On Improving Antivirus Scanning Engines: Memory On-Access Scanner

Improving Search Engines Performance on Multithreading Processors

In this paper we present strategies and experiments that show how to take advantage of the multi-threading parallelism available in Chip Multithreading (CMP) processors in the context of efficient query processing for search engines. We show that scalable performance can be achieved by letting the search engine go synchronous so that batches of queries can be processed concurrently in a simple ...

Remote Fingerprinting and Exploitation of Mail Server Antivirus Engines

Vulnerabilities within antivirus engines deployed at a mail server represent a serious risk to the security of organizations. If a sophisticated attacker is able to remotely probe a mail server and identify the particular antivirus engine used, he may craft a malformed message to exploit the engine with a low risk of detection. This paper explores how much information is exposed by these mail s...

Improving Memory Management with Hardware-Generated Memory Access Profiles

With the rise of new memory technologies such as Flash we expect future systems to rely on a flatter memory hierarchy using multiple heterogeneous memory units in parallel. Operating systems face new challenges in managing these memories in a costand energy-efficient way while maximizing performance. We believe that the key to meet these challenges is to leverage the full potential of each memo...

Main Memory Storage Engines

On Improving the Memory Access Patterns During The Execution of Strassen's Matrix Multiplication Algorithm

Matrix multiplication is a basic computing operation. Whereas it is basic, it is also very expensive with a straight forward technique of O(N ) runtime complexity. More complex solutions such as Strassen’s algorithm exist that reduce this complexity to O(N log2 ); the recursive nature of such algorithms place a large burden on memory systems due to temporary storage and the lack of locality in ...