Strange behaviour with buffered rendering

[Carter07]

(01-30-2013 03:30 PM)JumperTwo Wrote:  

(01-30-2013 03:18 PM)Carter07 Wrote:  I tried also in my 2 devices (Acer s120 gingerbread and LG L9 ics) and it's a bug, I think nobody found it because we are all using buffered rendering on.

With this strange bug it's noticeably faster also for me (adreno 205 and sgx540 overclocked) but the screen is flickering a lot.
Speed is better because the emulator is rendering graphics at 1/4 resolution, if it's faster that means also your device with adreno 220 is gpu limited at native resolution (480x272).

i think resolution is always the same. buffered rendering works at native too (as you say 480x272) ,but it's stretched to match phone's display dimension (without checking aspect ratio i guess)

Yes you're right, it's not 1/4 but 480x272.
In windows buffered rendering itself doesn't seem to affect performance (in obscure I get the same 220fps with fps limiter disabled).
Maybe in android it does because upscaling is expensive for the gpu.
I'm sure it's due to gpu because I see cpu usage always at 100% with buffered rendering off, with it on it's at 70-80% but it varies in different games.