[Bf-committers] move prebuilt libs from svn to git?

Dan McGrath danmcgrath.ca at gmail.com
Fri Jun 17 14:20:01 CEST 2022

Hi Tom,

Long time no see :)

I did some tests from home and found that, aside from slow speeds, I was
able to checkout at least 5 or 6 gig of the bf-blender repo without error
or having to retransmit.

I took the liberty of packet capturing the stream from my PC's POV, and
placed them in the ftp download area[1], if you care to take a look.

The gist is that I was able to get around 5MB/sec for at least 5G of the
checkout, before I cancelled it.

Now, my IP is a bit of a special case, so I am wondering if you are just
hitting the server so hard with http requests in separate sockets, or
something extreme, that is causing the system to block you for a period of
time. For comparison, my PC only had about 4 sockets open to the server for
the transfer. I would be curious to know if you are doing pipelining, or
sending each request in a separate connection.

If you can, the next time it happens, see if you are unable to visit
Phabricator or resume the svn checkout process. It may not be a firewall
issue, but without seeing some packet captures, I wouldn't be able to
really guess. Ideally, try to capture a few packets, until failure. At the
very least, you will need to snap 20b+20b=40b for IP+TCP headers, but I
would suggest a tad higher, maybe 64b.



[1] - https://download.blender.org/ftp/dan/svn-checkout/

On Thu, Jun 16, 2022 at 2:43 PM Tom M via Bf-committers <
bf-committers at blender.org> wrote:

> When checking out the libraries from SVN following the directions on
> https://wiki.blender.org/wiki/Building_Blender/Windows
> The svn checkout of the libraries fails with significant frequency,
> if you google you might stumble across using make svnfix
> https://www.mail-archive.com/bf-blender-cvs@blender.org/msg151996.html
> Even after using it, I'm still having to do Ctrl C, and then make
> svnfix repeatedly (it downloads some files, than randomly freezes,
> sometimes after 20-50 files, sometimes after 100's of files).
> Git doesn't seem to have any problems, though.
> So might we consider migrating the libs to git, rather than using SVN?
> LetterRip
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Danny McGrath - danmcgrath.ca at gmail.com
GPG key: EDF6 AFF5 2086 F93A 1F59 36A5 44B6 26F3 6968 71CA

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