Performance issue - log file contains only FDR rows.

Hi,
does anybody know, what is going on, when the log file contains only rows pasted bellow ? In the flow it is at the and of workflow, and the last step is calling TBUI.

What these wraps actually means ?

Log level is set to 5
Generated on dedicated client

.....
ObjMgrSqlLog    Detail    4    00000002514945e0:0    2013-03-20 18:52:42   
***** SQL Statement Initial Fetch Time for SQL Cursor with ID 1F442648: 0.000 seconds *****

FDRLog    FDRDetail    4    00000002514945e0:0    2013-03-20 18:52:44    Total # Buffer Wraps = 194
FDRLog    FDRDetail    4    00000002514945e0:0    2013-03-20 18:52:44    Last Wrap Duration = 3 secs
FDRLog    FDRDetail    4    00000002514945e0:0    2013-03-20 18:52:44    Next Absolute Record ID = 384896
FDRLog    FDRDetail    4    00000002514945e0:0    2013-03-20 18:52:46    Total # Buffer Wraps = 195
FDRLog    FDRDetail    4    00000002514945e0:0    2013-03-20 18:52:46    Last Wrap Duration = 2 secs