[LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution Reverb

[Olivier Guilyardi]

Hi!

On 02/26/2011 09:08 PM, David Robillard wrote:

> Fair enough. The sum of all installed LV2 data loaded into a data
> structure can be large, though. My new implementation is still not quite
> optimal, though:

[...]

> On Android it's probably not an issue though, as you say. For other
> embedded situations it would be nice to have absolutely minimal space
> overhead on top of the actual data itself... plus it's fun :)

It makes sense indeed to reduce memory usage, but reading the above, I get a
feeling like parsing the metadata of a typical plugin set won't exceed a few Kb
of RAM.

To give you an idea, on a rather old device such as the HTC Magic, you have
288Mb of RAM, and when an app is in the foreground you can safely use quite a
lot of memory.

There could more constrained embedded situations where plugins are needed,
although I can't really think about any real-world example ATM.

> Fair enough. It seems the libraries involved can be built to be well
> under 100k with -Os and such, but I have no idea how 64-bit shared
> library code compares to static android code in terms of size. I'm all
> for contributions that shave a bit of space, but everything seems pretty
> good to me now (glib aside).

Once you remove the glib dep, I should be able to tell you what size I get when
compiling with the Android NDK. I have checked again, and 100Kb is good in my
case. FYI, APK packaging uses zip compression.

--
  Olivier