On Wed, Feb 28, 2024 at 05:11:17AM +0000, Richard Chang wrote: > alloc_contig_migrate_range has every information to be able to > understand big contiguous allocation latency. For example, how many > pages are migrated, how many times they were needed to unmap from > page tables. > > This patch adds the trace event to collect the allocation statistics. > In the field, it was quite useful to understand CMA allocation > latency. > > Signed-off-by: Richard Chang <richardycc@xxxxxxxxxx> Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
