Windows 10 Fragmentation - Microsoft Community

we facing memory fragmentation issue in our 32 bit app (c++ , wpf based). when run 100 hrs. part of automated test. application crashes after running ast ~14 hrs.
use crt heap lfh policy (low fragment heap)  exclusively enabled in main(). problem coming on windows 10 platform. no issue on windows 8 platform same set of our application binaries. we completed 100 hrs. run test in windows 8 platform.

we create large block heap in main() method , heap use specific purpose when need large amount of 
memory , managing in our code.

from virtual memory statistics logs can see initial virtual memory allocation 1.79 gb.

after 14 hrs. of automated test run : on windows 10

combined available     = 1590176752(       1516.511 mb)
combined max available =    3989504(          3.805 mb)
combined frag percent  =      99.75%
vm:sum_free           = 1581957120(36.83%,1508.672 mb)
vm:max_free           =   10321920(          9.844 mb)

on windows 8 100 hrs.

combined available     = 1881204960(       1794.057 mb)

combined max available = 1734127616(       1653.793 mb)

combined frag percent  =       7.82% 

vm:sum_free           = 1845817344(42.98%,1760.309 mb)

vm:max_free           = 1734127616(       1653.793 mb)

we using adplus , (debugging tools windows, windbg , debugdiag) tool collect memory dumps @ interval of 3 hrs.

hi nikhil, 

 

 

based on details provided, matter best handle our professionals in technet forum. recommend post issue on our social technet assist issue. our professionals , technet members glad out. 

 

let know if have further queries. 

 

regards.

Windows / Windows 10 / Performance & system failures