X-Spam-Check-By: sourceware.org Message-ID: Date: Thu, 7 Jun 2007 13:41:44 -0400 From: "Lev Bishop" To: cygwin@cygwin.com Subject: Re: [ANNOUNCEMENT] New package: brltty 3.8 In-Reply-To: <20070607164933.GF4110@implementation> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline References: <20070606085100.GA5082@implementation> <4666819A.52A6488D@dessent.net> <20070606192445.GG6500@implementation> <20070606201111.GA2366@ednor.casa1.cgf.cx> <20070607114950.GA3958@implementation> <20070607122642.GA31803@trixie.casa.cgf.cx> <20070607160859.GA3577@implementation> <20070607163744.GA4972@ednor.casa1.cgf.cx> <20070607164933.GF4110@implementation> Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id l57Hg32x019029 On 6/7/07, Samuel Thibault wrote: > Christopher Faylor, le Thu 07 Jun 2007 12:37:44 -0400, a écrit : > > On Fri, Jun 08, 2007 at 12:08:59AM +0800, Samuel Thibault wrote: > > >To the best of my knowledge, there is no "unixish" way in cygwin > > >to access these pipes, so we just used CreateNamedPipe(). > > > > So don't use named pipes. > > What instead? Just TCP/IP? (it's quite sluggish). Maybe TCP/IP is not the most efficient way to send data to the local machine, but nevertheless, we're talking about sending (braille) text here aren't we? A cygwin loopback ttcp connexion on my laptop gets... bash-3.2$ ttcp -fM -sr & ttcp -fM -n80000 -st 127.0.0.1 [1] 3000 ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp ttcp-r: socket ttcp-t: buflen=8192, nbuf=80000, align=16384/0, port=5001 tcp -> 127.0.0.1 ttcp-t: socket ttcp-r: accept from 127.0.0.1 ttcp-t: connect ttcp-t: 655360000 bytes in 8.00 real seconds = 78.12 MB/sec +++ ttcp-t: 80000 I/O calls, msec/call = 0.10, calls/sec = 10000.00 ttcp-t: 0.6user 5.6sys 0:08real 78% ttcp-r: 655360000 bytes in 8.00 real seconds = 78.12 MB/sec +++ ttcp-r: 86662 I/O calls, msec/call = 0.09, calls/sec = 10832.75 ttcp-r: 0.8user 3.1sys 0:08real 49% bash-3.2$ [1]+ Done ttcp -fM -sr ...around 80MByte/sec, which maybe isn't as fast as it could be using native functionality, but surely brltty doesn't need *that* much bandwidth for transferring text? Lev -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/