Changes the default filesize to 1g so that profiling a file works again
Change-Id: I060b7af75be08f4ffb411f1c612babb846172dd5
JIRA: STORPERF-153
Signed-off-by: mbeierl <mark.beierl@dell.com>
(cherry picked from commit 
c8c1bc3cf1895c28d9d5cbfaff7ec80ed95b93b8)
 
     def __init__(self):
         self.logger = logging.getLogger(self.__class__.__name__)
-        self.default_filesize = "100%"
+        self.default_filesize = "1G"
         self.filename = '/dev/vdb'
         self.options = {
             'ioengine': 'libaio',