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Commit f715e6f1 authored by Christoph Lameter's avatar Christoph Lameter Committed by Pekka Enberg
Browse files

slabinfo: Support printout of the number of fallbacks 



Add functionality to slabinfo to print out the number of fallbacks
that have occurred for each slab cache when the -D option is specified.
Also widen the allocation / free field since the numbers became
too big after a week.

Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
Signed-off-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
parent 0121c619

Documentation/vm/slabinfo.c

+6 −4
Original line number Diff line number Diff line
@@ -38,7 +38,7 @@ struct slabinfo { 
	unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill;

	unsigned long cpuslab_flush, deactivate_full, deactivate_empty;

	unsigned long deactivate_to_head, deactivate_to_tail;

	unsigned long deactivate_remote_frees;

	unsigned long deactivate_remote_frees, order_fallback;

	int numa[MAX_NODES];

	int numa_partial[MAX_NODES];

} slabinfo[MAX_SLABS];
@@ -293,7 +293,7 @@ int line = 0; 
void first_line(void)

{

	if (show_activity)

		printf("Name                   Objects    Alloc     Free   %%Fast\n");

		printf("Name                   Objects      Alloc       Free   %%Fast Fallb O\n");

	else

		printf("Name                   Objects Objsize    Space "

			"Slabs/Part/Cpu  O/S O %%Fr %%Ef Flg\n");
@@ -573,11 +573,12 @@ void slabcache(struct slabinfo *s) 
		total_alloc = s->alloc_fastpath + s->alloc_slowpath;

		total_free = s->free_fastpath + s->free_slowpath;



		printf("%-21s %8ld %8ld %8ld %3ld %3ld \n",

		printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",

			s->name, s->objects,

			total_alloc, total_free,

			total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,

			total_free ? (s->free_fastpath * 100 / total_free) : 0);

			total_free ? (s->free_fastpath * 100 / total_free) : 0,

			s->order_fallback, s->order);

	}

	else

		printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
@@ -1188,6 +1189,7 @@ void read_slab_dir(void) 
			slab->deactivate_to_head = get_obj("deactivate_to_head");

			slab->deactivate_to_tail = get_obj("deactivate_to_tail");

			slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");

			slab->order_fallback = get_obj("order_fallback");

			chdir("..");

			if (slab->name[0] == ':')

				alias_targets++;