Hi Prabhakar, > This patch series optimizes the Renesas RPC-IF driver by significantly > reducing software overhead in both the direct memory-mapped (dirmap) and > manual transfer paths, maximizing transaction throughput, and introducing > runtime PM autosuspend to prevent aggressive power gating during > consecutive flash operations. Sounds great. I want to test it on R-Car V4H SparrowHawk. > These changes were benchmarked using flash_speed on the RZ/T2H EVK with > xSPI0/1 interfaces operating in 1S-1S-1S mode for write operations: 'flash_speed' from mtd-utils, I assume. Did you use other options than '-d' for testing writes? Thanks and happy hacking, Wolfram