From owner-freebsd-fs@FreeBSD.ORG Mon Jan 28 16:11:48 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 78D5CD06; Mon, 28 Jan 2013 16:11:48 +0000 (UTC) (envelope-from laurencesgill@googlemail.com) Received: from mail-wi0-f179.google.com (mail-wi0-f179.google.com [209.85.212.179]) by mx1.freebsd.org (Postfix) with ESMTP id BFD5C8D9; Mon, 28 Jan 2013 16:11:47 +0000 (UTC) Received: by mail-wi0-f179.google.com with SMTP id o1so1587895wic.12 for ; Mon, 28 Jan 2013 08:11:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=x-received:date:from:to:cc:subject:message-id:in-reply-to :references:x-mailer:mime-version:content-type :content-transfer-encoding; bh=rg9H/7I/0w+W7kHM8c5+sIRDAUeRSogB+FSwAWsitUs=; b=1KWjJpJXQGe93+JPOWBoEPmjYV5OF5ctAz1j8cfrcJbE4vrH5xJp/3K39rGOQHRVyJ /oMBZC8u8fDQexWst0lvfLibcrNI6lkUhlaFnyTiShfXPgDgOEUMFn9WW7mX2cekP0mU RifRbRoNI1JhSfvEQKJnPn0T9yog1ph3MxbVRBkrFyjt3hfpWbE2RUs7+9tf0p0EzFE5 HhdskdjoSkZf6RZKVYlIx5i/U6xz+tj8Wc4tFayu+8/lo5LlJNfV6OTbSZ/jpXUcmEgy cTO68Ok8J8GWt8T192p61FjC+xJjrbXxr5KQQQt6vQ56YY2dmywUfWM5diKNmQi26zem gC3Q== X-Received: by 10.180.81.39 with SMTP id w7mr10873810wix.15.1359389501290; Mon, 28 Jan 2013 08:11:41 -0800 (PST) Received: from localhost (gateway.ash.thebunker.net. [213.129.64.4]) by mx.google.com with ESMTPS id bd7sm14112933wib.8.2013.01.28.08.11.40 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 28 Jan 2013 08:11:41 -0800 (PST) Date: Mon, 28 Jan 2013 16:12:28 +0000 From: Laurence Gill To: freebsd-fs@freebsd.org Subject: Re: HAST performance overheads? Message-ID: <20130128161228.477ce174@googlemail.com> In-Reply-To: <20130128120055.6ca7c734@googlemail.com> References: <20130125121044.1afac72e@googlemail.com> <20130127134845.GC1346@garage.freebsd.pl> <20130128120055.6ca7c734@googlemail.com> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.12; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Jan 2013 16:11:48 -0000 LS0tLS1CRUdJTiBQR1AgU0lHTkVEIE1FU1NBR0UtLS0tLQ0KSGFzaDogU0hBMQ0KDQpPbiBNb24s IDI4IEphbiAyMDEzIDEyOjAwOjU1ICswMDAwDQpMYXVyZW5jZSBHaWxsIDxsYXVyZW5jZXNnaWxs QGdvb2dsZW1haWwuY29tPiB3cm90ZToNCj4gT24gU3VuLCAyNyBKYW4gMjAxMyAxNDo0ODo0NiAr MDEwMA0KPiBQYXdlbCBKYWt1YiBEYXdpZGVrIDxwamRARnJlZUJTRC5vcmc+IHdyb3RlOg0KPiA+ IA0KPiA+IExldCdzIHRyeSB0byB0ZXN0IG9uZSBzdGVwIGF0IGEgdGltZS4gQ2FuIHlvdSB0cnkg dG8gY29tcGFyZQ0KPiA+IHNlcXVlbnRpYWwgcGVyZm9ybWFuY2Ugb2YgcmVndWxhciBkaXNrIHZz LiBIQVNUIHdpdGggbm8gc2Vjb25kYXJ5DQo+ID4gY29uZmlndXJlZD8NCj4gPiANCj4gPiBCeSBu byBzZWNvbmRhcnkgY29uZmlndXJlZCBJIG1lYW4gJ3JlbW90ZScgc2V0IHRvICdub25lJy4NCj4g PiANCj4gPiBKdXN0IGRvOg0KPiA+IA0KPiA+IAkjIGRkIGlmPS9kZXYvemVybyBvZj0vZGV2L2Rh MCBicz0xbSBjb3VudD0xMDI0MA0KPiA+IA0KPiA+IHRoZW4gY29uZmlndXJlIEhBU1QgYW5kOg0K PiA+IA0KPiA+IAkjIGRkIGlmPS9kZXYvemVybyBvZj0vZGV2L2hhc3QvZGlzazAgYnM9MW0gY291 bnQ9MTAyNDANCj4gPiANCj4gPiBXaGljaCBGcmVlQlNEIHZlcnNpb24gaXMgaXQ/DQo+ID4gDQo+ ID4gUFMuIFlvdXIgWkZTIHRlc3RzIGFyZSBwcmV0dHkgbWVhbmluZ2xlc3MsIGJlY2F1c2UgaXQg aXMgcG9zc2libGUNCj4gPiB0aGF0IGV2ZXJ5dGhpbmcgd2lsbCBlbmQgdXAgaW4gbWVtb3J5LiBJ J20gc3VyZSB0aGlzIGlzIHdoYXQNCj4gPiBoYXBwZW5zIGluICdicz0xNmsgY291bnQ9NjU1MzUn IGNhc2UuIExldCB0cnkgcmF3IHByb3ZpZGVycyBmaXJzdC4NCj4gPiANCj4gDQo+IFRoYW5rcyBm b3IgdGhlIHJlcGx5LiAgSSdtIHVzaW5nIEZyZWVCU0QgOS4xLVJFTEVBU0UuIEhlcmUgYXJlIHRo ZQ0KPiByZXN1bHRzOg0KPiANCj4gICMgZGQgaWY9L2Rldi96ZXJvIG9mPS9kZXYvZGEwIGJzPTFt IGNvdW50PTEwMjQwDQo+ICAxMDczNzQxODI0MCBieXRlcyB0cmFuc2ZlcnJlZCBpbiA3NTUuMTQ0 NjQ0IHNlY3MgKDE0MjE5MDIyIGJ5dGVzL3NlYykNCj4gDQo+ICAjIGRkIGlmPS9kZXYvemVybyBv Zj0vZGV2L2hhc3QvZGlzazAgYnM9MW0gY291bnQ9MTAyNDANCj4gIDEwNzM3NDE4MjQwIGJ5dGVz IHRyYW5zZmVycmVkIGluIDg0NC4xNjc2MDIgc2VjcyAoMTI3MTk1MzQgYnl0ZXMvc2VjKQ0KPiAN Cj4gDQo+IFdoaWNoIGluZGljYXRlcyBhIHZlcnkgc21hbGwgb3ZlcmhlYWQsIGhtbW0uLi4NCj4g DQoNCkZ1cnRoZXIgdG8gdGhpcywgc3RpY2tpbmcgd2l0aCB0aGUgMSBkaXNrIGZvciB0ZXN0aW5n LCBJIHNlZSB0aGUNCmZvbGxvd2luZzoNCg0KIC0gVUZTIG9uIGRhMA0KICMgZGQgaWY9L2Rldi96 ZXJvIG9mPXRlc3QuZGF0IGJzPTFtIGNvdW50PTEwMjQwDQogMTA3Mzc0MTgyNDAgYnl0ZXMgdHJh bnNmZXJyZWQgaW4gNzYuMTEyODczIHNlY3MgKDE0MTA3MjMwMiBieXRlcy9zZWMpDQoNCiAtIFVG UyBvbiBoYXN0L2Rpc2swDQogIyAgZGQgaWY9L2Rldi96ZXJvIG9mPXRlc3QuZGF0ICBicz0xbSBj b3VudD0xMDI0MA0KIDEwNzM3NDE4MjQwIGJ5dGVzIHRyYW5zZmVycmVkIGluIDg1NS43MjA5ODUg c2VjcyAoMTI1NDc4MDMgYnl0ZXMvc2VjKQ0KDQpXaGljaCBpcyByb3VnaGx5IHRoZSBzYW1lIGFz IHVzaW5nIHRoZSByYXcgaGFzdCBwcm92aWRlci4NCg0KDQogLSB6ZnMgb24gZGEwDQogIyBkZCBp Zj0vZGV2L3plcm8gb2Y9dGVzdC5kYXQgYnM9MW0gY291bnQ9MTAyNDANCiAxMDczNzQxODI0MCBi eXRlcyB0cmFuc2ZlcnJlZCBpbiAxMTQuMzM4OTAwIHNlY3MgKDkzOTA4NzA3IGJ5dGVzL3NlYykN Cg0KIC0gemZzIG9uIGhhc3QvZGlzazANCiAjIGRkIGlmPS9kZXYvemVybyBvZj10ZXN0LmRhdCBi cz0xbSBjb3VudD0xMDI0MA0KIDEwNzM3NDE4MjQwIGJ5dGVzIHRyYW5zZmVycmVkIGluIDEyODcu MDg4NDE2IHNlY3MgKDgzNDI0MDkgYnl0ZXMvc2VjKQ0KDQpXaGljaCBzZWVtcyBzbG93ZXIgdGhh biB0aGUgcmF3IHByb3ZpZGVyIGJ5IGFwcHJveCA0TUIvcy4NCg0KU28gSSdtIHN0aWxsIHRyeWlu ZyB0byB3b3JrIG91dCB3aHkgdGhlIGV4dHJhICJkcm9wIiB3aGVuIHVzaW5nIFpGUyBvbg0KaGFz dC4uLg0KDQoNCg0KLSAtLSANCkxhdXJlbmNlIEdpbGwNCg0KZjogMDg3MjEgMTU3IDY2NQ0Kc2t5 cGU6IGxhdXJlbmNlZ2cNCmU6IGxhdXJlbmNlc2dpbGxAZ29vZ2xlbWFpbC5jb20NClBHUCBvbiBL ZXkgU2VydmVycw0KLS0tLS1CRUdJTiBQR1AgU0lHTkFUVVJFLS0tLS0NClZlcnNpb246IEdudVBH IHYyLjAuMTkgKEdOVS9MaW51eCkNCg0KaUVZRUFSRUNBQVlGQWxFR28zUUFDZ2tReWdWdDhTcTBQ ZjhLM1FDZlZBK25vZklnUkhNL2dZaUF6aXM2VEY1Kw0KVnZZQW4ya0VPVnRHeVNSMGVadGVnR3J2 VWFwNUJWaHgNCj05ZkN2DQotLS0tLUVORCBQR1AgU0lHTkFUVVJFLS0tLS0NCg==