Re: [perfmon2] Question about "pfmon ls /dev/null"

[stephane e. <er...@go...>]

Hi,
You get this error message because you have another perfmon session on your
system. Check with ps, or cat /sys/kernel/perfmon/sys_session_count.

On Mar 24, 2009 9:52 AM, "J Green" <gre...@gm...> wrote:

Hi, All:

      when I use "pfmon ls /dev/null" in command line, it shows "error
concurrent system-wide monitoring session exists" why I can not see the
information just like:

      /dev/null
      620458 CPU_CYCLES?

Thanks.

lucy


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