X-Recipient:	archive-cygwin AT delorie DOT com
X-Spam-Check-By:	sourceware.org
Message-ID:	<3ee066b40804292128l70e7a2b2w514fca0f6f92dba3@mail.gmail.com>
Date:	Wed, 30 Apr 2008 09:58:40 +0530
From:	"antony baxter" <antony DOT baxter AT gmail DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: inetutils 1.5 / ftpd problem: 426 Data connection: No buffer space available.
MIME-Version:	1.0
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.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

Charles,

> Unless somebody squawks loudly and soon, I'm going to release inetutils-1.5-4 using 4k buffers for ftpd send_data().

Squawk!

Unfortunately, with XP SP2, Cygwin 1.5 as the server machine, I get
pretty much the same symptoms with each of the above ftpds serving up
a 350mb file:

1. In all cases, the ftpd process' memory usage increases to ~350mb,
2. As the buffer value decreases, the process' cpu usage increases
(ftpd-1k.exe used about 75% of the cpu vs. about 10% for ftpd-8k.exe),
3. Performance jumped around (ftpd-1k transferred the file in
90seconds, ftpd-4k in 166 seconds, ftp-8k in 114 seconds on a wired
network)

Sorry!

Ant.

--
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/

- Raw text -