[imp] Excessive memory usage

[Chuck Hagenbuch]

Quoting Andrew Morgan <morgan at orst.edu>:

> If I send myself a new message with the same exact images, but not  
> in Appledouble wrappers, then it can display the message and the  
> thumbnails correctly even with the PHP memory limit set to 100MB  
> (our production setting).
>
> Looking through the Appledouble viewer code in IMP, I'm guessing  
> that there are simply too many copies of the same data being made,  
> bloating the memory size.
>
> Is this a known issue/bug?

Probably not (well, now it is). Michael S. has done a bunch of memory  
optimizations, but I would not be surprised if the appledouble code  
wasn't on the hit list.

-chuck