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 33A7B23EA96 for ; Tue, 28 Oct 2025 20:13:57 +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=1761682439; cv=none; b=OPzP/LyctLBdcAb1GCzAwyJ2APQdhctyMXfDZ02ZV1mwnSiO4N5CqRp2MbhTEQadoJgI1I1Hn3Ul/mUnmb/TEopyyKNa2q3CImasbwS22L1SpRSnKokNjUyxV5P0h6qqskWQuo4Q68bkci9rJWL+BWKqbmn9o12Bun0q6WDj0og= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761682439; c=relaxed/simple; bh=Oixx8EWSWQTq06cavMws4Pvsp62qi2MmNzuildh4xzo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=KSZn64QjyMzrSXVrL9gRNYvxUEJX4v24bMVmEzjxdHXzeD79RtixDOa7yPNs9zl8wJNtvjMjB+UtC8mVxapUHuhkMAikEzJ2llXpmj2oEL58czPd7GRGb0fSCt/vYA9eZyE1R1MX367PpBJRTHs4O7qhTU4sUKDnMJ4RFKad8uE= 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=dy60kxZh; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=4RqJzLaD; 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="dy60kxZh"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="4RqJzLaD" Date: Tue, 28 Oct 2025 21:13:54 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1761682436; 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=Oixx8EWSWQTq06cavMws4Pvsp62qi2MmNzuildh4xzo=; b=dy60kxZhniGssSMo2E2uj67BKgl1P10QrChr46SvnZvO7RjiX/OyJXNkBARcVwwCyJJvez WnybMELM8aRxwPK1qZjHeYJCDMdj1ljjgW369J6B4LC7xtgqQfLf5AUv22QvZiX3Wocdip kY1rJn+Vjc3plBFx6hWNMnyBdqBbFfyPTBDb8Owiv+wH/9EBCeftm5ec8T8JE+HcN14XR0 Dz8bCZH7nWbtTG8FUL0DugY7fNBFr5M5/SA/ulec2n4oJOf9btvE6+jKDi5wpVtXWylhy8 PcDSfDXlyFk2G7j4CdwcyNMeziYUOpPl3YvPBy/JWUSR3Flh8q+73MU6WbcJCA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1761682436; 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=Oixx8EWSWQTq06cavMws4Pvsp62qi2MmNzuildh4xzo=; b=4RqJzLaD/HZzL9Oi9q4JouyvUZTJV3HW7yOG6YDRuZwyp1O4ioFRoix5mV5N3Inr7qgtwF uCd0LdQROxT0vLCg== From: Sebastian Andrzej Siewior To: Peter Zijlstra 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: <20251028201354.d25lZRRa@linutronix.de> 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> 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=utf-8 Content-Disposition: inline In-Reply-To: <20251028190422.GE3419281@noisy.programming.kicks-ass.net> 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/ Sebastian