Re: [PATCH 0/8] Make PDX compression optional

[Julien Grall <julien@xxxxxxx>]

Hi Alejandro,

Great work!

On 17/07/2023 17:03, Alejandro Vallejo wrote:
> Currently there's a CONFIG_HAS_PDX Kconfig option, but it's impossible to
> disable it because the whole codebase performs unconditional
> compression/decompression operations on addresses. This has the
> unfortunate side effect that systems without a need for compression still
> have to pay the performance impact of juggling bits on every pfn<->pdx
> conversion (this requires reading several global variables). This series
> attempts to:
Just as a datapoint. I applied this to a tree with Live-Update support. 
From the basic test I did, this is reducing the downtime by 10% :).
Cheers,

--
Julien Grall