On Tue, Feb 16, 2016 at 01:56:01PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Feb 15, 2016 at 09:34:31AM +0100, Jiri Olsa escreveu: > > Allow user to easily switch all events to user or > > kernel space with simple --all-user or --all-kernel > > options. > > > > This will be handy within perf mem/c2c wrappers to > > switch easily monitoring modes. > > Humm, some oddities: > > # perf record --all-user -e cycles -a > # perf report --tui # And then notice there are some kernel samples, > zoom into kernel DSO > Samples: 7 of event 'cycles', Event count (approx.): 3158810, DSO: > [kernel.vmlinux] > Overhead Comman Symbol > 84.05% chrome [k] page_fault > 15.73% chrome [k] entry_SYSCALL_64 > 0.22% chrome [k] apic_timer_interrupt > > Ditto when using --all-kernel, some userspace samples are there, also perhaps > we > should show "cycles:u" or "cycles:k" when this --all-user or --all-kernel > features > are used. > > Need to investigate why there are kernel samples when --all-user is used and > the other way around as well. > > Also if I use both it quietly accepts and shows just one of them, I guess we > should bail out in case someone tries both.
right, that should be handled with warning and exit I'll do it in next version thanks, jirka
