函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\tsc.c Create Date:2022-07-27 08:46:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Generate a sched_clock if you already have a TSC value.

函数原型：u64 native_sched_clock_from_tsc(u64 tsc)

返回类型：u64

参数：

类型参数名称
u64tsc
237  返回:Accelerators for sched_clock()* convert from cycles(64bits) => nanoseconds (64bits)* basic equation:* ns = cycles / (freq / ns_per_sec)* ns = cycles * (ns_per_sec / freq)* ns = cycles * (10^9 / (cpu_khz * 10^3))* ns = cycles * (10^6 / cpu_khz)