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From: Peter Zijlstra <peterz@infradead.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>, Will Deacon <will@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Steven Rostedt <rostedt@goodmis.org>,
	Byungchul Park <byungchul.park@lge.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Radoslaw Burny <rburny@google.com>, Tejun Heo <tj@kernel.org>,
	rcu <rcu@vger.kernel.org>, cgroups <cgroups@vger.kernel.org>,
	linux-btrfs <linux-btrfs@vger.kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	"Paul E. McKenney" <paulmck@kernel.org>
Subject: Re: [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1)
Date: Fri, 11 Feb 2022 11:39:13 +0100	[thread overview]
Message-ID: <20220211103913.GR23216@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <CAM9d7cgPFLjQyopX04MwG6Leq6DwDJF2q6BxOL_Nw6J2LEZF4g@mail.gmail.com>

On Thu, Feb 10, 2022 at 09:55:27PM -0800, Namhyung Kim wrote:

> So you are ok with adding two new tracepoints, even if they are
> similar to what we already have in lockdep/lock_stat, right?

Yeah, I don't think adding tracepoints to the slowpaths of the various
locks should be a problem.

WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: rcu <rcu@vger.kernel.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	Boqun Feng <boqun.feng@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Radoslaw Burny <rburny@google.com>,
	Byungchul Park <byungchul.park@lge.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	cgroups <cgroups@vger.kernel.org>, Tejun Heo <tj@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Will Deacon <will@kernel.org>, Ingo Molnar <mingo@kernel.org>,
	linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: [Intel-gfx] [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1)
Date: Fri, 11 Feb 2022 11:39:13 +0100	[thread overview]
Message-ID: <20220211103913.GR23216@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <CAM9d7cgPFLjQyopX04MwG6Leq6DwDJF2q6BxOL_Nw6J2LEZF4g@mail.gmail.com>

On Thu, Feb 10, 2022 at 09:55:27PM -0800, Namhyung Kim wrote:

> So you are ok with adding two new tracepoints, even if they are
> similar to what we already have in lockdep/lock_stat, right?

Yeah, I don't think adding tracepoints to the slowpaths of the various
locks should be a problem.

WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: rcu <rcu@vger.kernel.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	Boqun Feng <boqun.feng@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Radoslaw Burny <rburny@google.com>,
	Byungchul Park <byungchul.park@lge.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	cgroups <cgroups@vger.kernel.org>, Tejun Heo <tj@kernel.org>,
	Waiman Long <longman@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Will Deacon <will@kernel.org>, Ingo Molnar <mingo@kernel.org>,
	linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1)
Date: Fri, 11 Feb 2022 11:39:13 +0100	[thread overview]
Message-ID: <20220211103913.GR23216@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <CAM9d7cgPFLjQyopX04MwG6Leq6DwDJF2q6BxOL_Nw6J2LEZF4g@mail.gmail.com>

On Thu, Feb 10, 2022 at 09:55:27PM -0800, Namhyung Kim wrote:

> So you are ok with adding two new tracepoints, even if they are
> similar to what we already have in lockdep/lock_stat, right?

Yeah, I don't think adding tracepoints to the slowpaths of the various
locks should be a problem.

  reply	other threads:[~2022-02-11 10:40 UTC|newest]

Thread overview: 108+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-08 18:41 [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1) Namhyung Kim
2022-02-08 18:41 ` Namhyung Kim
2022-02-08 18:41 ` [Intel-gfx] " Namhyung Kim
2022-02-08 18:41 ` [PATCH 01/12] locking: Pass correct outer wait type info Namhyung Kim
2022-02-08 18:41 ` [PATCH 02/12] cgroup: rstat: Make cgroup_rstat_cpu_lock name readable Namhyung Kim
2022-02-08 18:41   ` Namhyung Kim
2022-02-08 18:46   ` Tejun Heo
2022-02-08 19:16     ` Namhyung Kim
2022-02-08 19:16       ` Namhyung Kim
2022-02-08 23:51       ` Namhyung Kim
2022-02-08 23:51         ` Namhyung Kim
2022-02-08 18:41 ` [PATCH 03/12] timer: Protect lockdep functions with #ifdef Namhyung Kim
2022-02-08 19:36   ` Steven Rostedt
2022-02-08 20:29     ` Namhyung Kim
2022-02-08 21:19       ` Steven Rostedt
2022-02-08 18:42 ` [PATCH 04/12] workqueue: " Namhyung Kim
2022-02-08 18:48   ` Tejun Heo
2022-02-08 19:17     ` Namhyung Kim
2022-02-08 19:38   ` Steven Rostedt
2022-02-08 18:42 ` [PATCH 05/12] drm/i915: " Namhyung Kim
2022-02-08 18:42   ` [Intel-gfx] " Namhyung Kim
2022-02-08 18:51   ` Jani Nikula
2022-02-08 18:51     ` [Intel-gfx] " Jani Nikula
2022-02-08 19:22     ` Namhyung Kim
2022-02-08 19:22       ` [Intel-gfx] " Namhyung Kim
2022-02-09 13:49       ` Jani Nikula
2022-02-09 13:49         ` [Intel-gfx] " Jani Nikula
2022-02-09 16:27         ` Steven Rostedt
2022-02-09 16:27           ` [Intel-gfx] " Steven Rostedt
2022-02-09 19:28           ` Namhyung Kim
2022-02-09 19:28             ` [Intel-gfx] " Namhyung Kim
2022-02-08 18:42 ` [PATCH 06/12] btrfs: change lockdep class size check using ks->names Namhyung Kim
2022-02-08 19:03   ` David Sterba
2022-02-08 18:42 ` [PATCH 07/12] locking: Introduce CONFIG_LOCK_INFO Namhyung Kim
2022-02-08 18:42 ` [PATCH 08/12] locking/mutex: Init name properly w/ CONFIG_LOCK_INFO Namhyung Kim
2022-02-08 18:42 ` [PATCH 09/12] locking: Add more static lockdep init macros Namhyung Kim
2022-02-08 18:42 ` [PATCH 10/12] locking: Add CONFIG_LOCK_TRACEPOINTS option Namhyung Kim
2022-02-08 18:42 ` [PATCH 11/12] locking/mutex: Revive fast functions for CONFIG_LOCK_TRACEPOINTS Namhyung Kim
2022-02-09  8:40   ` Peter Zijlstra
2022-02-09 20:15     ` Namhyung Kim
2022-02-08 18:42 ` [PATCH 12/12] locking: Move lock_acquired() from the fast path Namhyung Kim
2022-02-08 19:14 ` [RFC 00/12] locking: Separate lock tracepoints from lockdep/lock_stat (v1) Namhyung Kim
2022-02-08 19:14   ` Namhyung Kim
2022-02-08 19:14   ` [Intel-gfx] " Namhyung Kim
2022-02-09  9:09 ` Peter Zijlstra
2022-02-09  9:09   ` Peter Zijlstra
2022-02-09  9:09   ` Peter Zijlstra
2022-02-09 18:19   ` [Intel-gfx] " Waiman Long
2022-02-09 18:19     ` Waiman Long
2022-02-09 18:19     ` Waiman Long
2022-02-09 18:29     ` Mathieu Desnoyers
2022-02-09 18:29       ` Mathieu Desnoyers
2022-02-09 18:29       ` [Intel-gfx] " Mathieu Desnoyers
2022-02-09 19:02       ` Waiman Long
2022-02-09 19:02         ` Waiman Long
2022-02-09 19:02         ` Waiman Long
2022-02-09 19:17         ` Mathieu Desnoyers
2022-02-09 19:17           ` Mathieu Desnoyers
2022-02-09 19:17           ` [Intel-gfx] " Mathieu Desnoyers
2022-02-09 19:37           ` Waiman Long
2022-02-09 19:37             ` Waiman Long
2022-02-09 19:37             ` Waiman Long
2022-02-09 19:22         ` [Intel-gfx] " Namhyung Kim
2022-02-09 19:22           ` Namhyung Kim
2022-02-09 19:22           ` Namhyung Kim
2022-02-09 19:28           ` Mathieu Desnoyers
2022-02-09 19:28             ` Mathieu Desnoyers
2022-02-09 19:28             ` [Intel-gfx] " Mathieu Desnoyers
2022-02-09 19:45             ` Namhyung Kim
2022-02-09 19:45               ` Namhyung Kim
2022-02-09 19:45               ` [Intel-gfx] " Namhyung Kim
2022-02-09 19:56               ` Mathieu Desnoyers
2022-02-09 19:56                 ` Mathieu Desnoyers
2022-02-09 19:56                 ` [Intel-gfx] " Mathieu Desnoyers
2022-02-09 20:17               ` Waiman Long
2022-02-09 20:17                 ` Waiman Long
2022-02-09 20:17                 ` [Intel-gfx] " Waiman Long
2022-02-10  0:27                 ` Namhyung Kim
2022-02-10  0:27                   ` Namhyung Kim
2022-02-10  0:27                   ` Namhyung Kim
2022-02-10  2:12                   ` Waiman Long
2022-02-10  2:12                     ` Waiman Long
2022-02-10  2:12                     ` [Intel-gfx] " Waiman Long
2022-02-10  9:33                 ` Peter Zijlstra
2022-02-10  9:33                   ` Peter Zijlstra
2022-02-10  9:33                   ` [Intel-gfx] " Peter Zijlstra
2022-02-10  0:32   ` Namhyung Kim
2022-02-10  0:32     ` Namhyung Kim
2022-02-10  0:32     ` Namhyung Kim
2022-02-10  9:13     ` Peter Zijlstra
2022-02-10  9:13       ` Peter Zijlstra
2022-02-10  9:13       ` [Intel-gfx] " Peter Zijlstra
2022-02-10 19:14       ` Paul E. McKenney
2022-02-10 19:14         ` Paul E. McKenney
2022-02-10 19:27         ` Waiman Long
2022-02-10 19:27           ` Waiman Long
2022-02-10 19:27           ` [Intel-gfx] " Waiman Long
2022-02-10 20:10           ` Paul E. McKenney
2022-02-10 20:10             ` Paul E. McKenney
2022-02-11  5:57             ` Namhyung Kim
2022-02-11  5:57               ` Namhyung Kim
2022-02-11  5:57               ` [Intel-gfx] " Namhyung Kim
2022-02-11  5:55       ` Namhyung Kim
2022-02-11  5:55         ` Namhyung Kim
2022-02-11  5:55         ` [Intel-gfx] " Namhyung Kim
2022-02-11 10:39         ` Peter Zijlstra [this message]
2022-02-11 10:39           ` Peter Zijlstra
2022-02-11 10:39           ` [Intel-gfx] " Peter Zijlstra

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