GPP vs DSP: A Performance/Energy Characterization and Evaluation of Video Decoding

DyPS

“…This overhead is not negligible in case of decoding a low quality video requiring less processing power. In such case, as confirmed by experimental performance and energy consumption measurements [5], it was shown that a GPP video decoding can be the best choice in many cases as compared to the DSP decoding.…”

“…A frame based DSP decoding analysis showed that the system overhead cannot be neglected in case of low video quality DSP decoding [5]. For example, Figure 2 shows the measured power consumption during the execution of the above steps on an OMAP3530 SoC containing a Cortex A8 ARM processor and a TMS320C64X DSP.…”

“…More information on performance and energy behavior of DSP decoding in term of video quality can be found in [5]. In the next section, we discuss the opportunity to exploit these results in a adaptive video decoding context.…”

Open-PEOPLE, A Collaborative Platform for Remote & Accurate Measurement and Evaluation of Embedded Systems Power Consumption

“…They show that the memory often contributes significantly to the overall power consumption, which leads to a much more complex relationship between energy consumption and core voltage and frequency than is frequently assumed. In [10], they show, that, in some cases, GPP video decoding may be more energy efficient than DSP video decoding by contrast with what one might expect. More recently, in [11], [12], They use physical power measurement to evaluate where goes the consumed energy in smart-phones which provide precious information on how is spent the energy budget in those devices.…”

“…In this section, we describe a use case of an extensive power consumption measurement tests achieved in [10] where authors focus on the energy efficiency of video decoding.…”