From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6F9D717AA8 for ; Tue, 9 May 2023 08:22:34 +0000 (UTC) Received: from mail-ej1-x629.google.com (mail-ej1-x629.google.com [IPv6:2a00:1450:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E13F9B4 for ; Tue, 9 May 2023 01:22:26 -0700 (PDT) Received: by mail-ej1-x629.google.com with SMTP id a640c23a62f3a-9661047f8b8so597992766b.0 for ; Tue, 09 May 2023 01:22:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683620545; x=1686212545; h=to:date:message-id:subject:mime-version:content-transfer-encoding :from:from:to:cc:subject:date:message-id:reply-to; bh=IASwr9LoMe+3O5jstjLyfRwwV6ZfMjZymt0sFmuMnW0=; b=o1SUkWGUXitCWnKDMEr2mKYzFQqUVFUGtKxqODrVJe03dR6TjFI7O9nq11TWpELE4o gjSdiYMAQD8lBiVzc0MAlGH/l3BXAlc8etYHSe4N2y9Z8+0CwW7Cbn3nDxNjgdY/nxA5 C3y7b0cDUR9/A4J19t33oT8QymvXL6lNzwodBMzh47Gmh9NEa1Aw0LvV6PsFgeLkzfeq g/cCJ9m+mCKQBu3FWtjfvpxxXN29CSJpUwYJq+TsN2vfnRLllbpQAG4e3WywbOeWs08H EexO/OzHcxsGOiIhVsV9TPqUAKeTXKtXAgDmYT5TanoninzdXib2vdZtZFfmyFwfN5tC GsYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683620545; x=1686212545; h=to:date:message-id:subject:mime-version:content-transfer-encoding :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=IASwr9LoMe+3O5jstjLyfRwwV6ZfMjZymt0sFmuMnW0=; b=hGRRyCbfMp1ffbbu97QtoeHbguJ1ZOdSDUd0AtqpN6ziZcrNUR7l+0gr2ngFYsiSya S+DZKnTWj2Ggtii4jLdNBS3F5rRl9EunliGpRWDyKRXI2Hn8Xt4LwZwXsb4qfrhi9/SF XeeG6p3o2rrAEPVj8lezsRD/PuSS4UUvsT3djbGpMkBYED3gZuAqTCFmHr321nbIXecd XN7E+15egXjHdO+42lXHMNr3KJcdOUTltpEAqdbk49WOEoOLZ+ddyCHYKID7NrlqwBLT 3OJmZXGfA3jnxThkboZ/x8CaStFRdmaERomx8SCP2yc+7D2W/xVRss0z4FjPdXWYMT+p 5GvA== X-Gm-Message-State: AC+VfDw/ytT75v2Txe/D6KAqSVbAxFfDE+N0+IijLFZoaimuhdpWzVkV oZ1cQkB5lKe3p09M0SZJp4I= X-Google-Smtp-Source: ACHHUZ4ZTSlqcxWNRPXotkm1JJ+sOWQtk9y5wv079ckJi5atZZWXWPqLM51JxHpdup1JHKBw99rg6w== X-Received: by 2002:a17:907:9405:b0:93b:5f2:36c with SMTP id dk5-20020a170907940500b0093b05f2036cmr11647431ejc.61.1683620545213; Tue, 09 May 2023 01:22:25 -0700 (PDT) Received: from smtpclient.apple ([178.254.237.20]) by smtp.gmail.com with ESMTPSA id ew18-20020a170907951200b009660e775691sm1021241ejc.151.2023.05.09.01.22.23 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 May 2023 01:22:24 -0700 (PDT) From: Martin Zaharinov Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.500.231\)) Subject: Very slow remove interface from kernel Message-Id: <371A6638-8D92-4891-8DF5-C0EA4FBC1977@gmail.com> Date: Tue, 9 May 2023 11:22:13 +0300 To: Eric Dumazet , netdev X-Mailer: Apple Mail (2.3731.500.231) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hi Eric=20 I think may be help for this : I try this on kernel 6.3.1=20 add vlans :=20 for i in $(seq 2 4094); do ip link add link eth1 name vlan$i type vlan = id $i; done for i in $(seq 2 4094); do ip link set dev vlan$i up; done and after that run :=20 for i in $(seq 2 4094); do ip link del link eth1 name vlan$i type vlan = id $i; done time for remove for this 4093 vlans is 5-10 min . Is there options to make fast this ? Same problem is when have 5-6k ppp interface kernel very slow unregister = device. best regards,=09 m.=