Messages in this thread | | | Date | Wed, 25 Jul 2007 17:46:28 +0200 | From | John Sigler <> | Subject | Re: Pin-pointing the root of unusual application latencies |
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Karsten Wiese wrote:
> John Sigler wrote: > >> Is there some form of priority inheritance? Does the IRQ handler get a >> priority boost if a high priority task is waiting for it? > > No. But that would be "nice to have".
No to the first question? to the second question? or to both? :-)
In kernel/futex.c does "PI" stand for Priority Inheritance?
e.g.
/* * Priority Inheritance state: */ struct futex_pi_state { /* * list of 'owned' pi_state instances - these have to be * cleaned up in do_exit() if the task exits prematurely: */ struct list_head list;
/* * The PI object: */ struct rt_mutex pi_mutex;
struct task_struct *owner; atomic_t refcount;
union futex_key key; }; - 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/
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