stopping ftrace on event

Hi all,

I'm hunting sporadic high irq-handler latencies in a pcie driver by using ftrace. I'm currently using trace-cmd record but get way to large files due to the event being so infrequent.

Is there a way to stop tracing or dump the current trace buffer when a specific event occurs?

Thanks for your help,
Benjamin

Quoted 8 lines

Hi all,

I'm hunting sporadic high irq-handler latencies in a pcie driver by using ftrace. I'm currently using trace-cmd record but get way to large files due to the event being so infrequent.

Is there a way to stop tracing or dump the current trace buffer when a specific event occurs?

https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers ?

-- Daniel

Quoted 2 lines

Thanks for your help,
Benjamin