From owner-freebsd-current@freebsd.org Sun Jan 7 04:20:58 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 52BE6E65BB4 for ; Sun, 7 Jan 2018 04:20:58 +0000 (UTC) (envelope-from gurenchan@gmail.com) Received: from mail-io0-x22e.google.com (mail-io0-x22e.google.com [IPv6:2607:f8b0:4001:c06::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 302417496C for ; Sun, 7 Jan 2018 04:20:57 +0000 (UTC) (envelope-from gurenchan@gmail.com) Received: by mail-io0-x22e.google.com with SMTP id k18so9720849ioc.11 for ; Sat, 06 Jan 2018 20:20:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=XlzE+/54OEb50f1ZDZkK7rXBX+JXT6QUtg7AER6EnRk=; b=tzyQFMmG5TT1JmJ0wxhcLKr9uH56jfjFUZ0T2NvZavx5ViZmVAheksPnucWQmnsXZn VAJNWbN5n+uY6NkUcVn9wsbgROkWAQwowTXTqX1lp52e5HESCEUOlfXpBP1bVExKqCvs CowTRvFu0cvD3rZU6DhTYa79x79TZGk1MgPsdmVgm/eFWK4F5vvs8VWUPithbyYEQxHE K422GyrOf5Q6HA7DOjfxfGIeC+BjZN8272qZYPlUumzF4Xy3CFuKByezQDwh86yyOhjN TvZA2hx2TMdN8EHOJ5fPANOAyK0vWpQHPZ7L/wfagfmh3U+LWqlPo7tOnARcFiKG/9T6 eOeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=XlzE+/54OEb50f1ZDZkK7rXBX+JXT6QUtg7AER6EnRk=; b=MUgHE5SavC0sZeZjaWudeK7OI9Y1Yv7VRKysma3Klhdoi2Ex+CU79/wZ1lOEQIdn5j jGhnGXgq2OvhQ4keyhmmMLvaB5fXeZL8ZDMrY6RCxlVYKsSH2jGrA+IzcjbBxC8YQS7h wR5JpMkEoPSCrC/KxpOP3F3y8n4IDFbxzuk6as+PRnQ8O6vpveodDglM3uxjpuNTtlmJ Pn5Jreobj/j700PV12LgM+yuDZcA2L62kOqz7SZ4TQhOTChcvMs8qyNRsD9thgq20G9n V6k+1HEC1bodZIsk9TLyPRxvuTw9db5PrNH4rHmv3lKonVDQEy95qSK/yrTiPQfKDOL5 UfIg== X-Gm-Message-State: AKGB3mKh263pq5RakKKJoDuLG19KMRyNz7GHSRWe8Erlp0FrGjt/FddX Wj/E1ZKzxTyMkD1T49XfQy6GrDsC1zErwe8I3aQ= X-Google-Smtp-Source: ACJfBousAc4GrPJZqesWBMJbv+CU0jXSrUmhtx879XSGKvwVlb6xqTeeebEgnnWsojYyPidVo9JOF49B3zu3i+X5QDg= X-Received: by 10.107.34.147 with SMTP id i141mr7695553ioi.184.1515298856500; Sat, 06 Jan 2018 20:20:56 -0800 (PST) MIME-Version: 1.0 Received: by 10.107.164.203 with HTTP; Sat, 6 Jan 2018 20:20:56 -0800 (PST) In-Reply-To: References: <1FD1FE97-D25C-4BAC-A3E0-F22509FB0C2B@dons.net.au> <6A4FF1B9-D98B-4E73-9E3E-E951749E0C21@dons.net.au> <20180104092349.2821f9f9@ernst.home> <18F01F2F-8907-4CF8-A80A-B6B5C16593B7@dons.net.au> From: blubee blubeeme Date: Sun, 7 Jan 2018 12:20:56 +0800 Message-ID: Subject: Re: USB stack To: Warner Losh Cc: "O'Connor, Daniel" , gljennjohn@gmail.com, FreeBSD current Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Jan 2018 04:20:58 -0000 On Sun, Jan 7, 2018 at 12:17 PM, Warner Losh wrote: > > > On Sat, Jan 6, 2018 at 9:08 PM, blubee blubeeme > wrote: > >> On Sun, Jan 7, 2018 at 11:56 AM, blubee blubeeme >> wrote: >> >> > I ask does FreeBSD usb stack actually implements USB spec 2.0 or great= er >> > and the topic gets derailed...? >> > >> > Are you guys saying that 7-8MB/s is USB speeds? >> > >> > On Thu, Jan 4, 2018 at 6:44 PM, O'Connor, Daniel >> > wrote: >> > >> >> >> >> >> >> > On 4 Jan 2018, at 09:23, Gary Jennejohn >> wrote: >> >> >> What is an "LG v30"? >> >> >> >> >> > It's a smartphone from LG and only supports USB2 speed. The report= ed >> >> > transfer rate is no big surprise. >> >> >> >> OK thanks. >> >> >> >> -- >> >> Daniel O'Connor >> >> "The nice thing about standards is that there >> >> are so many of them to choose from." >> >> -- Andrew Tanenbaum >> >> GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C >> >> >> >> >> > Actually, this post: https://forums.freebsd.org/threads/41041/ >> >> on the forum from 2013 pretty well describes what I am experiencing when >> moving data over USB. >> >> I have no problems hitting very high read/ write speeds using dd or >> downloading something but copying by USB is excruciatingly slow. >> >> Why is that? > > > If you are copying a boatload of tiny files to USB there's two issues. > Both our UFS and MSDOS don't do well in this case. Second, for flash base= d > USB thumbdrives, most of them have horrible write performance unless you > buy quality drives... > > Warner > I would consider this=EF=BC=9A https://www.samsung.com/us/computing/memory-storage/memory-cards/micro-sd-e= vo-256gb-memory-card-w-adapter-mb-mc256da-am/ 256GB Samsung microsd card quality.