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mm: add pcp high_min high_max to proc zoneinfo

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When we do not set percpu_pagelist_high_fraction the kernel will compute
the pcp high_min/max by itself, which makes it hard to determine the
current high_min/max values.

So output the pcp high_min/max values to /proc/zoneinfo.

Link: https://lkml.kernel.org/r/20241010120935.656619-1-mengensun@tencent.com
Signed-off-by: MengEn Sun <mengensun@tencent.com>
Reviewed-by: Jinliang Zheng <alexjlzheng@tencent.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
MengEn Sun 2024-10-10 20:09:36 +08:00 committed by Andrew Morton
parent 002c5d1ca8
commit f8780515fe
1 changed files with 8 additions and 4 deletions
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12
mm/vmstat.c
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@ -1791,13 +1791,17 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
pcp = per_cpu_ptr(zone->per_cpu_pageset, i);
seq_printf(m,
"\n cpu: %i"
"\n count: %i"
"\n high: %i"
"\n batch: %i",
"\n count: %i"
"\n high: %i"
"\n batch: %i"
"\n high_min: %i"
"\n high_max: %i",
i,
pcp->count,
pcp->high,
pcp->batch);
pcp->batch,
pcp->high_min,
pcp->high_max);
#ifdef CONFIG_SMP
pzstats = per_cpu_ptr(zone->per_cpu_zonestats, i);
seq_printf(m, "\n vm stats threshold: %d",