qt - Yocto IO operation keep memory increasing -


my environment:

qt: 5.3.1  os: yocto poky 1.6.2

i found memory increasing problem when qt program logging, did shell experiment:

for in {0..1000000}  printf "a" >> text.txt done
  1. using free check used memory.
  2. run shell
  3. recheck it.

result: memory increased , won't release @ all.

why did happen? if have idea problem, please share.


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