Re: [PATCH v2 2/2] mm, slab: Show last shrink time in us when slab/shrink is read

[Waiman Long]

On 7/19/19 2:14 AM, Michal Hocko wrote:
> On Wed 17-07-19 16:24:13, Waiman Long wrote:
>> The show method of /sys/kernel/slab/<slab>/shrink sysfs file currently
>> returns nothing. This is now modified to show the time of the last
>> cache shrink operation in us.
> Isn't this something that tracing can be used for without any kernel
> modifications?

That is true, but it will be a bit more cumbersome to get the data.
Anyway, this is just a nice to have patch for me. I am perfectly fine
with dropping it if this does not prove to be that useful.

Thanks,
Longman