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c01e6df60e
Count how many swap I/Os we cause. Due to batching this can be different than the current counter number of pages written/read, and tracking this information is useful to see how efficient the batching is. The counters are added at the end of enum vm_event_item and the vmstat_text array under the assumption that the order of fields in /proc/vmstat is an ABI. If that is not the case, they could be grouped with the other swap counters. Link: https://lore.kernel.org/20260713093350.2154226-8-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nhat Pham <nphamcs@gmail.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Baoquan He <baoquan.he@linux.dev> Cc: Barry Song <baohua@kernel.org> Cc: Chris Li <chrisl@kernel.org> Cc: Kairui Song <kasong@tencent.com> Cc: Kemeng Shi <shikemeng@huaweicloud.com> Cc: Youngjun Park <youngjun.park@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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