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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDD3EC433B4 for ; Tue, 18 May 2021 17:57:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B051D601FE for ; Tue, 18 May 2021 17:57:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344423AbhERR67 (ORCPT ); Tue, 18 May 2021 13:58:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240327AbhERR66 (ORCPT ); Tue, 18 May 2021 13:58:58 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C977C061573 for ; Tue, 18 May 2021 10:57:39 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id gb21-20020a17090b0615b029015d1a863a91so2000424pjb.2 for ; Tue, 18 May 2021 10:57:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:subject:message-id:mime-version :content-transfer-encoding; bh=oxaauVHhw5lY1FoxZJi1j49Hg+WpaUu0CMw+4TZkq0Y=; b=YxbZwuoVQ2BxxrK0fv3JUeQvK2mMnQFXSDOVmGs36pD794tgbdLr0w+XpkbjKs/pLj E1cMAahDY2IZS2nUMnubrUrTEnGc6u+yrtSpZGLAzXUx7sdaTdXR1R9I8iHqkwp0Uc6P B8C/3c3yctP8qkKWpAa1vnMrV1F3+jJNrv7piPbkJD46W3hRKA6DUBSf2ea3Hw3Ofs+g 6x0NO5qtbYCAmu8tz56ENxM2+IiWwe8tG0Hb/Rp4fX27zNJ7CXXQWoCRM0+vOGWjDWq1 QEWxpKHlecbr3zw2rGdOea+Lz8WUhX82Yl0WC4sG5eqRKOGpRr3SzGzdazerAcz4/x9d dXpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-transfer-encoding; bh=oxaauVHhw5lY1FoxZJi1j49Hg+WpaUu0CMw+4TZkq0Y=; b=A4G3ll9AFLUTMlQeY94P2Q06P2buSwN5CaUkWb0dSYESr/QqPyvXXNRJr0NVTOQV25 AAllxe3ZS35FwPDE2TGJ0lbPmZuCoWG5afN1XcrSbBG6nYrWfHKsuX39zn3RIPWqUczx YlJee7cC20Au49uUzX6Dn2is1jY4AuMui3oL2Qsra985wMg27Bw3MngKvTkutIgGBYxo sGyMzvy2KBPkeluwfIbrFCv8Jc0ycGNRmNw0KIL4fsQ3iiVgg5cxIV19shek1x6T6Vfq vqHsCGomYAmG4Sk8rBpJJ38mz7EMPhW5Zf7RfZi3zi40nkFByQZu0SGnsvPjpSkKLb54 WA3Q== X-Gm-Message-State: AOAM532Yv6iqQq35lsFCq7spl0/E3+7Ve/CNsclGwfYoITStIZm0HBZN oElZolDxNI9cWOVKyRaca3JJvmx41XGj3w== X-Google-Smtp-Source: ABdhPJy+GuF1H579pSKix9Iz5A9ZDpo1JI/7Qo582RKSWY/5NINyAV2Uh1qRJfi1vmwZZBkSTMUEsg== X-Received: by 2002:a17:90a:dac1:: with SMTP id g1mr6292025pjx.199.1621360658969; Tue, 18 May 2021 10:57:38 -0700 (PDT) Received: from hermes.local (76-14-218-44.or.wavecable.com. [76.14.218.44]) by smtp.gmail.com with ESMTPSA id d13sm12215710pfn.136.2021.05.18.10.57.38 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 May 2021 10:57:38 -0700 (PDT) Date: Tue, 18 May 2021 10:57:35 -0700 From: Stephen Hemminger To: netdev@vger.kernel.org Subject: Fw: [Bug 213123] New: The performance deteriorates because the ip_victor function is deleted. Message-ID: <20210518105735.4f4f7eeb@hermes.local> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Begin forwarded message: Date: Tue, 18 May 2021 07:31:29 +0000 From: bugzilla-daemon@bugzilla.kernel.org To: stephen@networkplumber.org Subject: [Bug 213123] New: The performance deteriorates because the ip_victor function is deleted. https://bugzilla.kernel.org/show_bug.cgi?id=213123 Bug ID: 213123 Summary: The performance deteriorates because the ip_victor function is deleted. Product: Networking Version: 2.5 Kernel Version: 4.19.90 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: IPV4 Assignee: stephen@networkplumber.org Reporter: kircherlike@outlook.com Regression: No In the 4.19 kernel, we see that there is this commit https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net/ipv4/ip_fragment.c?id=86e93e470cadedda9181a2bd9aee1d9d2e5e9c0f Before the integration, the ip_victor function is used to release the old fragmented data when the fragmented IP data occupies the fragmented buffer. However, in the same scenario, the kernel of 4.19 discards all subsequent data until the 30-second buffer wait time set by ipfrag_time expires. After this, subsequent fragmented data is received. -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.