10 bulk_get 1024*1000;
10 parallel: 1 bulk_get 1024*1000;
10 parallel: 2 bulk_get 1024*1000;
10 parallel: 3 bulk_get 1024*1000;
10 parallel: 4 bulk_get 1024*1000;
10 parallel: 5 bulk_get 1024*1000;
10 parallel: 6 bulk_get 1024*1000;
10 parallel: 7 bulk_get 1024*1000;
10 parallel: 8 bulk_get 1024*1000;
10 parallel: 9 bulk_get 1024*1000;
10 parallel: 10 bulk_get 1024*1000;
