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 X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01415C54FCB for ; Mon, 27 Apr 2020 15:06:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C9D65206BF for ; Mon, 27 Apr 2020 15:06:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IGnt1RYD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727878AbgD0PGz (ORCPT ); Mon, 27 Apr 2020 11:06:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727834AbgD0PGz (ORCPT ); Mon, 27 Apr 2020 11:06:55 -0400 Received: from mail-il1-x136.google.com (mail-il1-x136.google.com [IPv6:2607:f8b0:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56110C0610D5 for ; Mon, 27 Apr 2020 08:06:54 -0700 (PDT) Received: by mail-il1-x136.google.com with SMTP id e8so16960806ilm.7 for ; Mon, 27 Apr 2020 08:06:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=ULHHxyGDbcrKGouptCp0kKvfN/ZG9f90+hyrmktyfWE=; b=IGnt1RYDvvg4UUOLJO7lLf4iBHvivrIibg2EoIv9SUYMf5blEVrr9OI2zGsj77sGWp Vcl1s4uD3QdffHvnGblSoJx2bgw++5rR/neK784/5/+qAEjvD4Qcc7kuJWu9Zg5E2Vlr gD/rSnitzIHbmlMLzWS6oNJAiCHHSDo3XvXWhF97xv6HfiVz4PYuQwVGyI0uZq0zr8sz T2c7gRJeUPTkU0SitUfkzNN/wGfqeQGfLyTyyuZeE2be7pXGQHLwCnZVlSRZTrqBehkP LFMhgceQArwoZUBNHT9jiClUZYXIy8blDkWLGUcb8t0fKs4nnUG9Ywb443oNleHvCirT xbdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=ULHHxyGDbcrKGouptCp0kKvfN/ZG9f90+hyrmktyfWE=; b=RiT1clghrt5LZ7PC6AQeCmKqK9HAwYxwpSOsW6le6G/tjg6k7qzIxAnCKOg70/S4cZ dbUZQla8oZVdB3CR6RUSWdCC1Exa7ZBPzGEslWK6qXyObs7iLFvbl0TmhtvqtYKIyqPa lJsWe+l1p/GbrxOH0bSKerCplBXosNao6kklmw4XuQ2GUAu6gILpT8GxEaCzbDsn0GuX 7C3DnyeVeU2UIwVmw+yqNjq1nKR4uvgSZ7eXSc3bWUsLXSo/J6ox/Vo8Dj9wqBiAmn05 UvslGE83n9mA7tqmH/tvoX4yfZhxnLQn3yB00xOWunSRmPlmT2GSBDWKX48fGlXy+XjX Yjyg== X-Gm-Message-State: AGi0PuZmIJSQbwiXTofjbdIUc5vMZaFO855bHNZjV0sWNTwXOS2F4s3j VW1b0VqFHNdAzt92e4HjmEo4YrDM/tNxSt1b1NM= X-Google-Smtp-Source: APiQypKsTzbldEJ1z+yurKtFaq+6Wwuxw9Z3ckc+lFSFVyDTojpyGbVMf9e8McPjyXzSWa5isnWTPxkMEv5vyoSK12Q= X-Received: by 2002:a92:7f06:: with SMTP id a6mr19745226ild.14.1588000012990; Mon, 27 Apr 2020 08:06:52 -0700 (PDT) MIME-Version: 1.0 From: Torstein Eide Date: Mon, 27 Apr 2020 17:06:42 +0200 Message-ID: Subject: Re: [RFC][PATCH V3] btrfs: ssd_metadata: storing metadata on SSD To: kreijack@libero.it Cc: hugo@carfax.org.uk, linux-btrfs@vger.kernel.org, martin.svec@zoner.cz, mclaud@roznica.com.ua, wangyugui@e16-tech.com Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org How will affect sleep of disk? will it reduce the number of wake up call, to the HDD? -- Torstein Eide Torsteine@gmail.com