在 2023/10/19 0:28, Yu Zhao 写道:
On Wed, Oct 18, 2023 at 2:22 AM Huan Yang <link@xxxxxxxx> wrote:
This patch add two reclaim stat:
nr_promote: nr_pages shrink before promote by folio_update_gen.
nr_demote: nr_pages NUMA demotion passed.
The above isn't specific to MLGRU, so they should be in a separate patchset.
OK, nr_demote isn't MGLRU, separate is good, but, if this, nr_demote
isn't need by
myself, I just add this when I see this code. :)
Please see nr_promote and nr_scanned fix is MGLRU need?
And then, use correct nr_scanned which evict_folios passed into
trace_mm_vmscan_lru_shrink_inactive.
Mistake info like this:
```
kswapd0-89 [000] 64.887613: mm_vmscan_lru_shrink_inactive:
nid=0 nr_scanned=64 nr_reclaimed=0 nr_dirty=0 nr_writeback=0
nr_congested=0 nr_immediate=0 nr_activate_anon=0 nr_activate_file=0
nr_ref_keep=0 nr_unmap_fail=0 priority=4
flags=RECLAIM_WB_FILE|RECLAIM_WB_ASYNC
```
Correct info like this:
```
<...>-9041 [006] 43.738481: mm_vmscan_lru_shrink_inactive:
nid=0 nr_scanned=13 nr_reclaimed=0 nr_dirty=0 nr_writeback=0
nr_congested=0 nr_immediate=0 nr_activate_anon=9 nr_activate_file=0
nr_ref_keep=0 nr_unmap_fail=0 nr_promote=4 nr_demote=0 priority=12
flags=RECLAIM_WB_ANON|RECLAIM_WB_ASYNC
```
Adding Jaewon & Kalesh to take a look.
Thanks, Huan
