XenOprof not coming out of Timer Mode

XenOprof not coming out of Timer Mode

[dhara buch]

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Hello,

I have installed Xen 4.9-unstable with source on Ubuntu 15.10 and uses
4.2.0-42-generic kernel.

Before installing Xen, I used perf to check which events are supported.I
found that hardware event are supported by it. Now, I want to use
performance counters from virtual machine, so after installing Xen,I
installed XenOprof which allows to access performance counter through
virtual layer also.

When I executed the following command, I got the message that OProfile is
in timer mode.


sudo opcontrol --start-daemon --event=GLOBAL_POWER_EVENTS
--vmlinux=/home/dhbuch/vmlinux --xen=/home/dhbuch/xen-4.9-unstable


As per the documentation, timer mode is set automatically when hardware
events are not supported by the kernel, but through perf it was tested that
hardware events are supported.

Kindly help to come out of the timer mode so that performance counter
values can be monitored.

Thank you,

Dhara Buch

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