[Seaside] Re: Seaside & Ruby Rails Compared

[Dmitry Dorofeev]

goran at krampe.se wrote:
> Hi!
> 
> 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 ?
> 
> 
> No.
> 
> 
>>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.

Yes, but once picture/video is in the image i need to save it onto disk.
with 20Mb video it may be a freeze due to disk I/O blocking.

-Dmitry.