Date: Tue, 4 Aug 2009 08:10:49 +0200 From: Andre Albsmeier <Andre.Albsmeier@siemens.com> To: Stephen Montgomery-Smith <stephen@missouri.edu> Cc: ctm-users@freebsd.org, Andre.Albsmeier@siemens.com Subject: Re: Do you still want CTM? Message-ID: <20090804061049.GB20414@curry.mchp.siemens.de> In-Reply-To: <4A77B32F.3040208@missouri.edu> References: <4A77A0EE.3060602@missouri.edu> <20090804031753.GP98247@pjdesk.au.alcatel-lucent.com> <4A77B32F.3040208@missouri.edu>
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On Mon, 03-Aug-2009 at 23:03:59 -0500, Stephen Montgomery-Smith wrote: > Peter Jeremy wrote: > > On 2009-Aug-03 21:46:06 -0500, Stephen Montgomery-Smith <stephen@missouri.edu> wrote: > >... > > ?????? I am doing a "du -s" right now, but the directory structure of > the complete cvs is pretty complicated, and it is taking a long time to > finish. For now, I am going to guess that it is perhaps a little less > than 10G. > > > - How resource intensive is building the deltas? If it's a dedicated > > box, what CPU/RAM does it have? > > I use my desktop, which is a fairly old DELL, 32 bit, 1G RAM, 2.6GHz. > But the big bottleneck is the hard drive. > > When CTM is running, it really uses the disk heavily, and I try to time > it to when I am not wanting to use the computer for regular activities > (like surfing the web). Each CTM run takes about 2 hours, and this > happens 3 times a day. I use fairly modern SATA drives, and that makes > a huge difference. Most of the time is spent updating cvs-cur. Maybe there is room for improvement by spreading the work over various disks intelligently. I don't know how the delta generation works but I think stuff has to be checked out and compared to the former version. So if one got three disks: 1. holding the cvs Repository 2. checked out version #1 3. checked out version #2 things might get a big boost. > > > - What are the bandwidth requirements? > > You need enough bandwidth to be able to cvsup 3 times a day, and so that > ftp-master can fetch the deltas. The big deltas are the > cvs-cur*xEmpty's, which are about 1G each in size, and new ones are > created about once per month. One could argue about the need of distributing cvs-cur and src-cur and stay with the -STABLE branches and -ports. But this is just my opinion and others' needs may be different ;-). Also, it might be enough to run the process only once a day. > > > - How are the deltas forwarded out to the mail and FTP servers? > > The deltas are mailed directly from my computer to the mailing lists, > using sendmail. How many people are there on the lists? This might also give an idea about the necessity supporting cvs-cur and src-cur. Chances are low, but, anyway, I will ask a friend who is well connected if we could arrange something... Thanks, -Andre > > The FTP servers get the deltas via ftp-master fetching them via rsync. > It does this about every 4 hours. > > _______________________________________________ > ctm-users@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/ctm-users > To unsubscribe, send any mail to "ctm-users-unsubscribe@freebsd.org" -- Failure is not an option -- it comes bundled with Windows.
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