X-Recipient: archive-cygwin@delorie.com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:reply-to:message-id:to:subject :in-reply-to:references:mime-version:content-type :content-transfer-encoding; q=dns; s=default; b=S4sqDQs5Yucd3EOZ vsIlP03op2vLfVBtjLyhRpuFkeZI3jH+6aQHevgP/Cmqe3ihAtcAAn3ApBZr5nrB wEwU7w7eKKR3upP+NEqeH8nxkv4/361KvJtyTfKy5O6AUeTxnlbjDCbBhyL8GpN8 bPpECi+N/mez4JknWIGbOPh4tVo= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:reply-to:message-id:to:subject :in-reply-to:references:mime-version:content-type :content-transfer-encoding; s=default; bh=tITuihbkv8Pxk3XRnU3zU9 3t2ys=; b=LE5pbKKrKxeTJZgLOmvqGIWhxIqp+CnQ3P+fc7TRbyOYOxOiGECNXh GKgYWTC18i23bZ390Wy0pbSBZF1w6Or/+k8mSk4OgrJ72FZrZByN2zmIogySgh95 +LNGIEw+3kzLPN37bI/1Uq/vMtfvwW+F61CwpYELYRlCdXlVLkl2Q= Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=2.0 required=5.0 tests=BAYES_50,FREEMAIL_FROM,KAM_THEBAT,MIME_BASE64_BLANKS,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=no version=3.3.2 spammy=H*UA:Bat!, H*x:Bat!, H*x:Home, H*UA:Home X-HELO: forward5j.cmail.yandex.net Authentication-Results: smtp11.mail.yandex.net; dkim=pass header.i=@yandex.ru X-Yandex-Suid-Status: 1 0,1 0 Date: Wed, 22 Jun 2016 02:12:01 +0300 From: Andrey Repin Reply-To: cygwin@cygwin.com Message-ID: <304322535.20160622021201@yandex.ru> To: Warren Young , cygwin@cygwin.com Subject: Re: Piping on 64-bit Cygwin, STC found In-Reply-To: <7365C9D7-91DF-491F-A979-A3B7291CFC99@etr-usa.com> References: <1989991589.1040675.1465521483978.JavaMail.yahoo.ref@mail.yahoo.com> <1989991589.1040675.1465521483978.JavaMail.yahoo@mail.yahoo.com> <6ecc2a84-449f-01f1-0ef7-440e97a9b850@dronecode.org.uk> <1341561944.11163115.1466484828091.JavaMail.yahoo@mail.yahoo.com> <7E3D11F0-CD6B-4AF4-991B-2C3AD0E08D07@etr-usa.com> <7365C9D7-91DF-491F-A979-A3B7291CFC99@etr-usa.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 X-IsSubscribed: yes Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id u5LNKxtR031201 Greetings, Warren Young! > I used 64k and 64M (capitalization is important to dd), You aren't confusing DD with some other tool? $ dd if=/dev/urandom of=/dev/null bs=64K count=1 1+0 records in 1+0 records out 65536 bytes (66 kB, 64 KiB) copied, 0,0183668 s, 3,6 MB/s $ dd if=/dev/urandom of=/dev/null bs=64k count=1 1+0 records in 1+0 records out 65536 bytes (66 kB, 64 KiB) copied, 0,00557431 s, 11,8 MB/s $ dd if=/dev/urandom of=/dev/null bs=64kb count=1 dd: invalid number: ‘64kb’ $ dd if=/dev/urandom of=/dev/null bs=64kB count=1 1+0 records in 1+0 records out 64000 bytes (64 kB, 62 KiB) copied, 0,00562949 s, 11,4 MB/s $ dd if=/dev/urandom of=/dev/null bs=64KB count=1 1+0 records in 1+0 records out 64000 bytes (64 kB, 62 KiB) copied, 0,00685924 s, 9,3 MB/s $ dd --version dd (coreutils) 8.25 Packaged by Cygwin (8.25-3) -- With best regards, Andrey Repin Wednesday, June 22, 2016 02:08:29 Sorry for my terrible english...