Messages in this thread | | | Date | Thu, 02 Aug 2018 19:27:40 +0800 | From | Wei Wang <> | Subject | Re: [PATCH v2 2/2] virtio_balloon: replace oom notifier with shrinker |
| |
On 08/02/2018 07:00 PM, Tetsuo Handa wrote: > On 2018/08/02 19:32, Wei Wang wrote: >> On 08/01/2018 07:34 PM, Michal Hocko wrote: >>> Do you have any numbers for how does this work in practice? >> It works in this way: for example, we can set the parameter, balloon_pages_to_shrink, >> to shrink 1GB memory once shrink scan is called. Now, we have a 8GB guest, and we balloon >> out 7GB. When shrink scan is called, the balloon driver will get back 1GB memory and give >> them back to mm, then the ballooned memory becomes 6GB. > Since shrinker might be called concurrently (am I correct?),
Not sure about it being concurrently, but I think it would be called repeatedly as should_continue_reclaim() returns true.
Best, Wei
| |