Comparative Study on Data Compression Techniques in Cache to Promote Performance

Cache memory is a small, faster memory used to store recently accessed data or neighboring data item, so that the data need not be acquired from next level memories. The use of cache memory reduces the overall memory access time. As cache memory is related to memory speeding up process, the caching process should consume less time. To speed up caching process, there are many cache optimizations available. Some of the cache optimization process are reducing miss rate, reducing miss penalty, reducing the time to hit in the cache etc. Recent advancement paved way for compressing data in cache. Through data compression in cache more data resides in cache resulting in more hit ratio. There are many cache related compression and optimization techniques available. The paper deals with some recent techniques of compression.