The multi-threaded optimization of dynamic binary translation

Dynamic binary translation which offers a solution for making an executable compiled on a platform to run on another platform automatically resolves the problem of code migration. The current single-threaded dynamic binary translation systems don´t have enough scope to improve the performance. Therefore, the multi-core processors and the multi-threaded program are fully used for getting the high performance. Therefore, based on the performance analysis and experiments results of a single-threaded dynamic binary translation system, this paper shows the framework of MDT (Multi-Threaded Dynamic Binary Translation) system and the optimizations implemented on it. For achieving the speculatively translation scheme, the T-Tree (Translation Tree) is built by the servant thread which gives the direction of getting the next pc. Besides that, integrated with the merit of multi-level Cache scheme, the LRU scheme and the full flush scheme, a new management of T-Cache is presented which proves out managing the translated blocks efficiently. The framework and optimizations of MDT are evaluated wholly and partly across SPEC 2006 under the Alpha multi-core environment. The results compared with QEMU demonstrate that the speculative translation and the reducing of T-Cache missing rate are effectively.