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From: Thomas Gleixner <tglx@linutronix.de>
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To: Oleg Nesterov <oleg@redhat.com>
Cc: John Stultz <jstultz@google.com>, Marco Elver <elver@google.com>, Peter
 Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>, "Eric W.
 Biederman" <ebiederm@xmission.com>, linux-kernel@vger.kernel.org,
 linux-kselftest@vger.kernel.org, Dmitry Vyukov <dvyukov@google.com>,
 kasan-dev@googlegroups.com, Edward Liaw <edliaw@google.com>, Carlos Llamas
 <cmllamas@google.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH] selftests/timers/posix_timers: reimplement
 check_timer_distribution()
In-Reply-To: <20240406151057.GB3060@redhat.com>
References: <87sf02bgez.ffs@tglx> <87r0fmbe65.ffs@tglx>
 <CANDhNCoGRnXLYRzQWpy2ZzsuAXeraqT4R13tHXmiUtGzZRD3gA@mail.gmail.com>
 <87o7aqb6uw.ffs@tglx>
 <CANDhNCreA6nJp4ZUhgcxNB5Zye1aySDoU99+_GDS57HAF4jZ_Q@mail.gmail.com>
 <87frw2axv0.ffs@tglx> <20240404145408.GD7153@redhat.com>
 <87le5t9f14.ffs@tglx> <20240406150950.GA3060@redhat.com>
 <20240406151057.GB3060@redhat.com>
Date: Sun, 07 Apr 2024 00:00:55 +0200
Message-ID: <878r1q882w.ffs@tglx>
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On Sat, Apr 06 2024 at 17:10, Oleg Nesterov wrote:
> Yes, this changes the "semantics" of check_timer_distribution(), perhaps it
> should be renamed.

Definitely.

> But I do not see a better approach, and in fact I think that
>
> 	Test that all running threads _eventually_ receive CLOCK_PROCESS_CPUTIME_ID
>
> is the wrong goal.
>
> Do you agree?

No argument from my side. All we can test is that the leader is not
woken up.

Thanks,

        tglx