Can Oprofile provide timestamp info to each sample data

[seariver <sea...@ci...>]

Hi,

I'm a newuser of OProfile.
I know that Oprofile can provide such a statistic view for the performance
counters, like
-----------------------------
...
               :int fast_multiply(x, y)
    36  0.5766 :{ /* fast_multiply total:     79  1.2652 */
    26  0.4164 :        return x * y;
    17  0.2723 :}
               :
               :int slow_multiply(x, y)
...
----------------------------
I want to plot a figure like this: x-axis:time & y-axis:performance counter
at the time periods.
Can Oprofile provide these information to draw such a figure?

As I know,  when a interrupt occurs because of performance counter, Oprofile
will insert a sample into buffer. Is there time stamp in the sample?

Thanks!