From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6052C64ED8 for ; Mon, 27 Feb 2023 13:54:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229671AbjB0Nys (ORCPT ); Mon, 27 Feb 2023 08:54:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229606AbjB0Nyr (ORCPT ); Mon, 27 Feb 2023 08:54:47 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 596121DBA1 for ; Mon, 27 Feb 2023 05:54:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677506043; 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; bh=XuInmkYo02OjAGLdcr/ZKCR1FQs4dMy6r5f/AbK03aM=; b=OWT/oxGb/hZ/dzfpdRQeXR5aetw7ePGuKK80lkSUlx6QbMqfOi7JoDWMwpgo8OKT+4BLt5 0UyOWdgw//TThShNzPLdhEN6I7d0jAwziJSN/Mv0ksa6OnDzgybxkJaBgCIo/XwTL8EBEq mzc1AD3UhFMDwYQDN8gsFxADcexGziI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-609-eBO0a9uQPDKSZjbhjmqWsg-1; Mon, 27 Feb 2023 08:53:58 -0500 X-MC-Unique: eBO0a9uQPDKSZjbhjmqWsg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id F2BF618E0044; Mon, 27 Feb 2023 13:53:57 +0000 (UTC) Received: from localhost (unknown [10.39.193.71]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1E18D2026D4B; Mon, 27 Feb 2023 13:53:56 +0000 (UTC) Date: Mon, 27 Feb 2023 08:53:55 -0500 From: Stefan Hajnoczi To: slava@dubeyko.com Cc: linux-fsdevel@vger.kernel.org, viacheslav.dubeyko@bytedance.com, luka.perkov@sartura.hr, bruno.banelli@sartura.hr Subject: Re: [RFC PATCH 00/76] SSDFS: flash-friendly LFS file system for ZNS SSD Message-ID: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="h58prB83eJZjLr88" Content-Disposition: inline In-Reply-To: <20230225010927.813929-1-slava@dubeyko.com> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org --h58prB83eJZjLr88 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > Benchmarking results show that SSDFS is capable: Is there performance data showing IOPS? These comparisions include file systems that don't support zoned devices natively, maybe that's why IOPS comparisons cannot be made? > (3) decrease the write amplification factor compared with: > 1.3x - 116x (ext4), > 14x - 42x (xfs), > 6x - 9x (btrfs), > 1.5x - 50x (f2fs), > 1.2x - 20x (nilfs2); > (4) prolong SSD lifetime compared with: Is this measuring how many times blocks are erased? I guess this measurement includes the background I/O from ssdfs migration and moving? > 1.4x - 7.8x (ext4), > 15x - 60x (xfs), > 6x - 12x (btrfs), > 1.5x - 7x (f2fs), > 1x - 4.6x (nilfs2). Thanks, Stefan --h58prB83eJZjLr88 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmP8tfMACgkQnKSrs4Gr c8jiTgf9FIyVv6HBOn4x+53iYhRlbDc/WWQkcg2if9cqucNdaFo/3xuFFRnCnPQs wIk4272cO2lEzDCylxBhDouijeR/eTswmBdQn2fhKEHbfp/GehsN04feGP4/Ce3W 2o3k333jp10ZRA3h5OMKjeTyCbggjKdSRuzheRotKXDgr6D1JdpWRFG1FPgrSoEh Pebj/E00lYTky/b61zCqGR/NHQZrd+wal299rNVULR+hxD6oKQfrWa1FXC9lleaT Uyopu3HPaygTwF11rZ53DjDAsasagKVqDCVZh5mKiAbaHvcjcugO/dNM0GgR3lO8 Spo0ER82f0VUv85/2j408M/Qkt5F2A== =Pivz -----END PGP SIGNATURE----- --h58prB83eJZjLr88--