通过循环中的malloc免费调用，AIX进程内存正在增加

我正在AIX 6.1上运行此代码

I am running this code on AIX 6.1

while(true)
{
    int a = rand(); //generate a random integer value
    void* test = malloc(a*a); //allocate large chunk of memory block
    usleep(3000000); //sleep for 3 sec 
    free(test); // release memory block
}

驻留集大小（实际内存）和用于处理的数据段大小正在不断增加。这是通过命令ps v PID
pg sp值检查的，该值在topas中显示为进程正在缓慢增加。

using MALLOCTYPE=buckets My observation is Resident set size(real memory) and data section size for process is continuously increasing. This is check by command ps v PID pg sp value shown in topas for process is slowly increasing.

有人可以证明这一点吗？行为。

Can someone justify this behavior.