From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) (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 7A958522A for ; Thu, 29 Aug 2024 01:01:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724893267; cv=none; b=n6asIp3CV/mcY2aE5130SxNY3pR4kfgQGSjt8DXNJ74Q6tf0Z/7E45PPXObQZvN/7e2Zr3ydHWz7ValYjD8t+XEBETJHqClwU+XOVonzVDKSrnbOo0bho8874cKxoM8BnpIntQxMHZJZpUPSpJjsOoeOJUN530Br70sD/XOxVTI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724893267; c=relaxed/simple; bh=bqXZXf9yz0O0dscvtWAbabQB1rBVFzVxRvi6wERMx4I=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=uytxMiVTYRYYDd27LDGU1v/RY06yNWrJKPlAczwivdI+snnBzbz9jQsjwAEymTTbQ5yzU/202gZqx9pOJKqGNiBx++KTVuAwWdHqO67gBjyjzwGpCLM9QFKncd5lA0yQJKSYUgXG3GTpwAKLE7FSQX1oRy+48mEv+V3n9TSrAQo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Pt4jjeis; arc=none smtp.client-ip=198.175.65.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Pt4jjeis" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724893266; x=1756429266; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bqXZXf9yz0O0dscvtWAbabQB1rBVFzVxRvi6wERMx4I=; b=Pt4jjeiscMgQkIpMHhoUBhmdNSGtJSCSE5oM5QefK2ZgJfpG+HKeDp3T Ts1efBKLfgmxkNfxVVxp6j+Cc2t2SnTkgT+4mZ28fZzE3jcr70Nhq84Jl H33OPYVNwDGY6+QJXm/Uhwy3Wwsz+R0aZZgdq7K2BTg4Dy6g+cbl6eihp sPzFGVTaEdaz/FZA1UKSqh4eXktZdiZ6M5Ei/7kNZcyZ4M2s0YlBYJRPA uNdGbOs1plS/UPqBaCxavve+rU4Z3Ng7Ee9e0VMasCdEaMm8fWmhZxT7e oWLMmyJZ3pmlmKe7GPMYHW5wZy50/FY7yK0fm6DSyHoZj1tTnwmJRBpOu Q==; X-CSE-ConnectionGUID: fKljMjrzREOKt9Ic+XIJ0Q== X-CSE-MsgGUID: B/LQGfWyS1qk/8h5Im4bzw== X-IronPort-AV: E=McAfee;i="6700,10204,11178"; a="27252255" X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="27252255" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 18:01:05 -0700 X-CSE-ConnectionGUID: Vt5u9kM9Qg+mclWo6seLcg== X-CSE-MsgGUID: 6ryyHb03RB60OhrcaW+uZw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,184,1719903600"; d="scan'208";a="68239384" Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.6]) by orviesa005.jf.intel.com with ESMTP; 28 Aug 2024 18:01:04 -0700 From: Kanchana P Sridhar To: 21cnbao@gmail.com Cc: akpm@linux-foundation.org, baolin.wang@linux.alibaba.com, chrisl@kernel.org, david@redhat.com, hanchuanhua@oppo.com, hannes@cmpxchg.org, hch@infradead.org, hughd@google.com, kaleshsingh@google.com, kasong@tencent.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.com, minchan@kernel.org, nphamcs@gmail.com, ryan.roberts@arm.com, ryncsn@gmail.com, senozhatsky@chromium.org, shakeel.butt@linux.dev, shy828301@gmail.com, surenb@google.com, v-songbaohua@oppo.com, willy@infradead.org, xiang@kernel.org, ying.huang@intel.com, yosryahmed@google.com, zhengtangquan@oppo.com, wajdi.k.feghali@intel.com, vinodh.gopal@intel.com, kanchana.p.sridhar@intel.com Subject: Re: [PATCH v7 2/2] mm: support large folios swap-in for sync io devices Date: Wed, 28 Aug 2024 18:01:03 -0700 Message-Id: <20240829010103.7705-1-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Shakeel, We submitted an RFC patchset [1] with the Intel In-Memory Analytics Accelerator (Intel IAA) sometime back. This introduces a new 'canned-by_n' compression algorithm in the IAA crypto driver. Relative to software compressors, we could get a 10X improvement in zram write latency and 7X improvement in zram read latency. [1] https://lore.kernel.org/all/cover.1714581792.git.andre.glover@linux.intel.com/ Thanks, Kanchana