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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 A5950C43215 for ; Thu, 28 Nov 2019 11:40:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D9C421781 for ; Thu, 28 Nov 2019 11:40:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=unipv-it.20150623.gappssmtp.com header.i=@unipv-it.20150623.gappssmtp.com header.b="WExpWIl8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726885AbfK1LkS (ORCPT ); Thu, 28 Nov 2019 06:40:18 -0500 Received: from mail-wr1-f48.google.com ([209.85.221.48]:33205 "EHLO mail-wr1-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726401AbfK1LkR (ORCPT ); Thu, 28 Nov 2019 06:40:17 -0500 Received: by mail-wr1-f48.google.com with SMTP id b6so1067923wrq.0 for ; Thu, 28 Nov 2019 03:40:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unipv-it.20150623.gappssmtp.com; s=20150623; h=message-id:subject:from:to:cc:date:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=GcaV7TSgPi16GI1scwVAVOuBQ2pZxQwhgEx6hTrOkns=; b=WExpWIl8B8mTd7QDNWiNnXNoTCMETcR94FWgcoGbGKbcGVIEioeu6sorw0ZZwkEiCX JVeAuKrT4RA+TX/KomUnci2tzbFQLHobalFPZyYMN3wXLEKOFDJ+/iHE4StbMGKorpPp GLzuCcNiK18hAB8AOYGF3JxRuq4p+9DsyEz6Cn2VeC1l/p/R6mD6QiSsxJib9Bem3/2o jRV1/OJIRlnUp5pldlPZLRAMVLeHQ1nvx5P7UnXfjGv34mmXEKc7fi2Un6BQUQrIeboM HEsZieuixSP6Od0SKNAd7Z+AXyktouVnMwhQgWsu/aZSobFdEzKJT2qq80jXDDEJCYe2 zcIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=GcaV7TSgPi16GI1scwVAVOuBQ2pZxQwhgEx6hTrOkns=; b=jWz6KcfWGSglhOYdnYBtOkGq5geSuBvTiVISGKhROCpJmdMgXGxJBO1CdzrfnbBVDY 3YSx0uSAuF4PqwcOMmrJdq6v6b17jMf5tOnF7NU7nFVnci3aKf1bQZ1mwUCtRo5JkK/h EV8BBl5q6BgijzN6aqbYbUwpEhkbzgkyDauTHQdSzjRCSvrDBGH82FFzFkxgPEopxv71 Tpu8TR2F/mHcVSiMgKm4w8TCagdV5BdlGUmNTgwKQ3DiqdGtaj6S7w68i5E10SFYUUSZ 1Ig+hWuN5IEA8/CqKy6gi0g4DJ1tCyQEzWCtusiFIrGxAwxxqAAfivOj8Kx53+3Cs4Gf fVfA== X-Gm-Message-State: APjAAAWkx+KhPmiQEMeZi71Qyk8EXYaePu3lVszJPvpkkl6eydQZqM4k WJPjs4SALicpaiJUGwUCU37CJQ== X-Google-Smtp-Source: APXvYqzJoJ36WVXfKX0byebk+wUH2f5FUSX/9U7e2SD/NjLo+igkMeM0znDoPQjo8YplBf0zzGssHA== X-Received: by 2002:adf:fa08:: with SMTP id m8mr50371389wrr.276.1574941215165; Thu, 28 Nov 2019 03:40:15 -0800 (PST) Received: from angus.unipv.it (angus.unipv.it. [193.206.67.163]) by smtp.gmail.com with ESMTPSA id l7sm3963426wrq.61.2019.11.28.03.40.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Nov 2019 03:40:14 -0800 (PST) Message-ID: Subject: Re: AW: AW: Slow I/O on USB media after commit f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6 From: Andrea Vai To: "Schmid, Carsten" , Finn Thain Cc: Ming Lei , Damien Le Moal , Alan Stern , Jens Axboe , Johannes Thumshirn , USB list , SCSI development list , Himanshu Madhani , Hannes Reinecke , Omar Sandoval , "Martin K. Petersen" , Greg KH , Hans Holmberg , Kernel development list Date: Thu, 28 Nov 2019 12:40:11 +0100 In-Reply-To: References: <20191109222828.GA30568@ming.t460p> <20191123072726.GC25356@ming.t460p> <20191125035437.GA3806@ming.t460p> <20191125102928.GA20489@ming.t460p> <20191125151535.GA8044@ming.t460p> <0876e232feace900735ac90d27136288b54dafe1.camel@unipv.it> <20191126023253.GA24501@ming.t460p> <0598fe2754bf0717d81f7e72d3e9b3230c608cc6.camel@unipv.it> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.32.4 (3.32.4-1.fc30) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Il giorno gio, 28/11/2019 alle 08.12 +0000, Schmid, Carsten ha scritto: > > [...] > > I assume the only thing that you change between the benchmarks > is the kernel (and the modules, of course), right, Andrea? > It's my production machine, so apart from the changes involved in a "normal use of a PC" I can say that there are no changes I am aware of (apart from the kernel, and other changes you told me to do, such as changing the IO scheduler, etc)... but please remember I am not an expert, so feel free to ask me what other kind of changes I can tell you about. Thanks, Andrea