Tracking down FPS drop

I'm currently setting up a building, and I keep noticing this odd, very sharp drop in FPS, like from 25 down to 10 or 8ish.

It's fairly stable and replicatable; I can mouselook around and 'track' whenever the thing enters/leaves my FOV.

I suppose I'm asking if there's any way I can track this thing down without having to selectively destroy objects in order to find it.

There are some things you can try (have debug menu active)

1) open the texture stats (ctrl-shift-3) and watch the two indicators on the top, that's the video memory allocation. "Texture LOD" (where SL has to swap or downscale textures because there isn't enough video memory available) causes considerable drop in framerates. You might have too many, too big textures (you're not using anything over 512x512 right?)

2) if it's not textures, it can be the geometry. open general stats (ctrl-shift-1) and expand the advanced section until you find renderer stats - look at the number of KTris/frame - does it go up drastically when your FPS drops? If yes, switch to the wireframe mode (ctrl-shift-r I think? not sure) and look for objects with the most triangles (dense wireframe).

3) if everything else fails, blame Baba

It can be also the case that a already big texture like 512x512 is textured too many times on a prim or even on hidden sides of the prim. One can see this visually by selecting the "select texture side" (or similar sounding) in the editor window and then clicking on the texture side you wanna know.
Though I am not sure if sl does any reduction of texturing for not seen sides. Afaik not as I have textures that are in the graphics memory for a closed photobook.
Regards,
Leff.

Hm... I've been running SL on my home PC and I'm not getting any slowdown... must be something hardware-related.

Thanks for the help.