On Wed, 29 Nov 2006 17:09:39 +0000 Christoph Hellwig <[EMAIL PROTECTED]> wrote:
> On Wed, Nov 29, 2006 at 08:25:40AM -0800, Stephane Eranian wrote: > > Hello, > > > > Here is a patch that adds an idle notifier to the i386 tree. > > The idle notifier functionalities and implementation are > > identical to the x86_64 idle notifier. We use the idle notifier > > in the context of perfmon. > > > > The patch is against Andi Kleen's x86_64-2.6.19-rc6-061128-1.bz2 > > kernel. It may apply to other kernels but it needs some updates > > to poll_idle() and default_idle() to work correctly. > > Walking through a notifier chain on every single interrupt (including > timer interrupts) seems rather costly. What do you need this for > exactly? yes, it's a worry. Why doesn't enter_idle() do the test_and_set_bit() thing, like exit_idle()? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
