X2Go Bug report logs - #1515
x2goclient session resume is much slower on Windows than on Linux

version graph

Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: "Abt, Johannes" <johannes.abt@advantest.com>

Date: Mon, 28 Dec 2020 11:35:02 UTC

Severity: normal

Found in version 4.1.2.2

Full log


Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

Received: (at submit) by bugs.x2go.org; 28 Dec 2020 11:33:39 +0000
From johannes.abt@advantest.com  Mon Dec 28 12:33:36 2020
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
	ymir.das-netzwerkteam.de
X-Spam-Level: 
X-Spam-Status: No, score=-0.9 required=3.0 tests=BAYES_00,DKIM_SIGNED,
	DKIM_VALID,FORGED_SPF_HELO,SPF_HELO_PASS autolearn=no
	autolearn_force=no version=3.4.2
Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on20712.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe5a::712])
	by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 8AC025DB0D
	for <submit@bugs.x2go.org>; Mon, 28 Dec 2020 12:33:34 +0100 (CET)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
 b=RbTBwyAGekGrxjFEXp4RdY6SGo8aJ0L63ewf70LwTkO+QoZCF5iBU7cQbwPx1esa3bC6Sq0qTQYJHF7tv5uxYixbqWOjXkhyi8oW2hb6wUisBNMgYcR4C7VV42tTIfviS9bV3ZhxS3F2aNSZb0rBIKlKAhBGj/HXDMU80+b80FgL7s/dNWvfMuMy4tFR54mcYIL125sZHbSa/WnDiQRPkjo6UgSJgMnNAkdHn8sAn8LEUkdxt+8C9aVJoKR1F/1NGaH3ige9rulHDzx9aeevm0MLzMvNLzsQc7ir7o7xlyYM1tB1toEB0vKUb1OD6SJfWi4oMHerGZIiwMWCoFcKDg==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;
 s=arcselector9901;
 h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
 bh=Jy9BniTmMsl3GjQ2oCSGUE4I7dCQsKPr1/adNq8Nh58=;
 b=DrQ9EGqkDsYU/HyQmbzmPDveq0jByG8BeqMuA/9/MEu7Zh6rNByv5t+FOs3sutkzA3X5uwILwEtQAjUU5GhSIjldQKfMrdPM/8CiVJ/c5DuCdA1UyP557T6/2CV1PBktfUOKXvhyfAbiUkYev+tAXDYQ0Vdyu+1yczFD5Lwebder5ajDsUrlW7apBrvchhdwVuJOB4Kzex7qAVerjuVphXrvEnSTaxrtGVP8IicV/WSAMXx0WlrnJ9yytqpsUswQwyHxxcw0/roJyTaWXPEXwZRPXcRaGIbDlugjikmg8+z5sDZCMXrFPkfNUHBhX0wySbmcdgGVWpLUKCf4kO3TRQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass
 smtp.mailfrom=advantest.com; dmarc=pass action=none
 header.from=advantest.com; dkim=pass header.d=advantest.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=myadvantest.onmicrosoft.com; s=selector1-myadvantest-onmicrosoft-com;
 h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
 bh=Jy9BniTmMsl3GjQ2oCSGUE4I7dCQsKPr1/adNq8Nh58=;
 b=arutLY2+c/CiT8uAtaH05+FrzhyHX8HjmyDKshPTOTJQQqUiDmPRPRPFDTe3QfN7XJbjw0DZl/6t5l7VTq1v2i5CYsWhNQZ4ydZAUYFBWlpneyqEcw5r90krm/XhulESnk7z77EAf8NwOpHrIMqBMl8blyN3WI1zqKzxW6PXfMs=
Received: from DM6PR05MB4988.namprd05.prod.outlook.com (2603:10b6:5:7d::11) by
 DM6PR05MB6523.namprd05.prod.outlook.com (2603:10b6:5:12e::29) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.3721.11; Mon, 28 Dec 2020 11:33:24 +0000
Received: from DM6PR05MB4988.namprd05.prod.outlook.com
 ([fe80::592a:246d:1eea:791c]) by DM6PR05MB4988.namprd05.prod.outlook.com
 ([fe80::592a:246d:1eea:791c%4]) with mapi id 15.20.3721.019; Mon, 28 Dec 2020
 11:33:24 +0000
From: "Abt, Johannes" <johannes.abt@advantest.com>
To: "submit@bugs.x2go.org" <submit@bugs.x2go.org>
Subject: x2goclient session resume is much slower on Windows than on Linux
Thread-Topic: x2goclient session resume is much slower on Windows than on
 Linux
Thread-Index: AdbdDT37FFDs84mLT/WhwwWhCcDFMQ==
Date: Mon, 28 Dec 2020 11:33:24 +0000
Message-ID:
 <DM6PR05MB49883168C6A1ED4267C5DF939CD90@DM6PR05MB4988.namprd05.prod.outlook.com>
Accept-Language: de-DE, en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: bugs.x2go.org; dkim=none (message not signed)
 header.d=none;bugs.x2go.org; dmarc=none action=none
 header.from=advantest.com;
x-originating-ip: [84.166.154.99]
x-ms-publictraffictype: Email
x-ms-office365-filtering-ht: Tenant
x-ms-office365-filtering-correlation-id: 28ef84d2-50b1-4df4-ad90-08d8ab24637e
x-ms-traffictypediagnostic: DM6PR05MB6523:
x-microsoft-antispam-prvs:
 <DM6PR05MB65232933C7EC3F7EA63A9BDC9CD90@DM6PR05MB6523.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:7219;
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info:
 7YCMC5VLhMvActk/qrHAqdGSVDhKe0bzx+VVkHxaqM3G1FSr6x9HCM6Rh+7tW/kex6s+hl/kE+nx1Oriw3iw/4nwYg/NwK7dQQBWNZ273IHKRpt/WF/N6muYgKtsSPk/GK2B0hGPB9Q+k8uIP68YLn8rHXK9QOmXDEXrR1lFYseKP1PYoiYIWKBdhkv5QFQmCOPM6ogHjm22E4wcVqh9EydE0ngyTHEVB1VZge7Jr6VCHfGXZTqcYf2tbgbLdqNOY7TwWxQ4Uezj3hZDv2EPj7GrO0C4uXW9kl/Pe8Jv3UTAHMCzZ4xlB6IJUIyGRqX1Qc2SW8+SUcspxqBo1tXeRjX4FTl2zhej2tI455YmaxeFBf1NZUKYwis8OoWT40ledy4HkoUYt2fDs1ZXrLek0eKEwLw/0ikdxd3kDhG8rXhBYVgWL9zIkJLBR/YkLHHwlU2UHvw5IqIQ2qhrt79L7Q==
x-forefront-antispam-report:
 CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM6PR05MB4988.namprd05.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(376002)(396003)(136003)(366004)(39850400004)(346002)(9686003)(55016002)(83380400001)(186003)(6916009)(66946007)(33656002)(966005)(316002)(6506007)(76116006)(8676002)(26005)(8936002)(66446008)(66556008)(71200400001)(478600001)(64756008)(66476007)(5660300002)(7696005)(4744005)(2906002)(52536014)(86362001);DIR:OUT;SFP:1102;
x-ms-exchange-antispam-messagedata:
 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
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: ADVANTEST.COM
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: DM6PR05MB4988.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 28ef84d2-50b1-4df4-ad90-08d8ab24637e
X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Dec 2020 11:33:24.8674
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: b0de9dff-4833-4d4f-b442-1e0dbfae2ec8
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: Wqz7Toyh3Dps4k+9jWfyVZBPhjIRf74BBdkHwbWL4IJilErZ3yiPQqqPcvf8+NEtfzIyK88BLzs09hb4tXP7WjS/MHldbvWvzcIydWMSi2I=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR05MB6523
Package: x2goclient
Version: 4.1.2.2

Synopsis: session resume takes much longer on Windows than on Linux (e.g. 25s vs 14s)

Preparing the benchmark on both Linux and Windows clients:
* Setup a custom ("/usr/bin/konsole") remote session
* Connection settigs: identical (for example: WAN, 64k-png-jpeg)

Create the Session:
* start the session on one of the clients => a remote "konsole" window opens up
* to get some graphics: "firefox https://www.kernel.org"; now there are two open windows
* suspend the session

Execute the Benchmark: on both clients:
* start the remote session
* use a stopwatch to get the elapsed time for both windows opening up and showing their content
* repeat the benchmark and use the median result

Expected result: same startup time

The result that I get is (on a 50MBit DSL line, with a RHEL7.4 server on x2go*-4.1.0.3-9.el7.x64_64): The 8 year old Linux client with two cores takes 14 seconds; the Windows laptop with a more modern CPU and much more RAM takes 25 seconds.


Send a report that this bug log contains spam.


X2Go Developers <owner@bugs.x2go.org>. Last modified: Fri Mar 29 12:51:50 2024; Machine Name: ymir.das-netzwerkteam.de

X2Go Bug tracking system

Debbugs is free software and licensed under the terms of the GNU Public License version 2. The current version can be obtained from https://bugs.debian.org/debbugs-source/.

Copyright © 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson, 2005-2017 Don Armstrong, and many other contributors.