From: SeongJae Park <sj@kernel.org>
To: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Cc: SeongJae Park <sj@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Brendan Jackman <jackmanb@google.com>,
Johannes Weiner <hannes@cmpxchg.org>, Zi Yan <ziy@nvidia.com>,
Minchan Kim <minchan@kernel.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Yosry Ahmed <yosry.ahmed@linux.dev>,
Nhat Pham <nphamcs@gmail.com>,
Chengming Zhou <chengming.zhou@linux.dev>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-dev@igalia.com
Subject: Re: [PATCH v2] mm: show_mem: show number of zspages in show_free_areas
Date: Tue, 2 Sep 2025 18:31:00 -0700 [thread overview]
Message-ID: <20250903013100.190488-1-sj@kernel.org> (raw)
In-Reply-To: <20250902-show_mem_zspages-v2-1-545daaa8b410@igalia.com>
On Tue, 2 Sep 2025 09:49:21 -0300 Thadeu Lima de Souza Cascardo <cascardo@igalia.com> wrote:
> When OOM is triggered, it will show where the pages might be for each zone.
> When using zram or zswap, it might look like lots of pages are missing.
> After this patch, zspages are shown as below.
>
> [ 48.792859] Node 0 DMA free:2812kB boost:0kB min:60kB low:72kB high:84kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:11160kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> [ 48.792962] lowmem_reserve[]: 0 956 956 956 956
> [ 48.792988] Node 0 DMA32 free:3512kB boost:0kB min:3912kB low:4888kB high:5864kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:28kB active_file:8kB inactive_file:16kB unevictable:0kB writepending:0kB zspages:916780kB present:1032064kB managed:978944kB mlocked:0kB bounce:0kB free_pcp:500kB local_pcp:248kB free_cma:0kB
> [ 48.793118] lowmem_reserve[]: 0 0 0 0 0
>
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Acked-by: SeongJae Park <sj@kernel.org>
Thanks,
SJ
[...]
next prev parent reply other threads:[~2025-09-03 1:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 12:49 [PATCH v2] mm: show_mem: show number of zspages in show_free_areas Thadeu Lima de Souza Cascardo
2025-09-02 13:12 ` Lorenzo Stoakes
2025-09-02 13:54 ` Vlastimil Babka
2025-09-02 16:01 ` Zi Yan
2025-09-03 1:31 ` SeongJae Park [this message]
2025-09-03 1:39 ` Chengming Zhou
2025-09-04 6:39 ` Johannes Weiner
2025-09-04 6:44 ` Sergey Senozhatsky
2025-09-05 17:46 ` Nhat Pham
2025-09-05 17:43 ` Nhat Pham
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