Merge pull request #570 from suqinhuang/driver_load_update

Update iozone_cmd of driver_load_stress

qemu/tests/cfg/driver_load_stress.cfg

@@ -29,11 +29,13 @@
             drive_format_stg = virtio
             force_create_image_stg = yes
             remove_image_stg = yes
-            iozone_cmd = "%s:\Iozone\iozone.exe -azR -r 64k -n 1G -g 4G -M -b iozone.xls -f %s:\testfile"
+            disk_letter = I
+            disk_index = 1
+            format_disk = yes
+            iozone_cmd = "WIN_UTILS:\Iozone\iozone.exe -azR -r 64k -n 1G -g 4G -M -b iozone.xls -f ${disk_letter}:\testfile"
             iozone_timeout = 7200
             wait_bg_time = 180
             driver_id_pattern = "(.*?):.*?VirtIO SCSI Disk Device"
-            disk_letter = I
         - with_vioscsi:
             driver_name = vioscsi
             run_bgstress = iozone_windows
@@ -46,11 +48,13 @@
             drive_format_stg = scsi-hd
             force_create_image_stg = yes
             remove_image_stg = yes
-            iozone_cmd = "%s:\Iozone\iozone.exe -azR -r 64k -n 1G -g 4G -M -b iozone.xls -f %s:\testfile"
+            disk_letter = I
+            disk_index = 1
+            format_disk = yes
+            iozone_cmd = "WIN_UTILS:\Iozone\iozone.exe -azR -r 64k -n 1G -g 4G -M -b iozone.xls -f ${disk_letter}:\testfile"
             iozone_timeout = 7200
             wait_bg_time = 180
             driver_id_pattern = "(.*?):.*?VirtIO SCSI pass-through controller"
-            disk_letter = I
         - with_netkvm:
             driver_name = netkvm
             driver_id_pattern = "(.*?):.*?VirtIO Ethernet Adapter"