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This work presents QTrace, an open-source instrumentation extension API for QEMU (1) that can instrument unmodified applications and OS binaries for uni- and multi-processor systems. QTrace facilitates the development of custom, full-system instrumentation tools for the X86 guest architecture enabling statistics collection and program execution studies including system-level code. This paper: illustrates...
This work revisits precomputation prefetching targeting long access latency loads with access patterns that are hard to predict. It presents Ekivolos, a precomputation prefetcher system that automatically builds prefetching slices that contain enough control flow instructions to faithfully and autonomously recreate the program's access behavior without inducing monitoring and execution overhead on...
In this paper, we describe a framework for GPS/INS based Portable Positioning System. The framework includes two main components: receiving terminal and monitoring center. In the receiving terminal, the digital compass and the GPS modules are both connected with an I/O interface in a FPGA to provide an integrated positioning solution. This integrated positioning algorithm can solve the problems arising...
GIPSY is a platform providing a framework for the compilation and execution of programs written in intensional programming languages of the Lucid family. While maintaining its use of intensionality, over the years, Lucid constantly underwent changes in its syntax, and its semantics is getting more and more generalized. Throughout this hectic evolution of the language, various systems for the evaluation...
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