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Xingyu Wang 2021-09-05 15:39:22 +08:00
parent 8efb02966d
commit d3e3d25b8d
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published/20210727 Analyze the Linux kernel with ftrace.md
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@ -156,7 +156,7 @@ function
$ sudo cat current_tracer $ sudo cat current_tracer
function function
$ sudo echo nop > current_tracer $ sudo echo nop > current_tracer
$ sudo cat current_tracer $ sudo cat current_tracer
nop nop
@ -167,7 +167,7 @@ nop
现在尝试第二个名为 `function_graph` 的追踪器。你可以使用和上面相同的步骤：在 `current_tracer` 文件中写入 `function_graph`： 现在尝试第二个名为 `function_graph` 的追踪器。你可以使用和上面相同的步骤：在 `current_tracer` 文件中写入 `function_graph`：
``` ```
$ sudo echo function_graph > current_tracer $ sudo echo function_graph > current_tracer
$ sudo cat current_tracer $ sudo cat current_tracer
function_graph function_graph