Messages in this thread | | | Date | Fri, 3 Oct 2008 05:25:04 +0200 | From | Andi Kleen <> | Subject | Re: [RFC patch 0/5] genirq: add infrastructure for threaded interrupt handlers |
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On Thu, Oct 02, 2008 at 03:33:05PM -0700, Arjan van de Ven wrote: > On Thu, 2 Oct 2008 14:31:46 -0700 > Greg KH <greg@kroah.com> wrote: > > > On Thu, Oct 02, 2008 at 04:46:09PM +0200, Andi Kleen wrote: > > > Thomas Gleixner <tglx@linutronix.de> writes: > > > > > > > > - move long running handlers out of the hard interrupt context > > > > > > I'm not sure I'm really looking forward to this brave new world > > > of very long running interrupt handlers. e.g. what do you > > > do for example when some handler blocks for a very long time? > > > > We have this issue today with some irqs (USB is known for issue > > here...) > > > > So I don't think this is a big issue, and in the end, a better idea as > > it might force us to confront some of the big abusers and fix them. > > > > one of the things irq threads gives you is that 'top' will show you > which ones are eating cpu ;-)
oprofile does that job fine already and is imho any time preferable for detailed analysis.
-andi
-- ak@linux.intel.com
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