Mload Performance Issue

I have an Informatica mapping trying to load data from a flatfile to a table. The target table uses MLOAD to load the table in one of the database in teradata development database.
Till yesterday the mapping was taking 2 minutes and from today the mapping was running for more than 2 hours with the same source file. I tried to compare the MLOAD loader log and this is what i found out
Below is the output from mload loader log from yesterday:
**** 11:09:11 UTY0826 A checkpoint has been taken, recording that end of file
     has been reached for IMPORT 1 of this MultiLoad Import task.
**** 11:09:12 UTY1812 A checkpoint is being initiated because 10000 output
     records have been sent to the RDBMS.
**** 11:09:12 UTY0817 MultiLoad submitting the following request:
     CHECKPOINT LOADING INTERVAL 1;
**** 11:09:13 UTY0817 MultiLoad submitting the following request:
     USING Ckpt(VARBYTE(1024)) INSERT DB_T_STAG_MEMBXREF_DEV.ML_POL_CLAIMS_LIST
            (Logtype, Seq, MLoadSeq, MLoadImpSeq, MLoadSrcSeq,       
     MiscInt1,MiscInt2,MiscInt3,MiscInt4,       
     MiscInt5,MiscInt6,MiscInt7,MiscInt8,CkptInterval,byteflag,MLoadCkpt)      
      VALUES (110, 1, 1, 1, 10000, 10000, 0, 10000, 0, 0, 0, 0, 0, 1, 1,
     :Ckpt);
**** 11:09:13 UTY0827 A checkpoint has been taken, recording that input record
     10000 has been processed for IMPORT 1 of this MultiLoad Import task.
**** 11:09:13 UTY1812 A checkpoint is being initiated because 20000 output
     records have been sent to the RDBMS.
**** 11:09:13 UTY0817 MultiLoad submitting the following request:
     CHECKPOINT LOADING INTERVAL 2;
**** 11:09:14 UTY0817 MultiLoad submitting the following request:
     USING Ckpt(VARBYTE(1024)) INSERT DB_T_STAG_MEMBXREF_DEV.ML_POL_CLAIMS_LIST
            (Logtype, Seq, MLoadSeq, MLoadImpSeq, MLoadSrcSeq,       
     MiscInt1,MiscInt2,MiscInt3,MiscInt4,       
     MiscInt5,MiscInt6,MiscInt7,MiscInt8,CkptInterval,byteflag,MLoadCkpt)      
      VALUES (110, 1, 2, 1, 20000, 20000, 0, 20000, 0, 0, 0, 0, 0, 2, 1,
     :Ckpt);
Below is the output from mload loader log from today:
**** 09:38:15 UTY1812 A checkpoint is being initiated because 10000 output
     records have been sent to the RDBMS.
**** 09:38:22 UTY0817 MultiLoad submitting the following request:
     CHECKPOINT LOADING INTERVAL 1;
**** 09:38:23 UTY0817 MultiLoad submitting the following request:
     USING Ckpt(VARBYTE(1024)) INSERT DB_T_STAG_MEMBXREF_DEV.ML_POL_CLAIMS_LIST
            (Logtype, Seq, MLoadSeq, MLoadImpSeq, MLoadSrcSeq,       
     MiscInt1,MiscInt2,MiscInt3,MiscInt4,       
     MiscInt5,MiscInt6,MiscInt7,MiscInt8,CkptInterval,byteflag,MLoadCkpt)      
      VALUES (110, 1, 1, 1, 10000, 10000, 0, 10000, 0, 0, 0, 0, 0, 1, 1,
     :Ckpt);
**** 09:38:23 UTY0827 A checkpoint has been taken, recording that input record
     10000 has been processed for IMPORT 1 of this MultiLoad Import task.
**** 09:43:42 UTY1812 A checkpoint is being initiated because 20000 output
     records have been sent to the RDBMS.
**** 09:43:49 UTY0817 MultiLoad submitting the following request:
     CHECKPOINT LOADING INTERVAL 2;
**** 09:43:50 UTY0817 MultiLoad submitting the following request:
     USING Ckpt(VARBYTE(1024)) INSERT DB_T_STAG_MEMBXREF_DEV.ML_POL_CLAIMS_LIST
            (Logtype, Seq, MLoadSeq, MLoadImpSeq, MLoadSrcSeq,       
     MiscInt1,MiscInt2,MiscInt3,MiscInt4,       
     MiscInt5,MiscInt6,MiscInt7,MiscInt8,CkptInterval,byteflag,MLoadCkpt)      
      VALUES (110, 1, 2, 1, 20000, 20000, 0, 20000, 0, 0, 0, 0, 0, 2, 1,
     :Ckpt);
I am not sure what changed from yesterday to today. Can someone help me to resolve it?