红帽全球峰会14.4. rtla timerlat 顶部 tracer 选项
通过使用 rtla timerlat top --help 命令，您可以查看 rtla-timerlat-top tracer 选项的帮助用法。
timerlat-top-tracer 选项
- -p,--period us
-
以微秒为单位设置
timerlat追踪器周期。 - -i, --irq us
- 如果中断请求(IRQ)延迟超过微秒中的参数，则停止追踪。
- -t, --thread us
- 如果线程延迟超过微秒中的参数，则停止追踪。
- -t,--trace
-
将已停止的 trace 保存到
timerlat_trace.txt文件。 - -s, --stack us
- 如果线程延迟超过参数，请在中断请求(IRQ)中保存堆栈跟踪。
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