On Thu, Oct 29, 2020 at 05:27:19PM +0100, Peter Zijlstra wrote:
> Hi,
>
> Andi recently added exclusive event group support to tools/perf:
>
> https://lkml.kernel.org/r/20201014144255.22699-1-a...@firstfloor.org
>
> and promptly found that they didn't work as specified.
>
> (sorry for the resend, I forgot LKML the first time)
hm, it's too late for me to check ;-) but should I be able to do
this with exclusive event.. running both command at the same time:
$ sudo ./perf stat -e cycles:e -I 1000
# time counts unit events
1.002430650 33,946,849 cycles:e
2.004920725 502,399,986 cycles:e
(67.57%)
3.007087631 859,745,048 cycles:e
(50.00%)
4.009078254 845,860,723 cycles:e
(50.00%)
5.011086104 838,457,275 cycles:e
(50.00%)
$ sudo ./perf stat -e cycles:e -I 1000
# time counts unit events
1.001665466 848,973,404 cycles:e
(50.01%)
2.003658048 856,505,255 cycles:e
(50.00%)
3.005658022 842,737,973 cycles:e
(50.00%)
4.007657797 844,800,598 cycles:e
(50.00%)
jirka
