diff options
| author |   Mel Gorman <mgorman@techsingularity.net> | 2022-03-22 14:43:33 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-22 15:57:06 -0700 |
| commit | 35b6d770e6334aa470080570f0f81c8b74a07afd (patch) | |
| tree | bfd767977bc24462df79ffa4acb8abfd0846d4f2 /tools/perf/scripts/python | |
| parent | mm/page_alloc: fetch the correct pcp buddy during bulk free (diff) | |
mm/page_alloc: track range of active PCP lists during bulk free
free_pcppages_bulk() frees pages in a round-robin fashion. Originally,
this was dealing only with migratetypes but storing high-order pages
means that there can be many more empty lists that are uselessly
checked. Track the minimum and maximum active pindex to reduce the
search space.
Link: https://lkml.kernel.org/r/20220217002227.5739-3-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Aaron Lu <aaron.lu@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions