From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 311AA2EBB88 for ; Wed, 29 Oct 2025 09:07:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761728845; cv=none; b=GZ77CW9zf2zlh+uGvRL1Lo+pPz+sgSJWo8GvqdX9WZSMkuCA+4FI2MpzrHL3wbxBa2JZl2Hwb2bxcS8S2pb+7SFfZqpAIFtGQg8LAZC9eeqavfYyWdDBTs4AxdAZsiaYeoBioZ7+ZtpusvOo04DvfiALPJNN8pOFA0j8nJPYNws= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761728845; c=relaxed/simple; bh=85DCkG0iYuvCqnl8djYri+TmCjmvgPRIKKwvkOJSLGo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fmlAN2fV0+dX9jD/T80WvDabN7KaLoES7ViJYI4nQSr4ElGYWop/UM6jGbkzghfGejPcegzuY5X3DTDa72gboSbRR7eZYyxjQdtvj2VHT8JtJSWD09RYg81ObErabTp23lh4FmD3CrrW5rwxuElWUI+zRiBNszqAQxd1+GL/oWA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=N+6URK2Y; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="N+6URK2Y" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=8+C8Wrqujbj6m8Z3Zzw+OZlTUtlMo1jmakSDdlVaQ44=; b=N+6URK2Yo+7aO0bAseULE5bYRx crt2f9OTdD65gkdVXfDGdGv1zp+o2NEeqYFU1dzvsZK82VCBR7i/8Ht0oTbElOAaY0QlmlXQYqO+G IBm3VJtHYz2ZU6KuXwzIxe9PbDwMuzZoUNicRYU9ajPnuwQWCzaXTbL66uwOKxBeGjUAVmR0GuTq5 cch/66v6wv/6yJAdeSU13LUoTshCJIX8C544oy1LhK757W1vSxLK8igKbODHMMaogXMB58i8BpW3+ Lygu8A5KJf/kRbV4YMHv6QwptVcPH+w+QecU5JcU68geJzbuofOaoxeJqTJOOF1XI6FoWCdtKgtA8 fhWc+uvw==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vE29D-00000005b6z-14Sj; Wed, 29 Oct 2025 09:07:16 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 4F6AE300343; Wed, 29 Oct 2025 10:07:15 +0100 (CET) Date: Wed, 29 Oct 2025 10:07:15 +0100 From: Peter Zijlstra To: Sebastian Andrzej Siewior Cc: Namhyung Kim , Ingo Molnar , Mark Rutland , Alexander Shishkin , Arnaldo Carvalho de Melo , Ian Rogers , Adrian Hunter , LKML , Eric Dumazet , Thomas Gleixner Subject: Re: [PATCH] perf/x86: Add cond_resched() when allocate/release DS buffers Message-ID: <20251029090715.GD988547@noisy.programming.kicks-ass.net> References: <20251027212724.1759322-1-namhyung@kernel.org> <20251028141518.GA4067720@noisy.programming.kicks-ass.net> <20251028152747.GR4068168@noisy.programming.kicks-ass.net> <20251028190422.GE3419281@noisy.programming.kicks-ass.net> <20251028201354.d25lZRRa@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251028201354.d25lZRRa@linutronix.de> On Tue, Oct 28, 2025 at 09:13:54PM +0100, Sebastian Andrzej Siewior wrote: > On 2025-10-28 20:04:22 [+0100], Peter Zijlstra wrote: > > Well, we've been trying to get people to test things... But > > realistically people will only test once you force them. So we'll see. > > | grep CONFIG_PREEMPT_LAZY /boot/config-6.16.12+deb14+1-amd64 > | CONFIG_PREEMPT_LAZY=y > > Debian has it enabled by default in current testing/ unstable distro. > \o/ Yes, I noticed, thanks!