From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id B42C41381F4 for ; Mon, 13 Aug 2012 15:04:42 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id AC9D2E0574; Mon, 13 Aug 2012 15:03:32 +0000 (UTC) Received: from mail-wg0-f53.google.com (mail-wg0-f53.google.com [74.125.82.53]) by pigeon.gentoo.org (Postfix) with ESMTP id AA59E21C02C for ; Mon, 13 Aug 2012 14:58:16 +0000 (UTC) Received: by wgbfm10 with SMTP id fm10so2713023wgb.10 for ; Mon, 13 Aug 2012 07:58:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=4C1Ka6Lsxu2BAOlvIuER3H/vDLHIbACbP1l/sEqYMtY=; b=JsNS1qeByRLUbA7mVSfGeGN7gaqxVOVigjEIEwJ2DdElpqlDT4SKFuv4CaTrw0ZTwj /I/qJSLJ9DblrsSKFM0K9MQEfFshaUk9I6JVZrObBVgsixgbjvhw8ZCxR7m04B7zOMQE 5k2Y8LJvBmEhUnlPK2gaPasQFlXge4II00ArGp/bhr76grLSJyVsEpwbiwoC8HTCXIrt GRqftAdGF7LhXwgQTxDrP8s6cnzNNBwPGoQVTyhbDp2ggHWJa8oGlKM9YNzRfIG9wkBU Pe8mQHFKWs/NqZnUlkFo7WfEQf+En4uV117WZO/6XhLlmOtNTFL9lc3dDe6I5TVgEAFW 57pQ== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.50.6.197 with SMTP id d5mr5727515iga.44.1344869895235; Mon, 13 Aug 2012 07:58:15 -0700 (PDT) Received: by 10.42.155.70 with HTTP; Mon, 13 Aug 2012 07:58:15 -0700 (PDT) In-Reply-To: <502911C6.5070107@gmail.com> References: <5028FF82.7020908@nileshgr.com> <502911C6.5070107@gmail.com> Date: Mon, 13 Aug 2012 16:58:15 +0200 Message-ID: Subject: Re: [gentoo-user] Fast file system for cache directory with lot's of files From: Michael Hampicke To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=e89a8f502dd05fe77404c726ecf1 X-Archives-Salt: 8995f142-8284-44b1-9556-dbcae2259e4e X-Archives-Hash: 8bec63100252ebbcb8d61f7eb4fcf83b --e89a8f502dd05fe77404c726ecf1 Content-Type: text/plain; charset=ISO-8859-1 > > I guess traversing through directories may be faster with XFS, but in my > experience ext4 perfoms better than XFS in regard to operations (cp, rm) on > small files. > I read that there are some tuning options for XFS and small files, but > never tried it. > > But if somone seconds XFS I will try it too. > > > It's been a while since I messed with this but isn't XFS the one that > hates power failures and such? > > Dale > > :-) :-) > > -- > I am only responsible for what I said ... Not for what you understood or how you interpreted my words! > > Well, it's the delayed allocation of XFS (which prevents fragmentation) that does not like sudden power losses :) But ext4 has that too, you can disable it though - that should be true for XFS too. But the power situation in the datacenter has never been a problem so far, and even if the cache partition get's screwed, we can always rebuild it. Takes a few hours, but it would not be the end of the world :) --e89a8f502dd05fe77404c726ecf1 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
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I guess=A0traversing=A0through directories may be faster with XFS, but in my experience ext4 perfoms better than XFS in regard to operations (cp, rm) on small files.
I read that there are some tuning options for XFS and small files, but never tried it.

But if somone seconds XFS I will try it too.

It's been a while since I messed with this but isn't XFS the on= e that hates power failures and such?=A0

Dale

:-) :-)=A0 
--=20
I am only responsible for what I said ... Not for what you understood or ho=
w you interpreted my words!
Well, it's the delayed allocation of XFS (which= prevents fragmentation) that does not like sudden power losses :) But ext4= has that too, you can disable it though - that should be true for XFS too.=
But the power situation in the datacenter has never been a problem so = far, and even if the cache partition get's screwed, we can always rebui= ld it. Takes a few hours, but it would not be the end of the world :)
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