Daniel Jordan writes:
> On Thu, May 28, 2020 at 01:32:40PM +0800, Huang, Ying wrote:
>> Daniel Jordan writes:
>>
>> > On Mon, May 25, 2020 at 08:26:48AM +0800, Huang Ying wrote:
>> >> diff --git a/mm/swapfile.c b/mm/swapfile.c
>> >> index 423c234aca15..0abd93d2a4fc 100644
>> >> ---
On Thu, May 28, 2020 at 01:32:40PM +0800, Huang, Ying wrote:
> Daniel Jordan writes:
>
> > On Mon, May 25, 2020 at 08:26:48AM +0800, Huang Ying wrote:
> >> diff --git a/mm/swapfile.c b/mm/swapfile.c
> >> index 423c234aca15..0abd93d2a4fc 100644
> >> --- a/mm/swapfile.c
> >> +++ b/mm/swapfile.c
>
Daniel Jordan writes:
> On Mon, May 25, 2020 at 08:26:48AM +0800, Huang Ying wrote:
>> diff --git a/mm/swapfile.c b/mm/swapfile.c
>> index 423c234aca15..0abd93d2a4fc 100644
>> --- a/mm/swapfile.c
>> +++ b/mm/swapfile.c
>> @@ -615,7 +615,8 @@ static bool scan_swap_map_try_ssd_cluster(struct
>>
On Mon, May 25, 2020 at 08:26:48AM +0800, Huang Ying wrote:
> diff --git a/mm/swapfile.c b/mm/swapfile.c
> index 423c234aca15..0abd93d2a4fc 100644
> --- a/mm/swapfile.c
> +++ b/mm/swapfile.c
> @@ -615,7 +615,8 @@ static bool scan_swap_map_try_ssd_cluster(struct
> swap_info_struct *si,
>
In some swap scalability test, it is found that there are heavy lock
contention on swap cache even if we have split one swap cache radix
tree per swap device to one swap cache radix tree every 64 MB trunk in
commit 4b3ef9daa4fc ("mm/swap: split swap cache into 64MB trunks").
The reason is as
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