[PATCH v2] test: improve resiliency of malloc autotest

[Dmitry Kozlyuk]

2025-01-17 13:52 (UTC+0000), Bruce Richardson:
> The test case "test_multi_alloc_statistics" was brittle in that it did
> some allocations and frees and then checked statistics without
> considering the initial state of the malloc heaps. This meant that,
> depending on what allocations/frees were done beforehand, the test can
> sometimes fail.
> 
> We can improve resiliency by running the test using a new malloc heap,
> which means it is unaffected by any previous allocations.
> 
> Bugzilla ID: 1579
> Fixes: a40a1f8231b4 ("app: various tests update")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
> ---
> v2:
> * removed unnecessary extra include
> * only added new code for non-windows, since using mmap for allocation.

Why is it necessary to use `mmap()` and not portable `malloc()`?
Even the comment in the patch says "malloc" :)