Re: [PATCH v2 0/6] memory: renesas-rpc-if: Optimize transfer overhead and implement runtime PM autosuspend
From: Lad, Prabhakar
Date: Mon Jul 27 2026 - 14:01:50 EST
Hi Wolfram,
On Mon, Jul 27, 2026 at 4:51 PM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> 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.
>
Thank you.
> > 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?
>
Apart from the -d option I used `-c 256` option too.
Cheers,
Prabhakar