I assign 4GB to the heap.
in ecall_init_array function:
#define ARRAYSIZE 1024*1024*1024
long * addr = new long[ARRAYSIZE]
for (int i = 0;i<ARRAYSIZE;i++)
{
long tmp =0;
/*some simple computation for tmp*/
addr = tmp;
}
I run this application by binding a specific core like:
taskset -c 2 ./app
and the result:
[0] ecall_init_array cpu cycle consumes: 481875
[1] ecall_init_array cpu cycle consumes: 458252
[2] ecall_init_array cpu cycle consumes: 544906
[3] ecall_init_array cpu cycle consumes: 1875701
[4] ecall_init_array cpu cycle consumes: 1515500
[5] ecall_init_array cpu cycle consumes: 455037
[6] ecall_init_array cpu cycle consumes: 465117
[7] ecall_init_array cpu cycle consumes: 1501333
[8] ecall_init_array cpu cycle consumes: 452456
[9] ecall_init_array cpu cycle consumes: 470103
why does it happen? some cpu cycle consumes is the three times to the others.
