> BTW, could someone give a brief summary of why idle=poll is needed for
> oprofile, I'd love to add it do the "documentation for dummies" file I
> was writing.
Because events like CPU_CLK_UNHALTED don't tick when the cpu is halted,
so the idle time doesn't show up properly in the kernel profile.
idle=poll doesn't hlt so the profile for poll_idle() reflects the actual
idle percentage.
Something like that anyway.
john
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/