Why cocos2dx rander cost time increase after switch back from ios backend?

Why cocos2dx rander cost time increase after switch back from ios backend?
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#1

after my app come back from ios backend, and wait for 3~5 seconds,
my app’s frame cost time grow to 0.019s( which in normal will be 0.001~0.002s).

this situation can stay 10~20 seconds, and can auto recover to normal state without any human inputs.

Anyone see this problem before?


normal.png (44.5 KB)


problem.png (44.4 KB)


#2

after i using xcode profiling tools, and test the graphic statistics,

i found “EAGLContext_presentRenderBuffer” 's average time increase to 14000us。 that‘s the reason time cost per frame increase.

But how can i got the solution?


#3

hi, guys here, and i come back.

i do lots of google search, and i think i found the reason and answer, just refer to this:

anyone who’s interested with this can take a look to this article,
and i wish cocos2dx team can do some ‘ optimize’ for solve this problem. :stuck_out_tongue: