From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D3C3C6FD19 for ; Sun, 12 Mar 2023 19:02:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230341AbjCLTCd (ORCPT ); Sun, 12 Mar 2023 15:02:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229713AbjCLTCb (ORCPT ); Sun, 12 Mar 2023 15:02:31 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2098.outbound.protection.outlook.com [40.107.243.98]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 575C42ED4A; Sun, 12 Mar 2023 12:02:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=JB2yQ4AeMjthHMMMpkuXE927AY+xXV6+myUNo/mNcmk+v/V7LVy6WDGxapF3nkh1a3hzhxZNSl+W0yWhkggrZCkyOQ5HKH8whznN/wKYv5o9j8AxHhMXPdvXKcCVzwFo4thLhwM+2xSBr16wlIxMF/HFOPyq6zr6sEye8U58ux8KPAzaxHof0jb5v0wV9Po2zaWptT3FWGP+NfIvjHu1SDe6eIdXIoMA41d7fnqcozbC41p6YU6MH4lPxhHlVefO8i5w8gH7eOxhgcm3UTX3UThgoqhn/yWA/CJ2TWP0WFx2AD+r+v2L7MJwLFx0ejW2AJylrooSuDKVKuvoJRoDWA== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=z4I/VyERS/Hu+8nG0WelZcgGr/j7+KJ7m0IsT7AhSEE=; b=aZZ2RJ1vhSkAmS5lA7TkNMnjE3wbF207r6/vCNOE4xoAxertAl6ILsip5PnWhtHHWW2G/dwjWPg+0WVZruemDPmgQMdHn6YI67bgGQPqrfSsy+qazi0RqbEPzW4hFivLlSmsLiCYaXz3eLWpMHrlPx5lWb3Y3QkhO1l96DlcKPzo2v65YP5Cx9u0udh0JPuoqycTkMJFoFdfyfkOXEzT1qAA+xb35XvC5IIl9+96M3HeFBSq0cbNVSpJU858alj5dfy3yC/DSy9uwwrX+DFLVkGe4j7Ukea07/R9JTpcXTmpmwr9JqV7OJv9o2SsoyhRDhtQ2LNOnAeXohLLUKElYQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=corigine.com; dmarc=pass action=none header.from=corigine.com; dkim=pass header.d=corigine.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=corigine.onmicrosoft.com; s=selector2-corigine-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=z4I/VyERS/Hu+8nG0WelZcgGr/j7+KJ7m0IsT7AhSEE=; b=fSOF2fDNxJALZuhZp4imfRf2WQ0svY+gXk+++vw4X47ZcUNyNwmhD9dYTU1J+IRbUewxYwVgPkZHRPz2UmmMfD0+gMK3eS82VBh1ktUBVznIpyIUGzUb7jQO7aXqa3BdyQWYA4Te+YLON3UGpSBeRHw24oSELOGuLi6OuKRS5D8= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=corigine.com; Received: from PH0PR13MB4842.namprd13.prod.outlook.com (2603:10b6:510:78::6) by BL0PR13MB4419.namprd13.prod.outlook.com (2603:10b6:208:1c9::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.24; Sun, 12 Mar 2023 19:02:26 +0000 Received: from PH0PR13MB4842.namprd13.prod.outlook.com ([fe80::85f5:bdb:fb9e:294c]) by PH0PR13MB4842.namprd13.prod.outlook.com ([fe80::85f5:bdb:fb9e:294c%2]) with mapi id 15.20.6178.024; Sun, 12 Mar 2023 19:02:26 +0000 Date: Sun, 12 Mar 2023 20:02:19 +0100 From: Simon Horman To: Jason Xing Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jason Xing Subject: Re: [PATCH net-next] net-sysfs: display two backlog queue len separately Message-ID: References: <20230311151756.83302-1-kerneljasonxing@gmail.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230311151756.83302-1-kerneljasonxing@gmail.com> X-ClientProxiedBy: AS4P250CA0002.EURP250.PROD.OUTLOOK.COM (2603:10a6:20b:5df::20) To PH0PR13MB4842.namprd13.prod.outlook.com (2603:10b6:510:78::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH0PR13MB4842:EE_|BL0PR13MB4419:EE_ X-MS-Office365-Filtering-Correlation-Id: f01c4098-7aae-45fb-7db5-08db232c51b5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR13MB4842.namprd13.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(4636009)(346002)(39830400003)(396003)(136003)(366004)(376002)(451199018)(86362001)(36756003)(38100700002)(66556008)(66946007)(4326008)(6916009)(66476007)(8676002)(41300700001)(8936002)(478600001)(316002)(44832011)(2906002)(2616005)(83380400001)(186003)(6666004)(6512007)(6506007)(6486002)(5660300002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?60ktPShV2QQEzNOTX7QIb+MixjqiaX2t1ELBPtdEBeMu8Wl1j37iaMREeQUw?= =?us-ascii?Q?oOWuy42ZEUqYrr2LFXgwuOnWP0T1wO7K/M1nIqAT3FpUiKfzaiRONx0luNui?= =?us-ascii?Q?w16zKkTH46NXVVDqbVHa9VKQMq5T+a0B3iEejy7VC5aP1e/9BS+Oe5xLx111?= =?us-ascii?Q?cPrHgvcmLQVnFo8tXiG7bULpGe7M2P2RkAm7fus//WmJvm4qJ6c7Z2siQL1e?= =?us-ascii?Q?1U725zfw1ESCdHUXES5nWr0w2Hs3JaYbNFPhw+VI6YCU7j5VMwLrz5oKH6sP?= =?us-ascii?Q?F3/PFGVKTvJgTTAXIqKm1s8/9Xf1Oc763wJN0TPSZV17zsEVEGGDZ3AdbAtP?= =?us-ascii?Q?w8Lc0v0OrApI+aw0Tp5LWB0Q8GSS7HKd0HCkcFAeSTYUtuyvfaJ84wJ06C7S?= =?us-ascii?Q?hKvma+P1UXkVm4x5rih2ICxSnL3HNDxQ09s8Me6YV+vs88/HDMZ+6YYnbq0N?= =?us-ascii?Q?RRFs8Bc9Gi46DkdVCVCynJ1jg4/Nvb1yscV2DunTT35jAZ9uxSkEfsUAdZ6R?= =?us-ascii?Q?wZ569BmLsXGPwr5lKCPtjakk4ZSvLy1Q6zMEbvWeh6aPWpmP+S3wadK1kuLG?= =?us-ascii?Q?BdTH03COvB90tAh4RBEIMmOhZY7kOh2nBXPjCAFCwZ0bMTqx168PFVGD2+qu?= =?us-ascii?Q?bNHLFNfl0kt4B8MmWimH+KeKs0nGslM10E8NNJw5mBFL+2y/qH7kFDE5OYDr?= =?us-ascii?Q?roA/yRrBQV5YZyzBUkk5GjV14ZNTCg8QP0b213xSJzh52VDjhAosxwsOsrks?= =?us-ascii?Q?daDkPS+M9kil48EtAf1FnVFmjjqiOwwPUsPqM6dXAjvdxnSNXrRM7UbSGrcY?= =?us-ascii?Q?cRDnzYYLAI0FWYh/h1EfOG9SK3jfGtEMMgPrA5xLBMTdXeeGi5XvFbN7F+CW?= =?us-ascii?Q?/yrSiLTIO0jBmCUVppLHZrVL1+lFrmcItuD60UfgqxYk+VrPfbLUEz/jHWhk?= =?us-ascii?Q?sUv8p0jXXVgmS79L1XRgZD3dWwFuknXDejr+lO1P4xBCjc321SfMweDkl/Jx?= =?us-ascii?Q?r+ZTprbEP70nKMg82dbSNd0BdcpDKaxyoXctP3pZ/OUX4a2GXmRpetadxUqs?= =?us-ascii?Q?gvasHn10u15nZfbHN7I3qCtiiw6djMuhoQ+9a5vHzQuGQOQjiH6xhL6hAJ8X?= =?us-ascii?Q?rAGpvvOl487DfhGgXLu9w2w3RyK0lutLk9o/583vouRf9FPzj5om4bn9WC1j?= =?us-ascii?Q?GiMk9CkVYzzl+MsQ12YK4jwVmI6gsK4aa1bLnnHpqt76Qt/5EUGwjfTIbt/l?= =?us-ascii?Q?fnOjdJbcw1D961PqpMKORxGBz1i2O320bUh0SfYzfGN1xbEpNPBYCEc1COgO?= =?us-ascii?Q?6ck6m+MSD5eZnc3I/oab/8CxWkfOTXbbJOHmot9Ihvh5DacTzfXrCNf7w3Xk?= =?us-ascii?Q?jAHkgdvo652QTBm0HOAxQ8EE82HK4VJneE82W9cul4u1RCGCJ8z9viKTrSnw?= =?us-ascii?Q?WLSGsvOp6cJK4W2l4HLWqaFVOLTkn0IJhWmjfKb65OS1kHWuJnVgHev9e9iQ?= =?us-ascii?Q?UeEY+bCvoijlIBBx7Eshm+hw+ZhAvoJJkHNzbfKelFfZ4JzKaTpU1uQru1s4?= =?us-ascii?Q?f/UyiFLAnOSGOy4sMYT9M2S5TIsxkZVZCdpXcLzK2KX5cnPtPJ+LwlP4f/3D?= =?us-ascii?Q?FeVsQ0nAp0RN2N5j8RfBKdsCfFLU1PetEoOVaym1AzJ/DN8xo1Mx8+TrEB9h?= =?us-ascii?Q?cEUa2Q=3D=3D?= X-OriginatorOrg: corigine.com X-MS-Exchange-CrossTenant-Network-Message-Id: f01c4098-7aae-45fb-7db5-08db232c51b5 X-MS-Exchange-CrossTenant-AuthSource: PH0PR13MB4842.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Mar 2023 19:02:26.1626 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: fe128f2c-073b-4c20-818e-7246a585940c X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: uJW9r2YaiFmudA0XH8PrbCGHK4eJAaqmSxPa6cen7R9w18mFa5MQ98mSo4YpxidkvmUQRI9fPuhULL0YI/2pkP/oRpCSriZ7v+K3KsnznHg= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR13MB4419 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Mar 11, 2023 at 11:17:56PM +0800, Jason Xing wrote: > From: Jason Xing > > Sometimes we need to know which one of backlog queue can be exactly > long enough to cause some latency when debugging this part is needed. > Thus, we can then separate the display of both. > > Signed-off-by: Jason Xing > --- > net/core/net-procfs.c | 17 ++++++++++++----- > 1 file changed, 12 insertions(+), 5 deletions(-) > > diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c > index 1ec23bf8b05c..97a304e1957a 100644 > --- a/net/core/net-procfs.c > +++ b/net/core/net-procfs.c > @@ -115,10 +115,14 @@ static int dev_seq_show(struct seq_file *seq, void *v) > return 0; > } > > -static u32 softnet_backlog_len(struct softnet_data *sd) > +static u32 softnet_input_pkt_queue_len(struct softnet_data *sd) > { > - return skb_queue_len_lockless(&sd->input_pkt_queue) + > - skb_queue_len_lockless(&sd->process_queue); > + return skb_queue_len_lockless(&sd->input_pkt_queue); > +} > + > +static u32 softnet_process_queue_len(struct softnet_data *sd) > +{ > + return skb_queue_len_lockless(&sd->process_queue); > } > > static struct softnet_data *softnet_get_online(loff_t *pos) > @@ -169,12 +173,15 @@ static int softnet_seq_show(struct seq_file *seq, void *v) > * mapping the data a specific CPU > */ > seq_printf(seq, > - "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n", > + "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x " > + "%08x %08x\n", > sd->processed, sd->dropped, sd->time_squeeze, 0, > 0, 0, 0, 0, /* was fastroute */ > 0, /* was cpu_collision */ > sd->received_rps, flow_limit_count, > - softnet_backlog_len(sd), (int)seq->index); > + 0, /* was len of two backlog queues */ > + (int)seq->index, nit: I think you could avoid this cast by using %llx as the format specifier. > + softnet_input_pkt_queue_len(sd), softnet_process_queue_len(sd)); > return 0; > } > > -- > 2.37.3 >