*** /home/tomas/tmp/sysbench-0.4.12/sysbench/tests/memory/sb_memory.c	2009-03-15 13:42:04.000000000 +0100
--- sysbench/tests/memory/sb_memory.c	2012-08-26 14:16:29.301466872 +0200
***************
*** 244,249 ****
--- 244,250 ----
  int memory_execute_request(sb_request_t *sb_req, int thread_id)
  {
    sb_mem_request_t    *mem_req = &sb_req->u.mem_request;
+   volatile int        vtmp = 0;
    int                 tmp = 0;
    int                 idx; 
    int                 *buf, *end;
***************
*** 273,279 ****
          {
            idx = (int)((double)rand / (double)SB_MAX_RND *
                        (double)(memory_block_size / sizeof(int)));
!           buf[idx] = tmp;
          }
          break;
        case SB_MEM_OP_READ:
--- 274,280 ----
          {
            idx = (int)((double)rand / (double)SB_MAX_RND *
                        (double)(memory_block_size / sizeof(int)));
!           buf[idx] = vtmp;
          }
          break;
        case SB_MEM_OP_READ:
***************
*** 281,287 ****
          {
            idx = (int)((double)rand / (double)SB_MAX_RND *
                        (double)(memory_block_size / sizeof(int)));
!           tmp = buf[idx];
          }
          break;
        default:
--- 282,288 ----
          {
            idx = (int)((double)rand / (double)SB_MAX_RND *
                        (double)(memory_block_size / sizeof(int)));
!           vtmp = buf[idx];
          }
          break;
        default:
***************
*** 296,301 ****
--- 297,303 ----
        case SB_MEM_OP_NONE:
          for (; buf < end; buf++)
            tmp = end - buf;
+ 	vtmp = tmp;
          break;
        case SB_MEM_OP_WRITE:
          for (; buf < end; buf++)
***************
*** 304,309 ****
--- 306,312 ----
        case SB_MEM_OP_READ:
          for (; buf < end; buf++)
            tmp = *buf;
+ 	vtmp = tmp;
          break;
        default:
          log_text(LOG_FATAL, "Unknown memory request type:%d. Aborting...\n",