Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets

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From: Marco Elver <elver@google.com>
To: elver@google.com, Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Dmitry Vyukov <dvyukov@google.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org, linux-perf-users@vger.kernel.org,
	x86@kernel.org, linux-sh@vger.kernel.org,
	kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets
Date: Tue, 28 Jun 2022 12:54:32 +0200	[thread overview]
Message-ID: <CANpmjNPapZ9p3dSB1RC-cBoJ588XkRxJRzbhxx4THLZ9aWsx=A@mail.gmail.com> (raw)
In-Reply-To: <20220628095833.2579903-14-elver@google.com>

On Tue, 28 Jun 2022 at 11:59, Marco Elver <elver@google.com> wrote:
[...]
> +       /*
> +        * Update the pinned task slots, in per-CPU bp_cpuinfo and in the global
> +        * histogram. We need to take care of 5 cases:

This is a typo: "5 cases" -> "4 cases".

WARNING: multiple messages have this Message-ID (diff)

From: Marco Elver <elver@google.com>
To: elver@google.com, Peter Zijlstra <peterz@infradead.org>,
	 Frederic Weisbecker <frederic@kernel.org>,
	Ingo Molnar <mingo@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	linux-sh@vger.kernel.org,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	x86@kernel.org, linuxppc-dev@lists.ozlabs.org,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	kasan-dev@googlegroups.com, Namhyung Kim <namhyung@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jiri Olsa <jolsa@redhat.com>, Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets
Date: Tue, 28 Jun 2022 12:54:32 +0200	[thread overview]
Message-ID: <CANpmjNPapZ9p3dSB1RC-cBoJ588XkRxJRzbhxx4THLZ9aWsx=A@mail.gmail.com> (raw)
In-Reply-To: <20220628095833.2579903-14-elver@google.com>

On Tue, 28 Jun 2022 at 11:59, Marco Elver <elver@google.com> wrote:
[...]
> +       /*
> +        * Update the pinned task slots, in per-CPU bp_cpuinfo and in the global
> +        * histogram. We need to take care of 5 cases:

This is a typo: "5 cases" -> "4 cases".

next prev parent reply	other threads:[~2022-06-28 10:55 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-28  9:58 [PATCH v2 00/13] perf/hw_breakpoint: Optimize for thousands of tasks Marco Elver
2022-06-28  9:58 ` Marco Elver
2022-06-28  9:58 ` [PATCH v2 01/13] perf/hw_breakpoint: Add KUnit test for constraints accounting Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 12:53   ` Dmitry Vyukov
2022-06-28 12:53     ` Dmitry Vyukov
2022-06-28 13:26     ` Marco Elver
2022-06-28 13:26       ` Marco Elver
2022-06-28  9:58 ` [PATCH v2 02/13] perf/hw_breakpoint: Clean up headers Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28  9:58 ` [PATCH v2 03/13] perf/hw_breakpoint: Optimize list of per-task breakpoints Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 13:08   ` Dmitry Vyukov
2022-06-28 13:08     ` Dmitry Vyukov
2022-06-28 14:53     ` Marco Elver
2022-06-28 14:53       ` Marco Elver
2022-06-28 15:27       ` Dmitry Vyukov
2022-06-28 15:27         ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 04/13] perf/hw_breakpoint: Mark data __ro_after_init Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28  9:58 ` [PATCH v2 05/13] perf/hw_breakpoint: Optimize constant number of breakpoint slots Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28  9:58 ` [PATCH v2 06/13] perf/hw_breakpoint: Make hw_breakpoint_weight() inlinable Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 13:16   ` Dmitry Vyukov
2022-06-28 13:16     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 07/13] perf/hw_breakpoint: Remove useless code related to flexible breakpoints Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 13:18   ` Dmitry Vyukov
2022-06-28 13:18     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 13:21   ` Dmitry Vyukov
2022-06-28 13:21     ` Dmitry Vyukov
2022-07-01  8:54   ` Christophe Leroy
2022-07-01  8:54     ` Christophe Leroy
2022-07-01  9:41     ` Marco Elver
2022-07-01  9:41       ` Marco Elver
2022-07-01 10:15       ` Christophe Leroy
2022-07-01 10:15         ` Christophe Leroy
2022-06-28  9:58 ` [PATCH v2 09/13] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked() Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 14:44   ` Dmitry Vyukov
2022-06-28 14:44     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 10/13] perf/hw_breakpoint: Reduce contention with large number of tasks Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 14:45   ` Dmitry Vyukov
2022-06-28 14:45     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 11/13] perf/hw_breakpoint: Introduce bp_slots_histogram Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 14:52   ` Dmitry Vyukov
2022-06-28 14:52     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 12/13] perf/hw_breakpoint: Optimize max_bp_pinned_slots() for CPU-independent task targets Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 15:41   ` Dmitry Vyukov
2022-06-28 15:41     ` Dmitry Vyukov
2022-06-28  9:58 ` [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() " Marco Elver
2022-06-28  9:58   ` Marco Elver
2022-06-28 10:54   ` Marco Elver [this message]
2022-06-28 10:54     ` Marco Elver
2022-06-28 15:45   ` Dmitry Vyukov
2022-06-28 15:45     ` Dmitry Vyukov
2022-06-28 16:00     ` Marco Elver
2022-06-28 16:00       ` Marco Elver

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