Date: Mon, 2 May 2005 08:49:30 -0700
From: "Randy.Dunlap" <rddunlap@osdl.org>
To: Valdis.Kletnieks@vt.edu
Cc: bunk@stusta.de, tomlins@cam.org, zwane@arm.linux.org.uk, akpm@osdl.org,
       linux-kernel@vger.kernel.org
Subject: Re: 2.6.12-rc3-mm1
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On Mon, 02 May 2005 11:28:05 -0400 Valdis.Kletnieks@vt.edu wrote:

| On Sun, 01 May 2005 15:30:40 +0200, Adrian Bunk said:
| 
| > How much bandwith does this require?
| > 
| > Currently, 2.6.12-rc3-mm1 requires 3.7 MB for the -rc3 patch (which can 
| > be used for several -mm patches) plus 2.6 MB for the -mm patch.
| > 
| > The 47 MB download for 2.6.11 are required only once for the many -mm 
| > kernels between 2.6.11 and 2.6.12.
| > 
| > Looking at these numbers, the average download required for every -mm 
| > kernel is currently far below 10 MB.
| 
| And even *more* importantly, note that when downloading a -mm or -rc3 patch,
| there's minimal server overhead - it opens *one* file and streams it to the
| FTP connection.  sendfile() anybody? ;)
| 
| How many open/close/etc are needed to sync up 2 'git' mirrors?  I don't care *how*
| stupendous git/mercurial/whatever are, they're going to have a *really* hard time
| getting down to the overhead of an FTP session sending a .bz2 file.
| 
| Unless of course, there's only me and a dozen other people even *trying* -mm
| kernels and the distinction is lost in the noise... (Out of curiosity, how
| many downloads *DO* the -mm kernels get?  I know Linus and Andrew want more
| testing.. let's keep that in mind here.. ;)

Last I heard, Andrew had access to kernel.org transfer logs,
but the problem is that we can't tell anything about the download
counts from mirrors.

---
~Randy
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