fsperf error msg: ERROR: Exception: Could not allocate buffer!

./fsperf  -m all -b 1M -f 16G -i random  /data/

The tests will be executed with the following settings:

   Test mode:..............................all

   Measurements............................all

   Program output:.........................short

   Block size:.............................1MB

   File size:..............................16GB

   I/O access order:.......................random

   Randomize data:.........................yes

   Interactive:............................no

   No cleanup: ............................no

   No initialization:......................no

   Directory path:........................./data/

   Additional program parameters:

      None

ERROR: Exception: Could not allocate buffer!