Re: perf: h/w counters not counted and no error/info reported to user

[Ashwin Chaugule]

Hi David,

On Fri, May 27, 2011 at 12:36 PM, David Ahern <dsahern@xxxxxxxxx> wrote:
>
> Ok, I got it now. On some occasions for simple programs -- like sleep 1
> -- the counter reads show:
>
> cycles: 0 1066485 0
>
> While the counter value is non-0, the time enabled and running values
> are 0 and those latter two are used by stat to say "not-counted".

I've seen time-enabled = 0 too, but I suspected that's because on my
kernel the sched_clock implementation was missing. (defaults to a
jiffies based timer)
I saw your patch for initializing the fd's to -1's, but I'm unable to
see how that makes the value of time-enabled non zero ?

Cheers,
Ashwin
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