Re: [PATCH] mm/page_owner: Record the timestamp of all pages during free

2021-02-01 Thread Vlastimil Babka
On 1/30/21 12:45 AM, Georgi Djakov wrote: > Collect the time when each allocation is freed, to help with memory > analysis with kdump/ramdump. > > Having another timestamp when we free the page helps for debugging > page migration issues. For example both alloc and free timestamps > being the

[PATCH] mm/page_owner: Record the timestamp of all pages during free

2021-01-29 Thread Georgi Djakov
Collect the time when each allocation is freed, to help with memory analysis with kdump/ramdump. Having another timestamp when we free the page helps for debugging page migration issues. For example both alloc and free timestamps being the same can gave hints that there is an issue with migrating