On Tue, 9 Jun 2015, David Ahern wrote: > On 6/9/15 12:30 PM, Vince Weaver wrote: > > Hello > > > > I've been working on documenting the PERF_EVENT_IOC_SET_FILTER ioctl. > > > > I've been trying for the past 2 days and have been unable to get any > > result except EINVAL. > > > > Does anyone ever use this ioctl? Does anyone know how to use this ioctl? > > yes and yes it works. > > perf record -e irq:irq_handler_entry --filter irq==28 \ > -e irq:softirq_entry --filter vec==6 -a \ > -- sleep 5
# perf record -e irq:irq_handler_entry --filter irq==28 -e irq:softirq_entry --filter vec==6 -a -- sleep 5 invalid or unsupported event: 'irq:irq_handler_entry' Run 'perf list' for a list of valid events perf list doesn't show any tracepoint events, despite having debugfs mounted and running as root and /sys/kernel/debug/tracing/events/ being populated. Vince -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
