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 48123EE4993 for ; Tue, 22 Aug 2023 18:18:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229767AbjHVSSE (ORCPT ); Tue, 22 Aug 2023 14:18:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229692AbjHVSSE (ORCPT ); Tue, 22 Aug 2023 14:18:04 -0400 X-Greylist: delayed 434 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 22 Aug 2023 11:18:01 PDT Received: from len.romanrm.net (len.romanrm.net [IPv6:2001:41d0:1:8b3b::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37089128 for ; Tue, 22 Aug 2023 11:18:00 -0700 (PDT) Received: from nvm (nvm2.home.romanrm.net [IPv6:fd39::4a:3cff:fe57:d6b5]) by len.romanrm.net (Postfix) with SMTP id D2DD940118 for ; Tue, 22 Aug 2023 18:10:44 +0000 (UTC) Date: Tue, 22 Aug 2023 23:10:44 +0500 From: Roman Mamedov To: Linux RAID Subject: Modern best-practices for NVMe RAID0 stripe size? Message-ID: <20230822231044.18b729aa@nvm> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org Hello, Most articles I can find are like 2015 era and discuss whether 8K or 16K would be better, or at most up to 128K. It feels like with the performance of modern drives, larger stripe sizes should be preferred, such as 1M or 4M. Does anyone have any up-to-date comparisons or advice about this? Thanks -- With respect, Roman