Messages in this thread Patch in this message | | | From | Sergey Senozhatsky <> | Subject | [PATCHv2 5/6] zsmalloc: extend compaction statistics | Date | Thu, 23 Feb 2023 12:04:50 +0900 |
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Extend zsmalloc zs_pool_stats with a new member that holds the number of objects pool compaction moved between pool pages.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> --- include/linux/zsmalloc.h | 2 ++ mm/zsmalloc.c | 1 + 2 files changed, 3 insertions(+)
diff --git a/include/linux/zsmalloc.h b/include/linux/zsmalloc.h index a48cd0ffe57d..8b3fa5b4a68c 100644 --- a/include/linux/zsmalloc.h +++ b/include/linux/zsmalloc.h @@ -36,6 +36,8 @@ enum zs_mapmode { struct zs_pool_stats { /* How many pages were migrated (freed) */ atomic_long_t pages_compacted; + /* How many objects were migrated during compaction */ + atomic_long_t objs_moved; }; struct zs_pool; diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index eacf9e32da5c..f7e69df48fb0 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1815,6 +1815,7 @@ static void migrate_zspage(struct zs_pool *pool, struct size_class *class, obj_idx++; record_obj(handle, free_obj); obj_free(class->size, used_obj, NULL); + atomic_long_inc(&pool->stats.objs_moved); } /* Remember last position in this iteration */ -- 2.39.2.637.g21b0678d19-goog
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