From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q0TMI8xT150566 for ; Sun, 29 Jan 2012 16:18:09 -0600 Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id ogxGlEflrMrdudSK for ; Sun, 29 Jan 2012 14:18:06 -0800 (PST) Date: Mon, 30 Jan 2012 09:18:03 +1100 From: Dave Chinner Subject: Re: Insane file system overhead on large volume Message-ID: <20120129221803.GF15102@dastard> References: <201201281555.22179.Martin@lichtvoll.de> <4F2415B2.3080605@sandeen.net> <201201281723.42786.Martin@lichtvoll.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <201201281723.42786.Martin@lichtvoll.de> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Martin Steigerwald Cc: Manny , Eric Sandeen , xfs@oss.sgi.com T24gU2F0LCBKYW4gMjgsIDIwMTIgYXQgMDU6MjM6NDJQTSArMDEwMCwgTWFydGluIFN0ZWlnZXJ3 YWxkIHdyb3RlOgo+IEFtIFNhbXN0YWcsIDI4LiBKYW51YXIgMjAxMiBzY2hyaWViIEVyaWMgU2Fu ZGVlbjoKPiA+IE9uIDEvMjgvMTIgODo1NSBBTSwgTWFydGluIFN0ZWlnZXJ3YWxkIHdyb3RlOgo+ IEZvciB0aGUgZ29yeSBkZXRhaWxzOgo+IAo+ID4gPiBXaHkgaXMgaXQgdGhhdCBJIGdldAo+IFvi gKZdCj4gPiA+IG1lcmthYmE6L3RtcD4gTEFORz1DIGRmIC1oVCAvbW50L3plaXQKPiA+ID4gRmls ZXN5c3RlbSAgICAgVHlwZSAgU2l6ZSAgVXNlZCBBdmFpbCBVc2UlIE1vdW50ZWQgb24KPiA+ID4g L2Rldi9sb29wMCAgICAgeGZzICAgIDMwVCAgIDMzTSAgIDMwVCAgIDElIC9tbnQvemVpdAo+ID4g PiAKPiA+ID4gCj4gPiA+IDMzTWlCIHVzZWQgb24gZmlyc3QgbW91bnQgaW5zdGVhZCBvZiA1Pwo+ ID4gCj4gPiBOb3Qgc3VyZSBvZmZoYW5kLCBkaWZmZXJlbmNlcyBpbiB4ZnNwcm9ncyB2ZXJzaW9u IG1rZnMgZGVmYXVsdHMKPiA+IHBlcmhhcHMuCj4gCj4gT2theSwgdGhhdHMgZmluZSB3aXRoIG1l LiBJIHdhcyBqdXN0IGN1cmlvdXMuIEl0IGRvZXNuwrR0IG1hdHRlciBtdWNoLgoKTW9yZSBsaWtl bHkgdGhlIGtlcm5lbC4gT2xkZXIga2VybmVscyBvbmx5IHVzZSAxMDI0IGJsb2NrcyBmb3IKdGhl IHJlc2VydmUgYmxvY2sgcG9vbCwgd2hpbGUgbW9yZSByZWNlbnQgb25lcyB1c2UgODE5MiBibG9j a3MuCgokIGdsIC1uIDEgOGJhYmQ4YQpjb21taXQgOGJhYmQ4YTJlNzVjY2NmZjMxNjdhNjExNzZj MmEzZTk3N2UxMzc5OQpBdXRob3I6IERhdmUgQ2hpbm5lciA8ZGF2aWRAZnJvbW9yYml0LmNvbT4K RGF0ZTogICBUaHUgTWFyIDQgMDE6NDY6MjUgMjAxMCArMDAwMAoKICAgIHhmczogSW5jcmVhc2Ug dGhlIGRlZmF1bHQgc2l6ZSBvZiB0aGUgcmVzZXJ2ZWQgYmxvY2tzIHBvb2wKCiAgICBUaGUgY3Vy cmVudCBkZWZhdWx0IHNpemUgb2YgdGhlIHJlc2VydmVkIGJsb2NrcyBwb29sIGlzIGVhc3kgdG8g ZGVwbGV0ZQogICAgd2l0aCBjZXJ0YWluIHdvcmtsb2FkcywgaW4gcGFydGljdWxhciB3b3JrbG9h ZHMgdGhhdCBkbyBsb3RzIG9mIGNvbmN1cnJlbnQKICAgIGRlbGF5ZWQgYWxsb2NhdGlvbiBleHRl bnQgY29udmVyc2lvbnMuICBJZiBlbm91Z2ggdHJhbnNhY3Rpb25zIGFyZSBydW5uaW5nCiAgICBp biBwYXJhbGxlbCBhbmQgdGhlIGVudGlyZSBwb29sIGlzIGNvbnN1bWVkIHRoZW4gc3Vic2VxdWVu dCBjYWxscyB0bwogICAgeGZzX3RyYW5zX3Jlc2VydmUoKSB3aWxsIGZhaWwgd2l0aCBFTk9TUEMu ICBBbHNvIGFkZCBhIHJhdGUgbGltaXRlZAogICAgd2FybmluZyBzbyB3ZSBrbm93IGlmIHRoaXMg c3RhcnRzIGhhcHBlbmluZyBhZ2Fpbi4KCiAgICBUaGlzIGlzIGFuIHVwZGF0ZWQgdmVyc2lvbiBv ZiBhbiBvbGQgcGF0Y2ggZnJvbSBMYWNobGFuIE1jSWxyb3kuCgogICAgU2lnbmVkLW9mZi1ieTog RGF2ZSBDaGlubmVyIDxkYXZpZEBmcm9tb3JiaXQuY29tPgogICAgU2lnbmVkLW9mZi1ieTogQWxl eCBFbGRlciA8YWVsZGVyQHNnaS5jb20+Cgo+IEJ1dCB3aGVuIEkgcmV2aWV3IGl0LCBjcmVhdGlu ZyBhIDMwVEIgWEZTIGZpbGVzeXN0ZW0gc2hvdWxkIGludm9sdmUgd3JpdGluZwo+IHNvbWUgbWV0 YWRhdGEgYXQgZGlmZmVyZW50IHBsYWNlcyBvZiB0aGUgZmlsZS4KPiAKPiBJIGdldDoKPiAKPiBt ZXJrYWJhOi9tbnQvemVpdD4gTEFORz1DIHhmc19ibWFwIGZzZmlsZQo+IGZzZmlsZToKPiAgICAg ICAgIDA6IFswLi4yNTVdOiA5Ni4uMzUxCj4gICAgICAgICAxOiBbMjU2Li4yMTQ3NDgzNjM5XTog aG9sZQo+ICAgICAgICAgMjogWzIxNDc0ODM2NDAuLjIxNDc0ODM2NzFdOiAzNDAwMDMyLi4zNDAw MDYzCj4gICAgICAgICAzOiBbMjE0NzQ4MzY3Mi4uNDI5NDk2NzI3OV06IGhvbGUKPiAgICAgICAg IDQ6IFs0Mjk0OTY3MjgwLi40Mjk0OTY3MzExXTogMzQwMDA2NC4uMzQwMDA5NQo+ICAgICAgICAg NTogWzQyOTQ5NjczMTIuLjY0NDI0NTA5MTldOiBob2xlCj4gICAgICAgICA2OiBbNjQ0MjQ1MDky MC4uNjQ0MjQ1MDk1MV06IDM0MDAwOTYuLjM0MDAxMjcKPiAgICAgICAgIDc6IFs2NDQyNDUwOTUy Li44NTg5OTM0NTU5XTogaG9sZQoKLi4uLi4KClllYWgsIHRoYXQncyBhbGwgdGhlIEFHIGhlYWRl cnMuCgo+IE9rYXksIGl0IG5lZWRlZCB0byB3cml0ZSAyIEdCOgo+IAo+IG1lcmthYmE6L21udC96 ZWl0PiBkdSAtaCBmc2ZpbGUgCj4gMiwwRyAgICBmc2ZpbGUKPiBtZXJrYWJhOi9tbnQvemVpdD4g ZHUgLS1hcHBhcmVudC1zaXplIC1oIGZzZmlsZQo+IDMwVCAgICAgZnNmaWxlCj4gbWVya2FiYTov bW50L3plaXQ+Cj4gCj4gSSBkaWRuwrR0IGV4cGVjdCBta2ZzLnhmcyB0byB3cml0ZSAyIEdCLCBi dXQgd2hlbiB0aGlua2luZyB0aHJvdWdoIGl0Cj4gZm9yIGEgMzAgVEIgZmlsZXN5c3RlbSBJIGZp bmQgdGhpcyByZWFzb25hYmxlLgoKSXQgemVyb2VkIHRoZSBsb2csIHdoaWNoIHdpbGwgYmUganVz dCB1bmRlciAyR0IgaW4gc2l6ZSBmb3IgYQpmaWxlc3lzdGVtIHRoYXQgbGFyZ2UuIFplcm9pbmcg dGhlIGxvZyBhY2NvdW50cyBmb3IgPjk5JSBvZiB0aGUgSU8KdGhhdCBta2ZzIGRvZXMgZm9yIG1v c3Qgbm9ybWFsIGNhc2VzLgoKQ2hlZXJzLAoKRGF2ZS4KLS0gCkRhdmUgQ2hpbm5lcgpkYXZpZEBm cm9tb3JiaXQuY29tCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwp4ZnMgbWFpbGluZyBsaXN0Cnhmc0Bvc3Muc2dpLmNvbQpodHRwOi8vb3NzLnNnaS5jb20v bWFpbG1hbi9saXN0aW5mby94ZnMK