OMAP-L138: Memory access performance comparison data

Is there information available that would allow me to compare ballpark memory access times between the following cases?

LCDK138 data would be helpful. EVM data would be ok.

• OMAP-L138:
  • DSP core vs. ARM core
    • Read access from / write access to:
      • L1P memory
      • L1D memory
      • L2 memory
      • Shared RAM (on-chip)
      • DDR2 (off-chip)

Data for a project using no optimization would be useful. Data for a project with and without optimization would be even better.

Data for a project using no cache would be useful. Data for a project with and without cache would be even better.