Re: [Linux-ia64] What's taking all the system time..?

["Niels Christiansen" <nchr@us.ibm.com>]

Oops, forgot to mention these two lines.  They represent trace
overhead because my kernel is instrumented to trace all function
entry and exit points.  All it means is that 9.92 + 9.33 percent
of the time spent in your process is trace overhead.  It should
not skew the relative weight of the other profile data.

   4696    9.92    2.38  kernel __cyg_profile_func_enter []
   4416    9.33    2.24  kernel __cyg_profile_func_exit []

I also checked lock stats.  You wait for and hold locks less
than 150 msecs.  What I can't explain is why the system is 60%
busy (although I know that ACPI handlers keep one processor
100% busy).

-----------------------------------------------------------------
    LTC Whydle Version 1.0.3 *** PROCESSOR TIME DISTRIBUTION
-----------------------------------------------------------------

             Total   TID-0   Other  non-IRQ
CPU  Idle %  Busy %  IRQ %   IRQ %   Busy %
--- ------- ------- ------- ------- -------
  0  62.649  37.351   0.000   0.000  37.351
  1  43.502  56.498   0.000   0.000  56.498
  2   0.000 100.000   0.000   0.000 100.000
  3  55.906  44.094   0.000   0.000  44.094
    ------- ------- ------- ------- -------
     40.514  59.486   0.000   0.000  59.486

... Niels