From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E03E87CA0 for ; Sun, 24 Jul 2016 19:24:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A0FDC8F8035 for ; Sun, 24 Jul 2016 17:24:10 -0700 (PDT) Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id zVwMjS8H8Fs9pCB6 for ; Sun, 24 Jul 2016 17:24:07 -0700 (PDT) Date: Mon, 25 Jul 2016 10:23:34 +1000 From: Dave Chinner Subject: Re: hardlinking and deleting milions of small files Message-ID: <20160725002334.GG12670@dastard> References: <201607241438.10035.arekm@maven.pl> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <201607241438.10035.arekm@maven.pl> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Arkadiusz =?utf-8?Q?Mi=C5=9Bkiewicz?= Cc: "xfs@oss.sgi.com" T24gU3VuLCBKdWwgMjQsIDIwMTYgYXQgMDI6Mzg6MTBQTSArMDIwMCwgQXJrYWRpdXN6IE1pxZtr aWV3aWN6IHdyb3RlOgo+IAo+IEhlbGxvLgo+IAo+IEknbSB1c2luZyByc25hcHNob3QgdG8gYmFj a3VwIGJpZyBzZXJ2ZXJzIChsaWtlIDVUQiBmcywgMjUgMDAwIDAwMCBpbm9kZXMsIAo+IHNtYWxs IGZpbGVzIC0gbWFpbGJveGVzIGluIGZvcm0gb2YgbWFpbGRpcnMsIHNvIGVhY2ggbWFpbCBpcyBh IHNlcGFyYXRlIGZpbGUpLiAKPiBCYWNrdXAgc2VydmVyIC0ga2VybmVsIDQuNi4zLCBWNCB4ZnMg ZmlsZXN5c3RlbXMuCgpXaGF0IHN0b3JhZ2U/IFdoYXQgbW91bnQgb3B0aW9ucz8gV2hhdCBpcyB0 aGUgeGZzX2luZm8gb3V0cHV0PwoKKC9tZSBwb2ludHMgYXQKaHR0cDovL3hmcy5vcmcvaW5kZXgu cGhwL1hGU19GQVEjUTpfV2hhdF9pbmZvcm1hdGlvbl9zaG91bGRfSV9pbmNsdWRlX3doZW5fcmVw b3J0aW5nX2FfcHJvYmxlbS4zRikKCj4gY3AgLWFsIGZvciB0aGF0IGFtb3VudCB0YWtlcyBhYm91 dCAxLjUgZGF5Lgo+IHJtIC1yZiBvZiBoYXJkbGlua2VkIGNvcHkgdGFrZXMgYW5vdGhlciAxLjUg ZGF5CgpTbyB3aGF0J3MgdGhlIGJvdHRsZW5lY2s/IFJlYWRpbmcgdGhlIGRpcmVjdG9yeSBzdHJ1 Y3R1cmUvaW5vZGVzCmludG8gbWVtb3J5IHRvIG1ha2UgdGhlIGNvcHk/IFdoYXQncyB0aGUgSU8g cGVyZm9ybWFuY2UgbG9vayBsaWtlPwpBcmUgdGhleSBDUFUgYm91bmQ/IFdoYXQgZWxzZSBpcyBn ZW5lcmF0aW5nIElPIGxvYWQgYXQgdGhlIHNhbWUKdGltZT8gSG93IGJpZyBhcmUgdGhlIGluZGl2 aWR1YWwgZGlyZWN0b3JpZXM/IEhvdyBmdWxsIGlzIHRoZQpmaWxlc3lzdGVtPyAgSG93IG1hbnkg aGFyZGxpbmtzIGluIGEgImNvcHkiPwoKRldJVzwgeW91J3ZlIGdvdCAyNU0gaW5vZGVzIGluIHRo ZSBmaWxlc3lzdGVtIC0gaG93IG1hbnkgaGFyZGxpbmtzCmRvIHlvdSBoYXZlIGluIHRoZSBmaWxl c3lzdGVtPyAxMDBNPyAyMDBNPyAxQj8gaS5lLiB3aGF0J3MgdGhlIHNjYWxlCm9mIHRoZSBkaXJl Y3Rvcnkgc3RydWN0dXJlIHRoYXQgY29udGFpbnMgYWxsIHRoZSBoYXJkIGxpbmtzPwoKPiAoYW5k IHRvb25zIG9mIHJhbSBmb3IgdGhlc2Ugb3BlcmF0aW9uczsgY2F1c2luZyBPT00gdW50aWwgcmVj ZW50IGtlcm5lbHMgbWFkZSAKPiByZWNsYWltIGJldHRlciwgc28gbm8gbW9yZSBPT00pCgpXaGF0 IG9vbSBwcm9ibGVtcz8gU2xhYnRvcCBvdXRwdXQgZHVyaW5nIGEgdGVzdD8KCj4gTm93IHRoZSB3 ZWlyZCBwYXJ0IC0gc2ltaWxhciBvcGVyYXRpb25zIG9uIGV4dDQgZmluaXNoIGluIG1hdHRlciBv ZiBob3Vycy4KClNvIHlvdSBwcm9iYWJseSBuZWVkIHRvIGlkZW50aWZ5IHdoZXJlIHRoZSBkaWZm ZXJlbmNlIGluIGJlaGF2aW91cgppcyAtIHJlYWRpbmcgZnJvbSBkaXNrLCB3cml0aW5nIHRvIGRp c2ssIENQVSB1c2FnZSwgZGlyZWN0b3J5IGVudHJ5CmNyZWF0aW9uL3JlbW92YWwgc3BlZWQsIGV0 Yy4KCj4gcHMuIERpZG4ndCBkbyBzY2llbnRpZmljIGNvbXBhcmlzb24gKEknbSBqdXN0IHZpZXdp bmcgYmFja3VwIGxvZ3Mgb2YgdHdvIAo+IHNpbWlsYXIgbWFpbCBzZXJ2ZXJzIChzaW1pbGFyIGhh cmR3YXJlLCBzaW1pbGFyIHN0b3JhZ2Ugc2l6ZSkgYmVpbmcgYmFja2VkIHVwIAo+IHRvIHNpbmds ZSBiYWNrdXAgc2VydmVyIG9udG8gdHdvIHBhcnRpdGlvbnMgLSBvbmUgd2l0aCB4ZnMgYW5kIG9u ZSB3aXRoIGV4dDQgCj4gb24gaXQpKQoKU28gdGhlIC9kZXN0aW5hdGlvbi8gZmlsZXMgaXMgZWl0 aGVyIGV4dDQgb3IgWEZTLCBidXQgdGhlIHNvdXJjZQpmaWxlc3lzdGVtIGlzIHRoZSBzYW1lPyBT byBob3cgZG9lcyAiY3AgLWFsIiB3b3JrIHRvIGNyZWF0ZQpoYXJkbGlua3Mgd2hlbiBjb3B5aW5n IHRvIGEgZGlmZmVyZW50IGZpbGVzeXN0ZW0/IElmIHRoaXMgaXMgYSBjb3B5CnRvIGEgZGlmZmVy ZW50IGZpbGVzeXN0ZW0sIHRoZW4gaXQncyBhIHZlcnkgZGlmZmVyZW50IHByb2JsZW0gdG8KImNy ZWF0ZS9yZW1vdmluZyBoYXJkbGlua3MgYXJlIHNsb3ciLgoKQ2xlYXJseSBJIGhhdmVuJ3QgdW5k ZXJzdG9vZCB3aGF0IHlvdSBhcmUgdHJ5aW5nIHRvIGRlc2NyaWJlLCBzbyBjYW4KeW91IHBsZWFz ZSBkZXNjcmliZSB0aGUgcHJvYmxlbSBpbiBtb3JlIGRldGFpbCBhbmQgbm90IGFzc3VtZSBJIGtu b3cKYW55dGhpbmcgYWJvdXQgd2hlcmUgeW91IGFyZSBjb3B5aW5nIGZyb20vdG8sIHdoYXQgdGhl IGhhcmR3YXJlIG9yCmZpbGVzeXN0ZW0gbGF5b3V0IGlzLCBldGMuCgpJIGtub3cgSSBoYXZlbid0 IGFuc3dlcmVkIHlvdXIgcXVlc3Rpb24gYW5kIGp1c3QgZmlyZWQgYmFjayBhIGJ1bmNoCm9mIHF1 ZXN0aW9ucywgYnV0IEkgbmVlZCB0byBrbm93IHNwZWNpZmljcyB0byBiZSBhYmxlIHRvIGhhdmUg YW55CmNoYW5jZSBvZiB1bmRlcnN0YW5kaW5nIHRoZSBwcm9ibGVtIHlvdSBhcmUgaGF2aW5nLgoK Q2hlZXJzLAoKRGF2ZS4KLS0gCkRhdmUgQ2hpbm5lcgpkYXZpZEBmcm9tb3JiaXQuY29tCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwp4ZnMgbWFpbGluZyBs aXN0Cnhmc0Bvc3Muc2dpLmNvbQpodHRwOi8vb3NzLnNnaS5jb20vbWFpbG1hbi9saXN0aW5mby94 ZnMK