamp等于now
调用者
名称描述
__perf_remove_from_contextCross CPU call to remove a performance event* We disable the event on the hardware level first. After that we* remove it from the context list.
__perf_event_disableCross CPU call to disable a performance event
ctx_sched_out
perf_event_sync_stat
__perf_event_readCross CPU call to read the hardware event
perf_event_read