-iPhone backboardd[52] : failed to resume in time

Some times u are getting this error

Feb 27 13:18:45 -iPhone backboardd[52] <Warning>: com.xyz.abc failed to resume in time

Main cause for this is the load on main thread. 

Try to avoid calling blocking calls for long time on main thread.

Create separate threads for such things.

If u know steps to reproduce follow steps find load on main thread also 

find performSelectorOnMainThread function used and get called at the same time.

try to avoid call many performSelectorOnMainThread functions.

Which crates extra burden on main thread.