On Thu, 2015-04-30 at 12:06 +0200, Daniel Wagner wrote: > Finally we place a few tracepoint at the end of critical section. With > the hist trigger in place we can generate the plots. > > There are a few drawbacks compared to the latency_hist.patch [1] > > The latency plots contain the values from all CPUs. In theory you > can also filter with something like > > 'hist:key=latency.bucket:val=hitcount:sort=latency if cpu==0' > > but I haven't got this working. I didn't spend much time figuring out > why this doesn't work. Even if the above is working you still
I think it doesn't work because the tracepoint doesn't actually have a 'cpu' field to use in the filter... Tom -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
