[squeak-dev] Snowglobe and Tether (was "WebAssembly" on vm-dev)

Ben Coman btc at openinworld.com
Tue Dec 13 13:30:02 UTC 2016

On Sat, Dec 10, 2016 at 12:26 PM, Craig Latta <craig at blackpagedigital.com>

>      (Followups to squeak-dev, please.)
> Hi all--
>      Ben writes:
> > Side thought: Craig's work to incrementally download a running image
> > could be useful to reducing web page startup time.
>      Ooh, I'm not sure I did what you think I did... Tell me more about
> that feature! :)  So far there's still a point where an entire snapshot
> has to transmit, but you can keep using the app remotely in the
> meantime. In many scenarios you just don't notice the download and
> subsequent switch to local native Squeak.

Your imprinting technique...

To run an imprinting-web-app, initially a very small minimal Image knowing
just enough to display the initial menus is downloaded, then additional
functionality streams down as needed depending on menu item selected. The
full app could continue to download, but priority would be given to
anything associated with the selected menu item.

cheers -ben

cheers -ben

> > Hard to find info on Snowglobe. Only 4 million results to compete
> > with.
>      When I add "smalltalk" or "squeak", I get [1] within the first five
> hits on Google and DuckDuckGo ("snowglobe smalltalk" is first on
> Google). Is that good enough?
>      Speaking of Squeak, Snowglobe isn't limited to that. It just needs
> WebSockets support, which is in all the Smalltalks and web browsers now.
> > I tried the demo. http://blackpagedigital.com/snowglobe
> > Pretty impressive.
>      Thanks!
> > The world menu is a bit sluggish for a few seconds to pop up each
> > time...
>      Hm, I just played with it from Europe and it seemed fine. (There
> are two Snowglobe app servers at the moment, in California and Germany.
> Amazon's DNS chooses the one with the least latency for you.) I had to
> restart the California server. What's your region?
>      Like all app streaming systems, performance is sensitive to
> end-to-end network latency. For some lag-intolerant things, like
> displaying the normal mouse cursor as you move it around, the local
> SqueakJS takes over. It looks like I should do the initial display of
> some of the menus similarly.
> > ...but menu item highlighting is instantaneous, as is editing in the
> > system Browser. However mouse point is off by about 15mm at 7o'clock
> > position.  Platform is 32-bit Linux Chrome Version
> > 48.0.2564.116. (I guess any further discussion on this would be
> > better on squeak-dev)
>      Ah, that bug's new to me. Yes, let's move discussion of that to
> squeak-dev. For direct contact I'm on the Squeak Slack channels[2],
> Twitter (@ccrraaiigg), Skype, etc. etc. I think Slack would be best for
> getting a live group chat going.
> > ...reading about "live serialization" the term "serialivation" pops
> > in mind.
>      Hm, that could lead to libation or Live Nation, or even
> Disassociated Press[3]. (Search engines are going to love this message.)
>      Phil writes:
> > Snowglobe is nice indeed. But still slow on this monster of a machine
> > of mine.
>      Hm, I suspect either the local SqueakJS didn't actually connect to
> an app server, and you were just observing local SqueakJS UI
> performance, or there was severe network latency somewhere between you
> and the servers. I'd be happy to look at it with you.
> > There is also this: http://blackpagedigital.com/tether
> >
> > UI page appears dead though.
>      Oops, some stale links under the hood on that page. Anyway, that
> demo is superceded by the content at [4], which is what you get when you
> visit /tether now, too.
>      Thanks for checking it out!
> -C
> [1] https://thiscontext.com/2016/10/31/app-streaming-with-snowglobe
> [2] http://squeak.slack.com
> [3] https://en.wikipedia.org/wiki/Dissociated_press
> [4] http://blackpagedigital.com/squeak
> --
> Craig Latta
> Black Page Digital
> Amsterdam | San Francisco
> craig at blackpagedigital.com
> +31 6 2757 7177 (SMS ok)
> + 1 415 287 3547 (no SMS)
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