changes to io.py applied to script, tasks for fio added
diff --git "a/tasks/io_task_randwrite_4kb_8\321\201.cfg" "b/tasks/io_task_randwrite_4kb_8\321\201.cfg"
new file mode 100644
index 0000000..c019ef4
--- /dev/null
+++ "b/tasks/io_task_randwrite_4kb_8\321\201.cfg"
@@ -0,0 +1,12 @@
+[writetest]
+blocksize=4k
+filename=file.bin
+rw=randwrite
+direct=1
+buffered=0
+ioengine=libaio
+iodepth=1
+size=10Gb
+runtime=5
+timeout=5
+numjobs=8