[PATCH 0/2] Measure read while write latency

Miquel Raynal miquel.raynal at bootlin.com
Mon Nov 21 01:47:10 PST 2022

Hi Pratyush, David

pratyush at kernel.org wrote on Mon, 21 Nov 2022 10:40:20 +0100:

> On 21/11/22 08:37AM, David Oberhollenzer wrote:
> > Applied to mtd-utils.git master.  
> But SPI NOR does not yet support read-while-write. The patches are still 
> under review [0]. So does this even work? Should mtd-utils test a 
> feature that has not been merged into the driver yet? I think it should 
> not.

I don't mind if the tool gets in first, it won't hurt anyway as:
- no changes are expected if people do not use the new -k option
- if they do, the gained latency will just be 0 (which is a use case of
  the tool: measuring whether or not RWW works/is supported).

> [0] https://lore.kernel.org/linux-mtd/20221110155513.819798-1-miquel.raynal@bootlin.com/T/#mf4fdf32e77b1b21bd30ca01eed999f0efc3db6ee

The only thing is: if the series does not get in for any reason, we'll
have to revert it.

Either ways, I'm fine with it.


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