diff options
| author | SeongJae Park <sj@kernel.org> | 2023-09-15 05:52:49 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-04 20:32:30 +0300 |
| commit | ace30fb21af5f1be1605db72c16040b95b1557ef (patch) | |
| tree | 354827f4ddb7ae02ee231fd953c83752b3236eb0 /mm/damon/paddr.c | |
| parent | 80333828ea7728ebe85d079bb5c1467eb9fc6c8c (diff) | |
| download | linux-ace30fb21af5f1be1605db72c16040b95b1557ef.tar.xz | |
mm/damon/core: use pseudo-moving sum for nr_accesses_bp
Let nr_accesses_bp be calculated as a pseudo-moving sum that updated for
every sampling interval, using damon_moving_sum(). This is assumed to be
useful for cases that the aggregation interval is set quite huge, but the
monivoting results need to be collected earlier than next aggregation
interval is passed.
Link: https://lkml.kernel.org/r/20230915025251.72816-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon/paddr.c')
| -rw-r--r-- | mm/damon/paddr.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 44f21860b555..081e2a325778 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -148,7 +148,8 @@ out: return accessed; } -static void __damon_pa_check_access(struct damon_region *r) +static void __damon_pa_check_access(struct damon_region *r, + struct damon_attrs *attrs) { static unsigned long last_addr; static unsigned long last_folio_sz = PAGE_SIZE; @@ -157,12 +158,12 @@ static void __damon_pa_check_access(struct damon_region *r) /* If the region is in the last checked page, reuse the result */ if (ALIGN_DOWN(last_addr, last_folio_sz) == ALIGN_DOWN(r->sampling_addr, last_folio_sz)) { - damon_update_region_access_rate(r, last_accessed); + damon_update_region_access_rate(r, last_accessed, attrs); return; } last_accessed = damon_pa_young(r->sampling_addr, &last_folio_sz); - damon_update_region_access_rate(r, last_accessed); + damon_update_region_access_rate(r, last_accessed, attrs); last_addr = r->sampling_addr; } @@ -175,7 +176,7 @@ static unsigned int damon_pa_check_accesses(struct damon_ctx *ctx) damon_for_each_target(t, ctx) { damon_for_each_region(r, t) { - __damon_pa_check_access(r); + __damon_pa_check_access(r, &ctx->attrs); max_nr_accesses = max(r->nr_accesses, max_nr_accesses); } } |