Re: Slow ACK'ing

Article View: borland.public.cppbuilder.internet.socket

Article #1847

Back to borland.public.cppbuilder.internet.socket Previous Next

#1847

From: Bob Gonder
Date: Wed, 11 Oct 2006 14:24

25 lines
1923 bytes

Josh Arnold wrote:

>My new problem is that when ACK'ing back to the server after receiving the
>data, the ACK is taking around 200ms.  Completely unacceptable for the
>application and I'm obviously doing something wrong.

I'll repost my repost from 1/17/2006

See my message from 5/4/2005
50th71db9qmpnog2gldkeqvsfv112h3ano@4ax.com

Subject: Re: sendto to same destination more times after eachother
fails.?

TCP buffers data so the data-to-packetheader ratio is sane. When
sending a single integer, the packet is several times the size of the
data, quite wastefull, so by default, TCP holds onto the data for a
period of time, hoping more data will be sent.
If you don't want to wait for the timeout, you need to tell TCP not to
wait.

Look into this WinSock API command, and parameters..

setsockopt(ClientOutSocket,IPPROTO_TCP,TCP_NODELAY,(char*)&t,sizeof(t));

Technical Details

Message-ID: <0hvpi29knbm09uif8ncifnmcuihfr6ttsa@4ax.com>

Path:

arc1-ca.pugleaf.net!g2news2.google.com!news4.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wn12feed!worldnet.att.net!208.48.142.85!newsfeed.news2me.com!newsfeed.media.kyoto-u.ac.jp!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail

References: <452cea31$1@newsgroups.borland.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: 11508e,74648bce769a50c7
X-Google-Attributes: gid11508e,public
X-Google-Language: ENGLISH,ASCII-7-bit
From: Bob Gonder <notbg@notmindspring.invalid>
Newsgroups: borland.public.cppbuilder.internet.socket
Subject: Re: Slow ACK'ing
Date: Wed, 11 Oct 2006 07:24:47 -0700
Organization: MindSpring Enterprises, Inc.
Reply-To: notbg@notmindspring.invalid
Message-ID: <0hvpi29knbm09uif8ncifnmcuihfr6ttsa@4ax.com>
References: <452cea31$1@newsgroups.borland.com>
X-Newsreader: Forte Agent 1.93/32.576 English (American)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
NNTP-Posting-Host: 69.69.90.106
X-Trace: newsgroups.borland.com 1160576685 69.69.90.106 (11 Oct 2006 07:24:45 -0700)
Lines: 28
Path: arc1-ca.pugleaf.net!g2news2.google.com!news4.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wn12feed!worldnet.att.net!208.48.142.85!newsfeed.news2me.com!newsfeed.media.kyoto-u.ac.jp!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail

Reply to Parent Message