Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat

[Andi Kleen]

> 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

-Andi