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Xref: sserve comp.os.linux.networking:10217 comp.os.ms-windows.networking.tcp-ip:12983 comp.unix.bsd.freebsd.misc:3661 Newsgroups: comp.os.linux.networking,comp.os.ms-windows.networking.tcp-ip,comp.unix.bsd.freebsd.misc Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!oleane!tank.news.pipex.net!pipex!swrinde!elroy.jpl.nasa.gov!lll-winken.llnl.gov!fnnews.fnal.gov!gw1.att.com!nntpa!not-for-mail From: dyson@inuxs.inh.att.com (John S. Dyson) Subject: Re: Internet service providing-which OS? Message-ID: <DC2p8M.Fx0@nntpa.cb.att.com> Sender: news@nntpa.cb.att.com (Netnews Administration) Nntp-Posting-Host: inuxs.inh.att.com Organization: AT&T References: <3ue5qa$ain@panix.com> <3ufi7b$ju6@dingo.cc.uq.oz.au> <3ukbb9$7ao@gate.sinica.edu.tw> <3uo1mt$5uv@picard.cistron.nl> Date: Fri, 21 Jul 1995 15:48:21 GMT Lines: 40 In article <3uo1mt$5uv@picard.cistron.nl>, Miquel van Smoorenburg <miquels@cistron.nl> wrote: >In article <3ukbb9$7ao@gate.sinica.edu.tw>, > <ywliu@beta.wsl.sinica.edu.tw> wrote: >> >>As for FreeBSD, we all know it works pretty amazingly on ftp.cdrom.com. >>I have my own FTP server story about Linux 0.99plxx. See my other post. > >ftp.cica.indiana.edu, one of the busiest sites on the net (max 256 anon >ftp users) runs linux 1.2.10... > That is all and good... I'll have to check it on my T1 connected system. On ftp.freebsd.org I can still get 50-150K per second with 250+ other connected users when I am on a T1. Also, the only limitation is memory at this time -- the mirror scripts grow very large (80MB of RAM). It would be interesting to know the volume of traffic on ftp.cica.indiana.edu. I have heard that ftp.freebsd.org seldom drops below 400K bytes/sec., and the peak usage is at/near the theoretical maximum for their connection type and packet sizes. BTW, I just did an ftp at ftp.freebsd.org and got 138K/sec with 296 other users logged in. On ftp.cica.indiana.edu, I got between 99K/sec and 120K/sec with a current limit of 75 users. So it looks good, but it appears that the system login limit on cica is set very low. (ftp.freebsd.org works OK (but not great) on a T1 with approx 100+ users). We have found that there is a big difference in machine loading, etc when going from a T1 to a T3. A machine that works well on a small pipe can fall flat on a bigger one. So I still think that my view of what Linux can do under a real load is inconclusive. The test of the mettle of an OS is what it can do under real stress. If it isn't paging -- it isn't being stressed much. Many strange race conditions can start to appear. Disclaimer: Most of what I am saying about ftp.freebsd.org is heresay -- I do not manage it, but I know the people that do and it appears to be able to really take the load... John (FreeBSD core) dyson@root.com