Received: by 2002:a25:b323:0:0:0:0:0 with SMTP id l35csp334764ybj; Thu, 19 Sep 2019 15:16:11 -0700 (PDT) X-Google-Smtp-Source: APXvYqwHz6AyOlje1EFrll9HnJmRkm+Ch+XR4kUccv8IaCIRSydmC6Wy/f7frsOmH7+xCHRgDa/W X-Received: by 2002:a17:906:6048:: with SMTP id p8mr16658647ejj.297.1568931371509; Thu, 19 Sep 2019 15:16:11 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1568931371; cv=pass; d=google.com; s=arc-20160816; b=AZ2VgpyxFptayNd+KqY6YQ+6CndefD4Un6kYgDsM5InppmzNeIcDqVb7UWVYIZonAP zxsaja079dTWWwM4UHECJ7yFHbU5KsISrSP2WUSPpYGqWlHmV65I6wJV4g203g4AF1Aj x0Phv/op6H5lzRN5iPbG5h94GCVGQb20wKa/IcK1D9A5aAWnLqSRyg96ihDO4nkRYkwZ 9oEgT7j86zqirQTCE4pPgeNij8B99JP9TOApUH/tuiy4qSwcfb1hV8pwjMrOHDrJLcts RoOAKrHwTlrG1fhCJZTe7m+l5uuJW5pueQ7czKKpt9pV3UZ4La+wKWXk398M4AVYD2jo 5OOA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:to:from :dkim-signature; bh=/sfYH8jabzhJfL8sRdD+IFrmayHs5MvRgp/XDTGbNtE=; b=ngkYGbaXQlUtPf2NS3T6Ac4AIrHV3YasnBJVuSLGBfG6H5LRfSAanSt+1/VazATQvQ iugbwCMENLSxjCTtjtay+q4LQPtzs4gTJE9FTFX1XuPzZGXvxLTx0ujHh10pnWGu15L+ E2O85oeEOhXuJuQ1N/MDteVEwo+AZFtfxJ5YTjaD0LE76f7Os1PW03mFlcK25EkPuG2+ IREsyLu/ziwdZjUuC7eCxLkWra8lmdqH5t+iLa4H9Lix3jIW8gBpi2qvH/eJ6Mj4J7mL QvAOXibKLe0QkbBZFyLdgRlWORBB7bLmsH7w5YwBky6hehegnjbYr1+eKtVLxdherj49 RK3A== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@hammerspace.com header.s=selector2 header.b=YFcU6Kt9; arc=pass (i=1 spf=pass spfdomain=hammerspace.com dkim=pass dkdomain=hammerspace.com dmarc=pass fromdomain=hammerspace.com); spf=pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=hammerspace.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i9si5198024ejy.106.2019.09.19.15.15.47; Thu, 19 Sep 2019 15:16:11 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@hammerspace.com header.s=selector2 header.b=YFcU6Kt9; arc=pass (i=1 spf=pass spfdomain=hammerspace.com dkim=pass dkdomain=hammerspace.com dmarc=pass fromdomain=hammerspace.com); spf=pass (google.com: best guess record for domain of linux-nfs-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=hammerspace.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389576AbfISUF7 (ORCPT + 99 others); Thu, 19 Sep 2019 16:05:59 -0400 Received: from mail-eopbgr720098.outbound.protection.outlook.com ([40.107.72.98]:62019 "EHLO NAM05-CO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2392458AbfISUF7 (ORCPT ); Thu, 19 Sep 2019 16:05:59 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UWb9pgrX35uzTn6G3aaVGd+xtRnpznHhfAyewqJnN0E5Y9wP3A9QhMa0P6pxCpBGw3ZYfAQg1ke3GE3Z2ATK0AQTSIUBRdCLHb2mMPf8hL8mr6tRouQiEAP52o3fUKOfDnK2w52rLuWPByjSwUuwG9EzKBzCG2Qs/nnfR+gIxS/tZzdtMOhLNSaKetaFZwmRiQhq5JSmtuT5EBij9bHWHIH+DbqBD7fkc66Zbv+RJpBd2uvZA+MvSLK5EinXLyz8O3FChnxAjG5sMBLdK8oSdZsqNBz9OZ14+idDyQfOCrnmyd2dz36KIayolwtQI/f7L+RV1I7cw4UAOyq+1h1W8g== 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=/sfYH8jabzhJfL8sRdD+IFrmayHs5MvRgp/XDTGbNtE=; b=d5ouRU7NnpXCpmUfgApx9j4VjyPmBgEGxyFS1mwSEjRu4xWNMSndKITiakkmfVlSS8CdsNmMjxHbT+SbPPfW+8FgsLDnoszhzbqoadeC6dxuRQ0lkhoq1zdzao98EYMEHyymvXiQCc8X67a5LSYD+eN0lWNlb3fQAYzbN/0Ufdkzxs5vNy7tyYoCZaLwYAbDWTFxiHqs/jOb4jfA6135rjbchmJrop21dhMtDPF7P2/cYNyv5eCwWGrCIUpRE26IBm1/qFCZzB/jF/jGH7fHr+mizfxD2IBpA1mfuiu3mhxL6vYuJEIzjeJChkDfTqvWjh9bqEGoIuSEqQQjv+E8mw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=hammerspace.com; dmarc=pass action=none header.from=hammerspace.com; dkim=pass header.d=hammerspace.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hammerspace.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=/sfYH8jabzhJfL8sRdD+IFrmayHs5MvRgp/XDTGbNtE=; b=YFcU6Kt92caeCEa/R1sweKT7FYOXx768GASCBGk2OKah4wNrs9kQyas6bJfbirPMe5+b0YpP5R+t8yDoS+qRd4rv7ObT2TJm/DTClEYJPxtSzCiRGdz2q6NzObRYgGvTUNO1l4mzbNXkqv2tNw25nCT/kExkowFSi6P++BRs9Ts= Received: from DM5PR13MB1851.namprd13.prod.outlook.com (10.171.159.143) by DM5PR13MB1467.namprd13.prod.outlook.com (10.175.110.137) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.15; Thu, 19 Sep 2019 20:05:55 +0000 Received: from DM5PR13MB1851.namprd13.prod.outlook.com ([fe80::70fd:85c2:8ea9:a0b6]) by DM5PR13MB1851.namprd13.prod.outlook.com ([fe80::70fd:85c2:8ea9:a0b6%9]) with mapi id 15.20.2284.009; Thu, 19 Sep 2019 20:05:55 +0000 From: Trond Myklebust To: "alkisg@gmail.com" , "linux-nfs@vger.kernel.org" Subject: Re: rsize,wsize=1M causes severe lags in 10/100 Mbps Thread-Topic: rsize,wsize=1M causes severe lags in 10/100 Mbps Thread-Index: AQHVbwMN/jYKfSJ+jEOCnZqjx88626czK6CAgAA1K4CAAAiCAIAAAYOAgAACcYA= Date: Thu, 19 Sep 2019 20:05:55 +0000 Message-ID: <1d5f6643330afd2c04350006ad2a60e83aebb59d.camel@hammerspace.com> References: <80353d78-e3d9-0ee2-64a4-cd2f22272fbe@gmail.com> <3d00928cd3244697442a75b36b75cf47ef872657.camel@hammerspace.com> <7afc5770-abfa-99bb-dae9-7d11680875fd@gmail.com> <915fa536-c992-3b77-505e-829c4d049b02@gmail.com> In-Reply-To: <915fa536-c992-3b77-505e-829c4d049b02@gmail.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=trondmy@hammerspace.com; x-originating-ip: [68.40.189.247] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 46efffda-1067-4f62-d23c-08d73d3cc7bf x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600167)(711020)(4605104)(1401327)(2017052603328)(7193020);SRVR:DM5PR13MB1467; x-ms-traffictypediagnostic: DM5PR13MB1467: x-ms-exchange-purlcount: 1 x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-forefront-prvs: 016572D96D x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(396003)(136003)(376002)(39830400003)(346002)(366004)(199004)(189003)(446003)(2906002)(66066001)(6436002)(6246003)(110136005)(2616005)(6486002)(6306002)(6512007)(316002)(476003)(478600001)(966005)(14454004)(486006)(118296001)(11346002)(256004)(6116002)(3846002)(76176011)(81166006)(66946007)(76116006)(5660300002)(91956017)(86362001)(71190400001)(102836004)(99286004)(64756008)(7736002)(305945005)(53546011)(26005)(186003)(66556008)(8676002)(6506007)(71200400001)(66476007)(25786009)(561944003)(2501003)(81156014)(36756003)(8936002)(66446008)(229853002)(142933001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR13MB1467;H:DM5PR13MB1851.namprd13.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: hammerspace.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: Wmbb0Do1HW8Git6QeXFTQqMF+5XIBLal6dKN0cgoG+6ffqTBjWyCfUzjOEDprrXIGLIlKAVXFL8UJh+MLYyjHhKtBCe9zrLSIGAe6cGHr0+2ngK72MqCeKUChkqiV0ryLSWnA2yv4UdWdgX6nB9L1OCATiAI0DrC8t9xG2QUBptQcMJiI1Q7+TZOwstXgWmCUOqk3HExPQeAKpvQ3usolFyLzoKY7AUjwnESI5A0wWsZuVaqdLhtq9yVfcJoq+duFak1W2WB/jhEYIBvVbOHLu/UsM6nGbcvHulb2C7p29qhkWfSlhh+JdpnAvAMbkMtgC4q3UCkw7J8mnJptNItoPS+7CE6kIq7F0CwE1U+cwMWl7xsdmkzE9awRk6Uys9RtX+KLziu8n8YLmkO+FOzZeaSTt8MjwAseMywWe3WHso= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="utf-8" Content-ID: <7F4FDF0268294D43B645302C2255FEFF@namprd13.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: hammerspace.com X-MS-Exchange-CrossTenant-Network-Message-Id: 46efffda-1067-4f62-d23c-08d73d3cc7bf X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Sep 2019 20:05:55.3854 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 0d4fed5c-3a70-46fe-9430-ece41741f59e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: BbqyI/R+dazoQBTzyGAcfy0cXlJN3D9jjSV3o/T31apST3Tb+58vyfQpFGPR4GVsLxjv5pz61ILUQxmKflr0oQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR13MB1467 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org T24gVGh1LCAyMDE5LTA5LTE5IGF0IDIyOjU3ICswMzAwLCBBbGtpcyBHZW9yZ29wb3Vsb3Mgd3Jv dGU6DQo+IE9uIDkvMTkvMTkgMTA6NTEgUE0sIFRyb25kIE15a2xlYnVzdCB3cm90ZToNCj4gPiBJ IGRvbid0IHVuZGVyc3RhbmQgd2h5IGtsaWJjIHdvdWxkIGRlZmF1bHQgdG8gc3VwcGx5aW5nIGEg dGltZW89Nw0KPiA+IGFyZ3VtZW50IGF0IGFsbC4gSXQgd291bGQgYmUgTVVDSCBiZXR0ZXIgaWYg aXQganVzdCBsZXQgdGhlIGtlcm5lbA0KPiA+IHNldA0KPiA+IHRoZSBkZWZhdWx0LCB3aGljaCBp biB0aGUgY2FzZSBvZiBUQ1AgaXMgdGltZW89NjAwLg0KPiA+IA0KPiA+IEkgYWdyZWUgd2l0aCB5 b3VyIGFyZ3VtZW50IHRoYXQgcmVwbGF5aW5nIHJlcXVlc3RzIGV2ZXJ5IDAuNw0KPiA+IHNlY29u ZHMgaXMNCj4gPiBqdXN0IGdvaW5nIHRvIGNhdXNlIGNvbmdlc3Rpb24uIFRDUCBwcm92aWRlcyBm b3IgcmVsaWFibGUgZGVsaXZlcnkNCj4gPiBvZg0KPiA+IFJQQyBtZXNzYWdlcyB0byB0aGUgc2Vy dmVyLCB3aGljaCBpcyB3aHkgdGhlIGtlcm5lbCBkZWZhdWx0IGlzIGENCj4gPiBmdWxsDQo+ID4g bWludXRlLg0KPiA+IA0KPiA+IFNvIHBsZWFzZSBhc2sgdGhlIGtsaWJjIGRldmVsb3BlcnMgdG8g Y2hhbmdlIGxpYm1vdW50IHRvIGxldCB0aGUNCj4gPiBrZXJuZWwNCj4gPiBkZWNpZGUgdGhlIGRl ZmF1bHQgbW91bnQgb3B0aW9ucy4gVGhlaXIgY3VycmVudCBzZXR0aW5nIGlzIGp1c3QNCj4gPiBw bGFpbg0KPiA+IHdyb25nLg0KPiANCj4gVGhpcyB3YXMgd2hhdCBJIGFza2VkIGluIG15IGZpcnN0 IG1lc3NhZ2UgdG8gdGhlaXIgbWFpbGluZyBsaXN0LA0KPiBodHRwczovL2xpc3RzLnp5dG9yLmNv bS9hcmNoaXZlcy9rbGliYy8yMDE5LVNlcHRlbWJlci8wMDQyMzQuaHRtbA0KPiANCj4gVGhlbiBJ IHJlYWxpemVkIHRoYXQgdGltZW89NjAwIGp1c3QgaGlkZXMgdGhlIHJlYWwgcHJvYmxlbSwNCj4g d2hpY2ggaXMgcnNpemU9MU0uDQo+IA0KPiBORlMgZGVmYXVsdHM6IHRpbWVvPTYwMCxyc2l6ZT0x TSA9PiBsYWcNCj4gbmZzbW91bnQgZGVmYXVsdHM6IHRpbWVvPTcscnNpemU9MU1LID0+IGxhZyBB TkQgZG1lc2cgZXJyb3JzDQo+IA0KPiBNeSBwcm9wb3NhbDogdGltZW89d2hhdGV2ZXIscnNpemU9 MzJLID0+IGFsbCBmaW5lDQo+IA0KPiBJZiBtb3JlIGJlbmNobWFya3MgYXJlIG5lZWRlZCBmcm9t IG1lIHRvIGRvY3VtZW50IHRoZQ0KPiAiTkZTIGRlZmF1bHRzOiB0aW1lbz02MDAscnNpemU9MU0g PT4gbGFnIg0KPiBJIGNhbiBzdXJlbHkgcHJvdmlkZSB0aGVtLg0KDQpUaGVyZSBhcmUgcGxlbnR5 IG9mIG9wZXJhdGlvbnMgdGhhdCBjYW4gdGFrZSBsb25nZXIgdGhhbiA3MDAgbXMgdG8NCmNvbXBs ZXRlLiBTeW5jaHJvbm91cyB3cml0ZXMgdG8gZGlzayBhcmUgb25lLCBidXQgQ09NTUlUIChpLmUu IHRoZSBORlMNCmVxdWl2YWxlbnQgb2YgZnN5bmMoKSkgY2FuIG9mdGVuIHRha2UgbXVjaCBsb25n ZXIgZXZlbiB0aG91Z2ggaXQgaGFzIG5vDQpwYXlsb2FkLg0KDQpTbyB0aGUgcHJvYmxlbSBpcyBu b3QgdGhlIHNpemUgb2YgdGhlIFdSSVRFIHBheWxvYWQuIFRoZSByZWFsIHByb2JsZW0NCmlzIHRo ZSB0aW1lb3V0Lg0KDQpUaGUgYm90dG9tIGxpbmUgaXMgdGhhdCBpZiB5b3Ugd2FudCB0byBrZWVw IHRpbWVvPTcgYXMgYSBtb3VudCBvcHRpb24NCmZvciBUQ1AsIHRoZW4geW91IGFyZSBvbiB5b3Vy IG93bi4NCg0KLS0gDQpUcm9uZCBNeWtsZWJ1c3QNCkxpbnV4IE5GUyBjbGllbnQgbWFpbnRhaW5l ciwgSGFtbWVyc3BhY2UNCnRyb25kLm15a2xlYnVzdEBoYW1tZXJzcGFjZS5jb20NCg0KDQo=