Em Mon, Nov 20, 2017 at 03:21:01PM -0800, Stephane Eranian escreveu: > On Mon, Nov 20, 2017 at 2:50 PM, Milian Wolff <[email protected]> wrote: > > On Montag, 20. November 2017 21:53:04 CET Stephane Eranian wrote: > >> Hi, > >> > >> I have been using the perf script -F option on the latest perf and I > >> find it not very convenient to use. I appreciate the + and - prefix to > >> field names to add or suppress them. But most of the time, I want to > >> print only one or two fields and I have to guess which ones are there > >> by default so I can suppress them. I think there should be a way to > >> say: start from no fields. I understand why you have default to > >> maintain compatibility with older perf script but I would like a > >> syntax to say: remove defaults. For instance: > >> > >> $ perf script -F --,+ip,+syms ..... > >> > >> Where -- would mean drop all defaults. > >> > >> Any better suggestions? > > > > Isn't `perf script -F ip,sym` what you want? Note the lack of any '+': > > > > $ perf script -F ip,sym | head -n 5 > > > > 206aad x86_pmu_enable > > 380591 ctx_resched > > 380b46 __perf_event_enable > > 378716 event_function > > > Ah, yes, looks like it. > problem solved then. > Thanks.
Even more intuitive :-) - Arnaldo
