Hardware Counter-based Performance Characterizing for MPEG4 Video Applications
Yonggang Che · Journal of National University of Defense Technology · 2004
It is the current trend that microprocessors extend their instruction set to speedup the multimedia applications. (Intel's) MMX, SSE and SSE2 are good example. But do the (multimedia) (applications) (favor) these (architecture) (features)? And does the (current) (software) (support) (these) (instruction) sets and make full use of them? These questions are of much (concern) (to) (the) (researchers). We (investigate) the (performance) (characteristics) of 2 (MPEG4) (Video) (players) on an Intel P4 based (desktop) PC by (means) of (dynamic) (profiling). (Based) (on) (Intel) (Vtune), a hardware (performance) (monitoring) tool, we obtain (accurate) (performance) (data). And we make in (depth) (analysis) of the (obtained) data based on the (machine's) (architecture) (parameters) and (performance) (profiles). We find that the 2 (applications) (make) (good) use of 64-bit MMX (instructions). But they (rarely) use SSE and SSE2 (instructions). The (performance) (degradation) due to Cache (misses) at tow levels of Caches is (remarkable). To (enhance) the (performance) of (MPEG4) media (applications), (improving) (memory) (hierarchy) (performance) and (optimizing) the (media) (players) are more (effective) ways than (employing) more (advanced) (multimedia) (instruction) sets.