delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2012/10/02/20:56:00

X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE
X-Spam-Check-By: sourceware.org
X-Mail-Handler: Dyn Standard SMTP by Dyn
X-Report-Abuse-To: abuse AT dyndns DOT com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information)
X-MHO-User: U2FsdGVkX1/6mMA097HEfQtw1EbHVTNV
Date: Tue, 2 Oct 2012 20:55:40 -0400
From: Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [PATCH] Re: Fifo blocking and performance issues
Message-ID: <20121003005540.GA17560@ednor.casa.cgf.cx>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <2415374 DOT xBCzgxA7JH AT bob-kubuntu> <20121002201947 DOT GA5314 AT ednor DOT casa DOT cgf DOT cx> <506B5254 DOT 3060708 AT malth DOT us>
MIME-Version: 1.0
In-Reply-To: <506B5254.3060708@malth.us>
User-Agent: Mutt/1.5.20 (2009-06-14)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On Tue, Oct 02, 2012 at 01:45:08PM -0700, Gregory M. Turner wrote:
>On 10/2/2012 1:19 PM, Christopher Faylor wrote:
>> On Tue, Oct 02, 2012 at 03:15:37PM -0400, bob wrote:
>>> Any suggestions on how we can achieve a higher performance blocking read on a
>>> Cygwin RDWR fifo?
>>
>> As always, if you can provide test cases of bugs we will endeavor to fix problems.
>
>I didn't think the RDWR fifo's worked at all -- they certainly don't if 
>you create them via bash.

If you want to submit an assignment I'll be happy to look at the patch.
It is too big to be included without an assignment.  See:

http://cygwin.com/contrib.html

FYI, a quick scan seems to show that you've pretty much undone a lot of
what I've recently added for fifos so I don't expect to really be too
keen on applying the patch.  But, I don't want to spend too much time
inspecting a change which can't yet be applied.

cgf

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019