From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 01AE073F02 for ; Thu, 22 Feb 2024 21:23:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708637003; cv=none; b=STkcdTGHbZRj6gyLIPW/Gp/JF0igbE5iVgd9yK/sdR5W5sssp3UDczp6AD/Z/sIhhxncsLC1ZZFSbhygL2CHuRMdEe38UxZH7xEauy/x2w+PFwzbvSAB9yHrqOdbvIpQlimJ9gMDPSlrU97X5frHmlWyAxkYFJ+mgsJSjZAvSLc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708637003; c=relaxed/simple; bh=hd/2DrIJNQb2gXbopBHtbShixqqmuNZg+HJ3S0fh/w8=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=iPw+m8hDSdFH9SKvPwL5vetYzC7ZgVcFwGWeXmvrSdppkjqzEDrnWOD8xLVRBLoFrnrIdG1kOqfyjz+NIvGzE0MxIfQPZfDLdF4CYdTeAIxg1KdYzbbxYZ4quiFSukMcHXWvM9il/AuT1p42cP/4WYE6lwFZYcG7OK8lKKBp7Bg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=DrroWcgS; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=vJHIQTO+; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="DrroWcgS"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="vJHIQTO+" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1708637000; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=lIRPIZxG9t+ahGgrtreJ9bofsQ3dY+aVAetq13EaR9Q=; b=DrroWcgS6mZp6vRnICkmO6dYyRmb46nuqZEAy8GLs1K78adXZDcBKxiz5BpaZynW5bs6U4 KJP+V5nUH22Y1hs5MiGC7X7mJSCn7OrWrQE2P1SRa+4vLKYyuPU24KwHYf39Hj8V9gSMmw c1Xp0+KBgHKuG/oOtcSqj8wXKDDmWrguAdwOGbsYyq4HpbNX+4+oQG7RuUg1rsK1Fm9nXw 4wHo8JP0qUQAHemiQYp9StBKkPplSI3CEQUChkTlS0ZzzQD5drCXkHLCgE1nGzI7gg/9y3 X3WrFpplJ5QxQYT6HHi3iBCc3JXJ08sqasLYWn/q0/0d1pMaVnnqh/AjoaSAww== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1708637000; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=lIRPIZxG9t+ahGgrtreJ9bofsQ3dY+aVAetq13EaR9Q=; b=vJHIQTO+7AwFhSVRrMa0bRDXsEfPdU0bL6TvjmjmjpgjeUHmMAqqKajEFlZKPg5v2tSBfo TgtDmaYzcUrYdxBw== To: Raghavendra K T , Ankur Arora , linux-kernel@vger.kernel.org Cc: peterz@infradead.org, torvalds@linux-foundation.org, paulmck@kernel.org, akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, willy@infradead.org, mgorman@suse.de, jpoimboe@kernel.org, mark.rutland@arm.com, jgross@suse.com, andrew.cooper3@citrix.com, bristot@kernel.org, mathieu.desnoyers@efficios.com, geert@linux-m68k.org, glaubitz@physik.fu-berlin.de, anton.ivanov@cambridgegreys.com, mattst88@gmail.com, krypton@ulrich-teichert.org, rostedt@goodmis.org, David.Laight@ACULAB.COM, richard@nod.at, mjguzik@gmail.com, jon.grimm@amd.com, bharata@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com Subject: Re: [PATCH 00/30] PREEMPT_AUTO: support lazy rescheduling In-Reply-To: References: <20240213055554.1802415-1-ankur.a.arora@oracle.com> <15fcf98c-58c5-fa08-2e21-f3b0baf058e6@amd.com> <87zfvtg2mh.ffs@tglx> Date: Thu, 22 Feb 2024 22:23:19 +0100 Message-ID: <87ttm0dwhk.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Feb 21 2024 at 22:57, Raghavendra K T wrote: > On 2/21/2024 10:45 PM, Thomas Gleixner wrote: >> On Wed, Feb 21 2024 at 17:53, Raghavendra K T wrote: >>> Configuration tested. >>> a) Base kernel (6.7), >> >> Which scheduling model is the baseline using? >> > > baseline is also PREEMPT_DYNAMIC with voluntary preemption > >>> b) patched with PREEMPT_AUTO voluntary preemption. >>> c) patched with PREEMPT_DYNAMIC voluntary preemption. Which RCU variant do you have enabled with a, b, c ? I.e. PREEMPT_RCU=? Thanks, tglx