tools/mm/slabinfo.c

3  * Slabinfo: Tool to get reports about slabs
36 	unsigned long partial, objects, slabs, objects_partial, objects_total;
57 int slabs;
116 		"-A|--activity          Most active slabs first\n"
119 		"-e|--empty             Show empty slabs\n"
123 		"-l|--slabs             Show slabs\n"
126 		"-N|--lines=K           Show the first K slabs\n"
128 		"-P|--partial           Sort by number of partial slabs\n"
129 		"-r|--report            Detailed report on single slabs\n"
130 		"-s|--shrink            Shrink slabs\n"
134 		"-U|--Unreclaim         Show unreclaimable slabs only\n"
135 		"-v|--validate          Validate slabs\n"
137 		"-z|--zero              Include empty slabs\n"
369 	return 	s->slabs * (page_size << s->order);
395 	if (skip_zero && !s->slabs)
407 	printf("%-21s ", mode ? "All slabs" : s->name);
416 		printf("%-21s ", "Partial slabs");
573 			s->object_size, s->slabs, onoff(s->sanity_checks),
574 			s->slabs * (page_size << s->order));
576 			s->slab_size, s->slabs - s->partial - s->cpu_slabs,
580 			s->slabs * (page_size << s->order) - s->objects * s->object_size);
587 			s->slabs);
613 	if (skip_zero && !show_empty && !s->slabs)
616 	if (show_empty && s->slabs)
623 	snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
667 			s->slabs ? (s->partial * 100) / s->slabs : 100,
668 			s->slabs ? (s->objects * s->object_size * 100) /
669 				(s->slabs * (page_size << s->order)) : 100,
732 	 * We may still have slabs even if there are no objects. Shrinking will
735 	if (s->slabs != 0)
792 		if (slabs == 1)
812 	/* Number of partial slabs in a slabcache */
816 	/* Number of slabs in a slab cache */
844 	/* Percentage of partial slabs per slab */
848 	/* Number of objects in partial slabs */
857 	for (s = slabinfo; s < slabinfo + slabs; s++) {
865 		if (!s->slabs || !s->objects)
875 		percentage_partial_slabs = s->partial * 100 / s->slabs;
889 		if (s->slabs < min_slabs)
890 			min_slabs = s->slabs;
914 		if (s->slabs > max_slabs)
915 			max_slabs = s->slabs;
936 		total_slabs += s->slabs;
955 		printf("No slabs\n");
980 			slabs, aliases, alias_targets, used_slabs);
1068 	for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) {
1069 		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
1141 		for (s = slabinfo; s < slabinfo + slabs; s++)
1147 		if (s == slabinfo + slabs)
1188 	for (s = slabinfo; s < slabinfo + slabs; s++) {
1271 			slab->slabs = get_obj_and_str("slabs", &t);
1310 	slabs = slab - slabinfo;
1311 	actual_slabs = slabs;
1313 	if (slabs > MAX_SLABS)
1314 		fatal("Too many slabs\n");
1324 	for (slab = slabinfo; (slab < slabinfo + slabs) &&
1381 	heading = "\nSlabs sorted by number of partial slabs\n";
1398 	{ "slabs", no_argument, NULL, 'l' },