Re: [PATCH v3 2/2] mm/swap: select swap device with default priority round robin

[Baoquan He <bhe@redhat.com>]

On 09/30/25 at 02:33pm, Baoquan He wrote:
......snip... 
> With the change, we can see about 18% efficiency promotion relative to
> node based way as below. (Surely, the pre-commit a2468cc9bfdf way is
> the worst.)
> 
> vm-scability test:
> ==================
> Test with:
> usemem --init-time -O -y -x -n 31 2G (4G memcg, zram as swap)
>                             one by one:      node based:      round robin:
> System time:                1087.38 s        637.92 s         526.74 s     (lower is better)
> Sum Throughput:             2036.55 MB/s     3546.56 MB/s     4207.56 MB/s (higher is better)
> Single process Throughput:  65.69 MB/s       114.40 MB/s      135.72 MB/s  (high is better)
> free latency:               15769409.48 us   10138455.99 us   6810119.01 us(lower is better)
> 
> Signed-off-by: Baoquan He <bhe@redhat.com>


This tag was missed for this patch:

Suggested-by: Chris Li <chrisl@kernel.org>

> ---
>  mm/swapfile.c | 31 ++++---------------------------
>  1 file changed, 4 insertions(+), 27 deletions(-)
......