Linux系统上的跟踪中断
strace命令主要用于跟踪系统调用。 有人知道 IRQ14 之类的跟踪中断的等效项吗？
谢谢
The command strace is mainly for tracing system call.
Does someone know the equivalent for tracing interruption like IRQ14...
Thanks
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strace仅用于跟踪用户空间活动。为了正确跟踪中断，您需要一个内核内跟踪解决方案。查看以下内容。 ftrace 可能是您最好的选择。但请注意，这些具有相当高的学习曲线，但这是预期的。http://lwn.net/Articles/370423/
http://www.mail-archive.com/[电子邮件受保护]/msg02422.html
http://lttng.org/
SystemTap 也是一个不错的选择。
straceis only useful for tracing userspace activity. In order to trace interrupts properly you need an in-kernel tracing solution. Check out the following.ftraceis probably your best bet. Note, however, that these have a fairly high learning curve, but that is expected.http://lwn.net/Articles/370423/
http://www.mail-archive.com/[email protected]/msg02422.html
http://lttng.org/
SystemTap is also a good choice.
我相信您正在寻找 SystemTap。不过，您可能需要修补内核以允许 SystemTap 提取您想要的信息。有点乱。
I believe you are looking for SystemTap. You may need to patch your kernel to allow SystemTap to extract the information you want, though. It's kind of a mess.
硬件中断可以使用 systemtap（或 perf 或 ftrace）进行计数：
# stap -e 'global irq;探测 kernel.trace("irq_handler_entry") {irq[$irq]<<<1}' -c WORKLOAD-COMMAND
Hardware interrupts may be counted with systemtap (or perf or ftrace):
# stap -e 'global irq; probe kernel.trace("irq_handler_entry") {irq[$irq]<<<1}' -c WORKLOAD-COMMAND您可以通过
/proc/interrupts跟踪中断数量。如果没有特定的内核黑客攻击，这可能是您可以从用户空间获得的最好的结果。您还想追踪什么？You can keep track of the number of interrupts through
/proc/interrupts. Without specific kernel hacking that's probably the best you can get from userland. What more would you want to trace?查看oprofile。
Take a look at oprofile.