linux-kernel - Re: [PATCH] lockdep: Make lockstats counting per cpu

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Message-ID: <20100326091639.GG27394@elte.hu>
Date:	Fri, 26 Mar 2010 10:16:39 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH] lockdep: Make lockstats counting per cpu


* Frederic Weisbecker <fweisbec@...il.com> wrote:

> +DEFINE_PER_CPU(local_t, chain_lookup_hits);
> +DEFINE_PER_CPU(local_t, chain_lookup_misses);
> +DEFINE_PER_CPU(local_t, hardirqs_on_events);
> +DEFINE_PER_CPU(local_t, hardirqs_off_events);
> +DEFINE_PER_CPU(local_t, redundant_hardirqs_on);
> +DEFINE_PER_CPU(local_t, redundant_hardirqs_off);
> +DEFINE_PER_CPU(local_t, softirqs_on_events);
> +DEFINE_PER_CPU(local_t, softirqs_off_events);
> +DEFINE_PER_CPU(local_t, redundant_softirqs_on);
> +DEFINE_PER_CPU(local_t, redundant_softirqs_off);
> +DEFINE_PER_CPU(local_t, nr_unused_locks);
> +DEFINE_PER_CPU(local_t, nr_cyclic_checks);
> +DEFINE_PER_CPU(local_t, nr_find_usage_forwards_checks);
> +DEFINE_PER_CPU(local_t, nr_find_usage_backwards_checks);

btw., i think this should really be cleaned up and put into a helper struct.

'struct lockdep_stats' or so?

	Ingo
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