On Wed, 6 Nov 2013 11:40:15 +0800, David Crayford wrote:
>Are there any traces for zLinux which report
>hardware/software interrupts?
A random trace for example (note this is a function_graph so gives duration
rather than raw timestamps) ...
[me@laptop ~]# cat /sys/kernel/debug/tracing/trace | head -40
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
5) | clockevents_program_event() {
5) 0.280 us | ktime_get();
5) 0.148 us | lapic_next_event();
5) 2.263 us | }
5) 3.851 us | } /* tick_program_event */
5) 0.135 us | _raw_spin_unlock_irqrestore();
5) + 10.227 us | } /* tick_broadcast_oneshot_control */
5) + 11.274 us | } /* tick_notify */
5) + 12.342 us | } /* notifier_call_chain */
5) + 13.285 us | } /* __raw_notifier_call_chain */
5) + 14.228 us | } /* raw_notifier_call_chain */
5) 0.156 us | _raw_spin_unlock_irqrestore();
Shane ...
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