PixMap Surface slower and slower, why?

Hi everyone. I am using Mali-400 GPU, on Allwinner A20, under linux. I am using egl pixmap surface. Rendering results correct, but every time when i calling glDraw with the same parameters, the runtime...
PixMap Surface slower and slower, why?

Hi everyone. I am using Mali-400 GPU, on Allwinner A20, under linux. I am using egl pixmap surface. Rendering results correct, but every time when i calling glDraw with the same parameters, the runtime...
An algorithm on a M7 is slower than on M4 - why?

Hi there, we are working on an audio project, where we move some firmware from an STM32F407 (ARM Cortex M4) to an ATSAME70 (ARM Cortex M7). Despite the ATSAME70 runing at 300 MHz, while the STM32F407...
An algorithm on a M7 is slower than on M4 - why?

Hi there, we are working on an audio project, where we move some firmware from an STM32F407 (ARM Cortex M4) to an ATSAME70 (ARM Cortex M7). Despite the ATSAME70 runing at 300 MHz, while the STM32F407...
NEON Running slower