Hi,
The command strace is mainly for tracing system call.
Does someone know the equivalent for tracing interruption like IRQ14...
Thanks
views:
143answers:
4
+2
A:
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?
mvds
2010-07-29 01:40:42
I would like to know all interrupt that occur during an execution
mathk
2010-07-29 06:49:23
an execution of who? please be a little more specific.
mvds
2010-07-29 10:35:15
like the stract.`$ strace ls`
mathk
2010-07-31 09:42:43
You said that, yes. Strace shows system calls: things a program needs to be done by the kernel, such as I/O. Now, the question is: what are you looking for? Interrupts are hardware signals, and you can at the very least count them. That's what you can use `/proc/interrupts` for. What do you want to see, other than that?
mvds
2010-08-01 00:26:00
+2
A:
strace is only useful for tracing userspace activity. In order to trace interrupts properly you need an in-kernel tracing solution. Check out the following. ftrace is probably your best bet. Note, however, that these have a fairly high learning curve, but that is expected.
SystemTap is also a good choice.
Noah Watkins
2010-08-03 16:19:00