search for: mmap_threshold

...ns and collecting them to free later somehow, which just happens to only trigger every other reboot (e.g. perhaps it is based on some threshold of free memory). ...investigates... So, http://man7.org/linux/man-pages/man3/malloc.3.html talks about special behaviour using mmap for allocations above MMAP_THRESHOLD (128K by default), which we will be hitting here I think. That explains the anon mapping. http://man7.org/linux/man-pages/man3/mallopt.3.html also talks about various dynamic thresholds for growing and shrinking the heap. My guess is that we are bouncing up and down over some threshold with every...

On 11/20/2014 03:21 PM, Konrad Rzeszutek Wilk wrote: > On Thu, Nov 20, 2014 at 03:48:47PM +0000, Ian Campbell wrote: >> The libxc xc_dom_* infrastructure uses a very simple malloc memory pool which >> is freed by xc_dom_release. However the various xc_try_*_decode routines (other >> than the gzip one) just use plain malloc/realloc and therefore the buffer ends >> up