[PATCH] add page_state info to show_mem

[PATCH] add page_state info to show_mem

[Martin J. Bligh]

This helps a lot when debugging out of memory stuff - useful especially
to see if all the memory is sucked into slab, etc.

diff -purN -X /home/mbligh/.diff.exclude 2.6.11/arch/i386/mm/pgtable.c 2.6.11-show_mem_slab/arch/i386/mm/pgtable.c
--- 2.6.11/arch/i386/mm/pgtable.c	2005-03-02 02:59:09.000000000 -0800
+++ 2.6.11-show_mem_slab/arch/i386/mm/pgtable.c	2005-05-31 15:58:36.000000000 -0700
@@ -30,6 +30,7 @@ void show_mem(void)
 	struct page *page;
 	pg_data_t *pgdat;
 	unsigned long i;
+	struct page_state ps;
 
 	printk("Mem-info:\n");
 	show_free_areas();
@@ -53,6 +54,13 @@ void show_mem(void)
 	printk("%d reserved pages\n",reserved);
 	printk("%d pages shared\n",shared);
 	printk("%d pages swap cached\n",cached);
+
+	get_page_state(&ps);
+	printk("%d pages dirty\n", ps.nr_dirty);
+	printk("%d pages writeback\n", ps.nr_writeback);
+	printk("%d pages mapped\n", ps.nr_mapped);
+	printk("%d pages slab\n", ps.nr_slab);
+	printk("%d pages pagetables\n", ps.nr_page_table_pages);
 }
 
 /*

Re: [PATCH] add page_state info to show_mem

[Anton Blanchard]

Hi,

> This helps a lot when debugging out of memory stuff - useful especially
> to see if all the memory is sucked into slab, etc.

I was going to add this to ppc64 but I noticed that except for HIGHMEM bits 
it all looks the same :) Perhaps show_mem should end up somewhere
common.

Anton

> diff -purN -X /home/mbligh/.diff.exclude 2.6.11/arch/i386/mm/pgtable.c 2.6.11-show_mem_slab/arch/i386/mm/pgtable.c
> --- 2.6.11/arch/i386/mm/pgtable.c	2005-03-02 02:59:09.000000000 -0800
> +++ 2.6.11-show_mem_slab/arch/i386/mm/pgtable.c	2005-05-31 15:58:36.000000000 -0700
> @@ -30,6 +30,7 @@ void show_mem(void)
>  	struct page *page;
>  	pg_data_t *pgdat;
>  	unsigned long i;
> +	struct page_state ps;
>  
>  	printk("Mem-info:\n");
>  	show_free_areas();
> @@ -53,6 +54,13 @@ void show_mem(void)
>  	printk("%d reserved pages\n",reserved);
>  	printk("%d pages shared\n",shared);
>  	printk("%d pages swap cached\n",cached);
> +
> +	get_page_state(&ps);
> +	printk("%d pages dirty\n", ps.nr_dirty);
> +	printk("%d pages writeback\n", ps.nr_writeback);
> +	printk("%d pages mapped\n", ps.nr_mapped);
> +	printk("%d pages slab\n", ps.nr_slab);
> +	printk("%d pages pagetables\n", ps.nr_page_table_pages);
>  }
>  
>  /*
> 
> -
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