Re: [PATCH] lockdep: Add nr_save_trace_invocations counter
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On Fri, 2010-04-23 at 09:24 +0200, John Kacur wrote:
> direct dependencies: 8752 [max: 16384]
> I have
> stack-trace invocations: 10888
> from the same run.
>
> Still trying to figure out what the meaning is of that though to be
> honest.
>
> Here is a portion of the lockdep_stats, with all of the new fields and the
> redundant ones.
>
> stack-trace invocations: 10888
> LOCK_USED_IN_HARDIRQ: 15
> LOCK_USED_IN_HARDIRQ_READ: 0
> LOCK_ENABLED_HARDIRQ: 543
> LOCK_ENABLED_HARDIRQ_READ: 28
> LOCK_USED_IN_SOFTIRQ: 0
> LOCK_USED_IN_SOFTIRQ_READ: 0
> LOCK_ENABLED_SOFTIRQ: 543
> LOCK_ENABLED_SOFTIRQ_READ: 28
> LOCK_USED_IN_RECLAIM_FS: 5
> LOCK_USED_IN_RECLAIM_FS_READ: 0
> LOCK_ENABLED_RECLAIM_FS: 95
> LOCK_ENABLED_RECLAIM_FS_READ: 8
> LOCK_USED: 871
8752+871+8+95+5+28+543+28+543+15=10888
So you get a stack-trace for each direct-dependency, and you get a
stack-trace for each LOCK_state, the sum seems to match the total
invocations.
Non of these numbers look strange..
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