[Systems] Wiki speed (was Re: Wiki account creation OpenID Problem)

[Sam P.]

Hi All,

I just saw that the docker container on freedom that does the
magical-wiki-visual-editor-node-js-service was not running, so that was why
only the edit source thing was working :)

IDK what happened there - did somebody restart docker on freedom?  or
restart freedom?  all of the containers were down :(

So about the visual editor, here were my tests on wiki-devel (running "time
curl http://wiki-devel.sugarlabs.org/go/Welcome_to_the_Sugar_Labs_wiki >
/dev/null" on sunjammer):

* ~2sec average time with visual editor and all the others
* ~1.5sec without visual editor => probs a bit of network cost, but not the
whole thing
* ~1.7sec without mobile front end (but with VE and all the others)
* ~2sec without the media viewer lightbox (but with VE and all the others)

Don't trust my test results, but  it would probably help a little to move
VE together with the rest of the wiki.

It would be pretty cool to containerize or chuck the wiki in a new VM.
That would make it eaiser to move the VE thing onto the same machine.
Moving it onto a newer OS could also let us play with HHVM, which seems to
work nicely with media wiki [1][2].

Thanks,
Sam

[1]  Nice CPU Usage graph!  http://hhvm.com/blog/7205/wikipedia-on-hhvm
[2]  "How we made editing Wikipedia twice as fast"
https://blog.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/

On Mon, Jun 22, 2015 at 5:39 PM Bernie Innocenti <bernie at codewiz.org> wrote:

> On 22/06/15 02:01, Sam P. wrote:
> > Hi Bernie,
> >
> > Maybe it is the VisualEditor?  It needs to connect to a nodejs service
> > on freedom (sunjammer is too old to do nodejs).  I would think that it
> > would only need the service when visually editing, but who knows.
>
> Likely!
>
> I'd say this gives us one more good reason to move the wiki to a new VM.
>
> > Thanks,
> > Sam
> >
> >
> > On Mon, 22 Jun 2015 2:44 pm Bernie Innocenti <bernie at codewiz.org
> > <mailto:bernie at codewiz.org>> wrote:
> >
> >     The wiki takes 3 seconds to render a page even from localhost.
> >
> >     During this time, there's some cpu usage from apache, but not 100%,
> >     suggesting that php is doing either disk I/O or network I/O. Hmmm...
> >
> >     Sebastian: wiki-devel is also slow. Try disabling one extension at a
> >     time until you find the culprit.
> >
> >     On 21/06/15 23:21, James Cameron wrote:
> >      > On Sun, Jun 21, 2015 at 09:52:08PM -0500, Sebastian Silva wrote:
> >      >> By the way we've been on a slow link for some time and have felt
> the
> >      >> wiki is painfully slow, it would be a good deed to try to
> optimize
> >      >> it for slower links - I think likely it is the new fancy
> javascripty
> >      >> UIs...
> >      >>
> >      >> I could only usefully edit it with the old "code" editor.
> >      >
> >      > Sometimes this is caused by a local configuration or filtering
> >     problem
> >      > with your service provider.
> >      >
> >      > To test by exclusion, set up an SSH tunnel to your
> >     shell.sugarlabs.org <http://shell.sugarlabs.org>
> >      > account:
> >      >
> >      >       ssh -D 9000 shell.sugarlabs.org <http://shell.sugarlabs.org
> >
> >      >
> >      > Then in Firefox, Preferences, Advanced, Network, Connection,
> >     Settings,
> >      > set Manual proxy configuration, set SOCKS Host to localhost, and
> port
> >      > to 9000, and set SOCKS v5.
> >      >
> >      > Then test wiki.sugarlabs.org <http://wiki.sugarlabs.org> again.
> >      >
> >      > For this type of proxy, before login, the Wiki shows IP address of
> >      > 2001:4830:134:7:0:0:0:11
> >      >
> >      > You might also be interested in wikipediafs on Debian.
> >      >
> >
> >
> >     --
> >        _ // Bernie Innocenti
> >        \X/ http://codewiz.org
> >     _______________________________________________
> >     Systems mailing list
> >     Systems at lists.sugarlabs.org <mailto:Systems at lists.sugarlabs.org>
> >     http://lists.sugarlabs.org/listinfo/systems
> >
>
>
> --
>   _ // Bernie Innocenti
>   \X/  http://codewiz.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sugarlabs.org/private/systems/attachments/20150624/dc2327d7/attachment.html>