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 2DBE1C433F5 for ; Fri, 25 Feb 2022 09:39:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239178AbiBYJju (ORCPT ); Fri, 25 Feb 2022 04:39:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233715AbiBYJju (ORCPT ); Fri, 25 Feb 2022 04:39:50 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9638F239304 for ; Fri, 25 Feb 2022 01:39:18 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5AC44B82D49 for ; Fri, 25 Feb 2022 09:39:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id EAD67C340E7 for ; Fri, 25 Feb 2022 09:39:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645781956; bh=wdF4HymfXoxJSiXP70U0DC70i0kxfDn1X5mjRYLmx04=; h=From:To:Subject:Date:In-Reply-To:References:From; b=rLAVMjcXHg9NQyWyuiYVXnXl/+/XiSHex3HkivUl1oIxvJ5GiymR+XX3xYo2nKZxn AmlN8/NXNdAiY8milswj9H0fb8yxvDpg/Gp7CAtdfin7un+jQD+IPvpXQRb5JoXyEl FO+EWfB3v+ejn9gFtRNFCFk9VS33zq4YlzK5x4QmVFloFFX42JLMYWE+b5eIBvBWam cvwT8CGxXKCrK4JicMc0OxzNkIpxkSRTg2oLGtaWsB16hkCPDNDwC1WIYiL02ThcY1 wHxHExtZ4JCW0yL+zHeeWbf/fMoWzN013ugirCmW5OAQPnPldumE6ZtTRaoiFshGI/ KdyhFToqvIDUg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id CCDDDC05FD2; Fri, 25 Feb 2022 09:39:15 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 215475] RMNET data connection speed would be reduced to about 80-100Mb/s from 150Mb/s if try to re-connect it Date: Fri, 25 Feb 2022 09:39:15 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: slark_xiao@163.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D215475 --- Comment #4 from slark_xiao@163.com --- Hi all, According to Qualcomm analysis, there is no issue on IPA side. They suspe= ct that USB is slow to drain is the Root Cause. We tried to enable QMAP to speed up from host side. Ping test is okay, but failed in iperf test under simulator network.=20 Do you have any good idea for further debugging? Thanks. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=