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Date:      Fri, 9 Aug 2002 13:25:05 +0200 (CEST)
From:      Attila Nagy <bra@fsn.hu>
To:        Mike Barcroft <mike@FreeBSD.org>
Cc:        Yar Tikhiy <yar@FreeBSD.org>, <cvs-committers@FreeBSD.org>, <cvs-all@FreeBSD.org>
Subject:   Re: cvs commit: src/libexec/ftpd ftpd.8 ftpd.c
Message-ID:  <Pine.LNX.4.44.0208091313140.4115-100000@scribble.fsn.hu>
In-Reply-To: <20020809013552.B94821@espresso.q9media.com>
References:  <200208081753.g78Hrq0X078614@freefall.freebsd.org> <20020809013552.B94821@espresso.q9media.com>

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Hello,

> Are these changes making it back to lukem to avoid lost functionality
> when we make the switch to lukemftpd?
I think before the switch could happen it is necessary to bring lukemftpd
at least for the same level of performance as the current ftpd.
Two examples: sendfile() support and resource usage. And I think they are
really important...

sendfile(): I did "performance measurements" with four machines. One NFS
	server (held the data), one FTP server (data over NFS) and two
	machines with some wget -O /dev/null ftp://server/bigfile running.
	With ftpd I got about 8 MB/s with 10-20% idle processor time,
	with lukemftpd I got about 4-5 MB/s with 0% idle...
resource usage: without any hacks made, I could do about 750 concurrent
	ftp connection to ftpd (started from inetd) without any hicks
	and only about 200-270 to lukemftpd (I can't remember the exact
	number) with some weird kernel messages.

So it seems that currently, lukemftpd needs some work to be able to do
massive FTP services...

Just my opinion.

--------[ Free Software ISOs - ftp://ftp.fsn.hu/pub/CDROM-Images/ ]-------
Attila Nagy					e-mail: Attila.Nagy@fsn.hu
Free Software Network (FSN.HU)		  phone @work: +361 210 1415 (194)
						cell.: +3630 306 6758


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