The technology of flash memory SSDs (solid state drives) which are increasingly adopted in a wide spectrum of storage systems has the potential of changing the database architecture and principles. With the high random access speed and high IOPS of the SSD, this paper describes a secondary buffer pool & readahead solution based on OLTP for MySQL InnoDB which can reduce I/O requests & latency an...

Most research of Solid State Drives architectures rely on Flash Translation Layer (FTL) algorithms and wear leveling; however, internal parallelism in Solid State Drives has not been well explored. In this research, I proposed a new strategy to improve SSD write performance by enhancing internal parallelism inside SSDs. A SDRAM buffer is added in the design for buffering and scheduling write re...

Parallel I/O systems are an integral component of modern high performance systems, providing large secondary storage capacity, and having the potential to alleviate the I/O bottleneck of data intensive applications. In these systems the I/O buffer can be used for two purposes (a) improve I/O parallelism by buffering prefetched blocks and making the load on disks more uniform, and (b) improve I/...

To meet the exascale I/O requirements for High-Performance Computing (HPC), a new subsystem, Burst Buffer, based on solid state drives (SSD), has been developed. However, diverse HPC workloads and bursty pattern cause severe data fragmentation that requires costly garbage collection (GC) increases number of bytes written to SSD. address this challenge, multi-stream feature developed SSDs. In wo...

We consider the problem of data retrieval from disk storage in a video server where the data is stored in constant size blocks. The two critical resources of a video server are the amount of disk I/O bandwidth and the main memory buffer required to support a video stream. We propose a new algorithm that allows us to determine the cost-optimal trade-off between these two server resources as well...

This paper presents an advance router design using enhanced buffer. The design provides advantages of both buffer and bufferless network for that two cross bar switches are used. The concept of virtual channel (VC) is eliminated from the previous design by using an efficient flow-control scheme that uses the storage already present in pipelined channels in place of explicit input virtual channe...

We describe and implement an algorithmic framework for memory efficient, ‘on-the-fly’ halftoning in a progressive transmission environment. Instead of a conventional approach which repeatedly recalls the continuous tone image from memory and subsequently halftones it for display, the proposed method achieves significant memory efficiency by storing only the halftoned image and updating it in re...

Consistent performance of anti-drug antibody (ADA) assays through all stages of clinical development is critical for the assessment of immunogenicity and interpretation of PK, PD, safety, and efficacy. The electrochemiluminescent assays commonly employed for ADA measurement use drug conjugated with ruthenium and biotin to bind ADA in samples. Here we report an association between high nonspecif...

The new characteristics of flash memory bring great challenges in optimizing database performance, by using new querying algorithms, indexes, buffer management schemes, and new transaction processing protocols. In this talk, we will first present an overview on the FlashDB project, which was launched in 2009 and supported by the National Natural Science Foundation of China (No. 60833005). The p...