Em Mon, May 30, 2016 at 09:04:02AM -0700, Andi Kleen escreveu: > > Which is a Broadwell-U, dual-core, 14 nm. > > > > [root@jouet linux]# echo 0 > /proc/sys/kernel/nmi_watchdog > > [root@jouet linux]# perf stat --topdown -a usleep 1 > > System does not support topdown > > [root@jouet linux]# cat /proc/sys/kernel/nmi_watchdog > > 0 > > [root@jouet linux]# > > > > Please advise. > > You don't have the kernel patches? > > They're in PeterZ's tree, but not yet in tip > https://git.kernel.org/cgit/linux/kernel/git/peterz/queue.git/log/?h=perf/core
oops, will try applying those patches, thanks for claryfing. - Arnaldo
