1.Research goal & our approaches 

- Evaluate existing Hot/Cold separator using the oracle predictor on future update time

- Knowing future update time is an important factor in separating data

- Propose a new data separation technique based on update times of data

- Predicts indirectly update times of data based on program behavior

- Some parts of a program repeatedly have similar behavior patterns

- Separates data based on characteristics of each program contexts

2. Published papers

Keonsoo Ha, Jihong Kim, "A Program Context-Aware Data Separation Technique for Reducing Garbage Collection Overhead in NAND Flash Memory ," International Workshop on Storage Network Architecture and Parallel I/Os (SNAPI 2011) in conjunction with MSST 2011, Denver, USA, May 25, 2011