From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-174.mta1.migadu.com (out-174.mta1.migadu.com [95.215.58.174]) (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 4D04738888C for ; Fri, 12 Jun 2026 14:23:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781274232; cv=none; b=rXSTmP731UMUhCVptRvZY55LZ+doM7edDuVb4wHdy2LaGIQhKlRvtm+UWBNQXA4mjTnQwCtCK3zUylxyrRmcxtsjeX7YeDnQd0wNJeO04Vnik+rnv1ewA9mCBQafQnaRIQLXTYpGjTTNMAFGc8ORbgPcnN/rkGyGwLZaqXHhjO4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781274232; c=relaxed/simple; bh=BqAB/Wqowi4r5cPszs7vTL12lGW6sUQzUkSUFxNjBxE=; h=Mime-Version:Content-Type:Date:Message-Id:Cc:Subject:From:To: References:In-Reply-To; b=P1yShXu9i6VNDT9THbOawAyaixUYKLG0tVpd4KctXRb7iirFRQpArhS3Ug/uTpECLPvq3huujE4xHo6F9oXOxkeWQuvzqHWJcBtZdKl9vSzbvuUNyTg7cXn8xSG2/uaJ8x24TtHAsbHYGbTyIyG574r2DYpGnyu4yPyRHx9ONUY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Sx2uHkL1; arc=none smtp.client-ip=95.215.58.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Sx2uHkL1" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1781274227; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BqAB/Wqowi4r5cPszs7vTL12lGW6sUQzUkSUFxNjBxE=; b=Sx2uHkL17Oiy/RtBYLoFo/NiICBdEUf6cyBW5V4jyO2POegHKhzcMqu6N29s/JD5m4l+sc RtlHmnFKvEjHmvoxgSHAoPhfIcolM5l0U7Zp9Zou+5ZUk9oxlcHRxeLkT/0hYCX/4noDvz m9kEe16stb5vDzED2XcQ16t15OZ2lAY= Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 12 Jun 2026 14:23:42 +0000 Message-Id: Cc: "Harry Yoo (Oracle)" , "Gregory Price" , , Subject: Re: [PATCH] mm/page_alloc: drop flag-conversion "optimisation" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: "Brendan Jackman" To: "Brendan Jackman" , "Andrew Morton" , "Vlastimil Babka" , "Suren Baghdasaryan" , "Michal Hocko" , "Johannes Weiner" , "Zi Yan" References: <20260612-gfp-pessimisation-v1-1-936eb04202e7@google.com> In-Reply-To: <20260612-gfp-pessimisation-v1-1-936eb04202e7@google.com> X-Migadu-Flow: FLOW_OUT On Fri Jun 12, 2026 at 2:15 PM UTC, Brendan Jackman wrote: > [0] https://github.com/bjackman/aethelred/blob/2ccdc84ef087c2a631914f58e1= 06e99e19bd3b98/page-alloc-test/page-alloc-test.c [...] > (Used AI for the disasm but the rest is all manual). Oh sorry, for full transparency: AI also set up the "benchmark" module above based on mm/test_free_pages.c.