Re: + zram-add-size-class-equals-check-into-recompression.patch added to mm-unstable branch

Re: + zram-add-size-class-equals-check-into-recompression.patch added to mm-unstable branch

[Sergey Senozhatsky]

On (22/10/27 13:03), Andrew Morton wrote:
> The patch titled
>      Subject: zram: add size class equals check into recompression
> has been added to the -mm mm-unstable branch.  Its filename is
>      zram-add-size-class-equals-check-into-recompression.patch
> 
> This patch will shortly appear at
>      https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-add-size-class-equals-check-into-recompression.patch

[..]

> Patch series "zsmalloc/zram: configurable zspage size", v3.
> 
> It makes no sense for us to recompress the object if it will be in the
> same size class.  We anyway don't get any memory gain.  But, at the same
> time, we get a CPU time overhead when inserting this object into zspage
> and decompressing it afterwards.
> 
> Link: https://lkml.kernel.org/r/20221027042651.234524-1-senozhatsky@chromium.org
> Link: https://lkml.kernel.org/r/20221027042651.234524-2-senozhatsky@chromium.org
> Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: Nitin Gupta <ngupta@vflare.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>