[Seaside] Re: Seaside & Ruby Rails Compared

goran at krampe.se goran at krampe.se
Wed Sep 7 15:25:26 CEST 2005


Dmitry Dorofeev <dima-sender-3c337a at yasp.com> wrote:
> David Shaffer wrote:
> > Günther Schmidt wrote:
> > 
> > Yes, none of them are ideal.  Nothing to do with Squeak or Smalltalk
> > though.  Persistence sucks.  One problem with file-based solutions in
> > Squeak, though, is that squeak file I/O is blocking (at least under
> > Linux).  That is, the whole VM blocks while file I/O is performed.  This
> > can make your application unresponsive while writing out large image
> > files.  
> Is it the same for socket I/O ?


> I am concerned about image and video uploads in Seaside.

Don't need to be - but see below.

> Videos may be quite heavy. But even image from a camera 1400x1200 pixels
> may freeze the image if socket I/O blocked. In any case I see that i need
> to save images/videos on disk in a separate OS process. Hmm, could you hint
> me where to look for a code snippet?

What you definitely should use is FastSocketStream (on SqueakMap)
instead of standard SocketStream in Squeak. This improves uploading of
files by almost a factor 10.

regards, Göran

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