X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=Documentation%2Fvm%2Fslabinfo.c;h=df3227605d59bf594c3a962a7bf08d9e8d5097a9;hb=acee709cab689ec7703770e8b8cb5cc3a4abcb31;hp=41710ccf3a29a1f138537de5c96d00f429289096;hpb=c09d87517298fd01543739ba26987645deb4e6a9;p=safe%2Fjmp%2Flinux-2.6

diff --git a/Documentation/vm/slabinfo.c b/Documentation/vm/slabinfo.c
index 41710cc..df32276 100644
--- a/Documentation/vm/slabinfo.c
+++ b/Documentation/vm/slabinfo.c
@@ -1,7 +1,7 @@
 /*
  * Slabinfo: Tool to get reports about slabs
  *
- * (C) 2007 sgi, Christoph Lameter <clameter@sgi.com>
+ * (C) 2007 sgi, Christoph Lameter
  *
  * Compile by:
  *
@@ -11,11 +11,13 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #include <dirent.h>
+#include <strings.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdarg.h>
 #include <getopt.h>
 #include <regex.h>
+#include <errno.h>
 
 #define MAX_SLABS 500
 #define MAX_ALIASES 500
@@ -29,7 +31,14 @@ struct slabinfo {
 	int hwcache_align, object_size, objs_per_slab;
 	int sanity_checks, slab_size, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
-	unsigned long partial, objects, slabs;
+	unsigned long partial, objects, slabs, objects_partial, objects_total;
+	unsigned long alloc_fastpath, alloc_slowpath;
+	unsigned long free_fastpath, free_slowpath;
+	unsigned long free_frozen, free_add_partial, free_remove_partial;
+	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, order_fallback;
 	int numa[MAX_NODES];
 	int numa_partial[MAX_NODES];
 } slabinfo[MAX_SLABS];
@@ -41,12 +50,15 @@ struct aliasinfo {
 } aliasinfo[MAX_ALIASES];
 
 int slabs = 0;
+int actual_slabs = 0;
 int aliases = 0;
 int alias_targets = 0;
 int highest_node = 0;
 
 char buffer[4096];
 
+int show_empty = 0;
+int show_report = 0;
 int show_alias = 0;
 int show_slab = 0;
 int skip_zero = 1;
@@ -59,6 +71,17 @@ int show_inverted = 0;
 int show_single_ref = 0;
 int show_totals = 0;
 int sort_size = 0;
+int sort_active = 0;
+int set_debug = 0;
+int show_ops = 0;
+int show_activity = 0;
+
+/* Debug options */
+int sanity = 0;
+int redzone = 0;
+int poison = 0;
+int tracking = 0;
+int tracing = 0;
 
 int page_size;
 
@@ -71,36 +94,51 @@ void fatal(const char *x, ...)
 	va_start(ap, x);
 	vfprintf(stderr, x, ap);
 	va_end(ap);
-	exit(1);
+	exit(EXIT_FAILURE);
 }
 
 void usage(void)
 {
-	printf("slabinfo [-ahnpvtsz] [slab-regexp]\n"
+	printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
+		"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
 		"-a|--aliases           Show aliases\n"
+		"-A|--activity          Most active slabs first\n"
+		"-d<options>|--debug=<options> Set/Clear Debug options\n"
+		"-D|--display-active    Switch line format to activity\n"
+		"-e|--empty             Show empty slabs\n"
+		"-f|--first-alias       Show first alias\n"
 		"-h|--help              Show usage information\n"
+		"-i|--inverted          Inverted list\n"
+		"-l|--slabs             Show slabs\n"
 		"-n|--numa              Show NUMA information\n"
+		"-o|--ops		Show kmem_cache_ops\n"
 		"-s|--shrink            Shrink slabs\n"
-		"-v|--validate          Validate slabs\n"
+		"-r|--report		Detailed report on single slabs\n"
+		"-S|--Size              Sort by size\n"
 		"-t|--tracking          Show alloc/free information\n"
 		"-T|--Totals            Show summary information\n"
-		"-l|--slabs             Show slabs\n"
-		"-S|--Size              Sort by size\n"
+		"-v|--validate          Validate slabs\n"
 		"-z|--zero              Include empty slabs\n"
-		"-f|--first-alias       Show first alias\n"
-		"-i|--inverted          Inverted list\n"
 		"-1|--1ref              Single reference\n"
+		"\nValid debug options (FZPUT may be combined)\n"
+		"a / A          Switch on all debug options (=FZUP)\n"
+		"-              Switch off all debug options\n"
+		"f / F          Sanity Checks (SLAB_DEBUG_FREE)\n"
+		"z / Z          Redzoning\n"
+		"p / P          Poisoning\n"
+		"u / U          Tracking\n"
+		"t / T          Tracing\n"
 	);
 }
 
-unsigned long read_obj(char *name)
+unsigned long read_obj(const char *name)
 {
 	FILE *f = fopen(name, "r");
 
 	if (!f)
 		buffer[0] = 0;
 	else {
-		if (!fgets(buffer,sizeof(buffer), f))
+		if (!fgets(buffer, sizeof(buffer), f))
 			buffer[0] = 0;
 		fclose(f);
 		if (buffer[strlen(buffer)] == '\n')
@@ -113,7 +151,7 @@ unsigned long read_obj(char *name)
 /*
  * Get the contents of an attribute
  */
-unsigned long get_obj(char *name)
+unsigned long get_obj(const char *name)
 {
 	if (!read_obj(name))
 		return 0;
@@ -121,7 +159,7 @@ unsigned long get_obj(char *name)
 	return atol(buffer);
 }
 
-unsigned long get_obj_and_str(char *name, char **x)
+unsigned long get_obj_and_str(const char *name, char **x)
 {
 	unsigned long result = 0;
 	char *p;
@@ -140,14 +178,13 @@ unsigned long get_obj_and_str(char *name, char **x)
 	return result;
 }
 
-void set_obj(struct slabinfo *s, char *name, int n)
+void set_obj(struct slabinfo *s, const char *name, int n)
 {
 	char x[100];
+	FILE *f;
 
-	sprintf(x, "%s/%s", s->name, name);
-
-	FILE *f = fopen(x, "w");
-
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "w");
 	if (!f)
 		fatal("Cannot write to %s\n", x);
 
@@ -155,6 +192,26 @@ void set_obj(struct slabinfo *s, char *name, int n)
 	fclose(f);
 }
 
+unsigned long read_slab_obj(struct slabinfo *s, const char *name)
+{
+	char x[100];
+	FILE *f;
+	size_t l;
+
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "r");
+	if (!f) {
+		buffer[0] = 0;
+		l = 0;
+	} else {
+		l = fread(buffer, 1, sizeof(buffer), f);
+		buffer[l] = 0;
+		fclose(f);
+	}
+	return l;
+}
+
+
 /*
  * Put a size string together
  */
@@ -197,6 +254,9 @@ void decode_numa_list(int *numa, char *t)
 
 	memset(numa, 0, MAX_NODES * sizeof(int));
 
+	if (!t)
+		return;
+
 	while (*t == 'N') {
 		t++;
 		node = strtoul(t, &t, 10);
@@ -214,11 +274,17 @@ void decode_numa_list(int *numa, char *t)
 
 void slab_validate(struct slabinfo *s)
 {
+	if (strcmp(s->name, "*") == 0)
+		return;
+
 	set_obj(s, "validate", 1);
 }
 
 void slab_shrink(struct slabinfo *s)
 {
+	if (strcmp(s->name, "*") == 0)
+		return;
+
 	set_obj(s, "shrink", 1);
 }
 
@@ -226,8 +292,11 @@ int line = 0;
 
 void first_line(void)
 {
-	printf("Name                 Objects   Objsize    Space "
-		"Slabs/Part/Cpu  O/S O %%Fr %%Ef Flg\n");
+	if (show_activity)
+		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");
 }
 
 /*
@@ -246,10 +315,7 @@ struct aliasinfo *find_one_alias(struct slabinfo *find)
 					return best;
 			}
 	}
-	if (best)
-		return best;
-	fatal("Cannot find alias for %s\n", find->name);
-	return NULL;
+	return best;
 }
 
 unsigned long slab_size(struct slabinfo *s)
@@ -257,6 +323,200 @@ unsigned long slab_size(struct slabinfo *s)
 	return 	s->slabs * (page_size << s->order);
 }
 
+unsigned long slab_activity(struct slabinfo *s)
+{
+	return 	s->alloc_fastpath + s->free_fastpath +
+		s->alloc_slowpath + s->free_slowpath;
+}
+
+void slab_numa(struct slabinfo *s, int mode)
+{
+	int node;
+
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (!highest_node) {
+		printf("\n%s: No NUMA information available.\n", s->name);
+		return;
+	}
+
+	if (skip_zero && !s->slabs)
+		return;
+
+	if (!line) {
+		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
+		for(node = 0; node <= highest_node; node++)
+			printf(" %4d", node);
+		printf("\n----------------------");
+		for(node = 0; node <= highest_node; node++)
+			printf("-----");
+		printf("\n");
+	}
+	printf("%-21s ", mode ? "All slabs" : s->name);
+	for(node = 0; node <= highest_node; node++) {
+		char b[20];
+
+		store_size(b, s->numa[node]);
+		printf(" %4s", b);
+	}
+	printf("\n");
+	if (mode) {
+		printf("%-21s ", "Partial slabs");
+		for(node = 0; node <= highest_node; node++) {
+			char b[20];
+
+			store_size(b, s->numa_partial[node]);
+			printf(" %4s", b);
+		}
+		printf("\n");
+	}
+	line++;
+}
+
+void show_tracking(struct slabinfo *s)
+{
+	printf("\n%s: Kernel object allocation\n", s->name);
+	printf("-----------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "alloc_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+	printf("\n%s: Kernel object freeing\n", s->name);
+	printf("------------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "free_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+}
+
+void ops(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (read_slab_obj(s, "ops")) {
+		printf("\n%s: kmem_cache operations\n", s->name);
+		printf("--------------------------------------------\n");
+		printf(buffer);
+	} else
+		printf("\n%s has no kmem_cache operations\n", s->name);
+}
+
+const char *onoff(int x)
+{
+	if (x)
+		return "On ";
+	return "Off";
+}
+
+void slab_stats(struct slabinfo *s)
+{
+	unsigned long total_alloc;
+	unsigned long total_free;
+	unsigned long total;
+
+	if (!s->alloc_slab)
+		return;
+
+	total_alloc = s->alloc_fastpath + s->alloc_slowpath;
+	total_free = s->free_fastpath + s->free_slowpath;
+
+	if (!total_alloc)
+		return;
+
+	printf("\n");
+	printf("Slab Perf Counter       Alloc     Free %%Al %%Fr\n");
+	printf("--------------------------------------------------\n");
+	printf("Fastpath             %8lu %8lu %3lu %3lu\n",
+		s->alloc_fastpath, s->free_fastpath,
+		s->alloc_fastpath * 100 / total_alloc,
+		s->free_fastpath * 100 / total_free);
+	printf("Slowpath             %8lu %8lu %3lu %3lu\n",
+		total_alloc - s->alloc_fastpath, s->free_slowpath,
+		(total_alloc - s->alloc_fastpath) * 100 / total_alloc,
+		s->free_slowpath * 100 / total_free);
+	printf("Page Alloc           %8lu %8lu %3lu %3lu\n",
+		s->alloc_slab, s->free_slab,
+		s->alloc_slab * 100 / total_alloc,
+		s->free_slab * 100 / total_free);
+	printf("Add partial          %8lu %8lu %3lu %3lu\n",
+		s->deactivate_to_head + s->deactivate_to_tail,
+		s->free_add_partial,
+		(s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc,
+		s->free_add_partial * 100 / total_free);
+	printf("Remove partial       %8lu %8lu %3lu %3lu\n",
+		s->alloc_from_partial, s->free_remove_partial,
+		s->alloc_from_partial * 100 / total_alloc,
+		s->free_remove_partial * 100 / total_free);
+
+	printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n",
+		s->deactivate_remote_frees, s->free_frozen,
+		s->deactivate_remote_frees * 100 / total_alloc,
+		s->free_frozen * 100 / total_free);
+
+	printf("Total                %8lu %8lu\n\n", total_alloc, total_free);
+
+	if (s->cpuslab_flush)
+		printf("Flushes %8lu\n", s->cpuslab_flush);
+
+	if (s->alloc_refill)
+		printf("Refill %8lu\n", s->alloc_refill);
+
+	total = s->deactivate_full + s->deactivate_empty +
+			s->deactivate_to_head + s->deactivate_to_tail;
+
+	if (total)
+		printf("Deactivate Full=%lu(%lu%%) Empty=%lu(%lu%%) "
+			"ToHead=%lu(%lu%%) ToTail=%lu(%lu%%)\n",
+			s->deactivate_full, (s->deactivate_full * 100) / total,
+			s->deactivate_empty, (s->deactivate_empty * 100) / total,
+			s->deactivate_to_head, (s->deactivate_to_head * 100) / total,
+			s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total);
+}
+
+void report(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	printf("\nSlabcache: %-20s  Aliases: %2d Order : %2d Objects: %lu\n",
+		s->name, s->aliases, s->order, s->objects);
+	if (s->hwcache_align)
+		printf("** Hardware cacheline aligned\n");
+	if (s->cache_dma)
+		printf("** Memory is allocated in a special DMA zone\n");
+	if (s->destroy_by_rcu)
+		printf("** Slabs are destroyed via RCU\n");
+	if (s->reclaim_account)
+		printf("** Reclaim accounting active\n");
+
+	printf("\nSizes (bytes)     Slabs              Debug                Memory\n");
+	printf("------------------------------------------------------------------------\n");
+	printf("Object : %7d  Total  : %7ld   Sanity Checks : %s  Total: %7ld\n",
+			s->object_size, s->slabs, onoff(s->sanity_checks),
+			s->slabs * (page_size << s->order));
+	printf("SlabObj: %7d  Full   : %7ld   Redzoning     : %s  Used : %7ld\n",
+			s->slab_size, s->slabs - s->partial - s->cpu_slabs,
+			onoff(s->red_zone), s->objects * s->object_size);
+	printf("SlabSiz: %7d  Partial: %7ld   Poisoning     : %s  Loss : %7ld\n",
+			page_size << s->order, s->partial, onoff(s->poison),
+			s->slabs * (page_size << s->order) - s->objects * s->object_size);
+	printf("Loss   : %7d  CpuSlab: %7d   Tracking      : %s  Lalig: %7ld\n",
+			s->slab_size - s->object_size, s->cpu_slabs, onoff(s->store_user),
+			(s->slab_size - s->object_size) * s->objects);
+	printf("Align  : %7d  Objects: %7d   Tracing       : %s  Lpadd: %7ld\n",
+			s->align, s->objs_per_slab, onoff(s->trace),
+			((page_size << s->order) - s->objs_per_slab * s->slab_size) *
+			s->slabs);
+
+	ops(s);
+	show_tracking(s);
+	slab_numa(s, 1);
+	slab_stats(s);
+}
 
 void slabcache(struct slabinfo *s)
 {
@@ -265,11 +525,23 @@ void slabcache(struct slabinfo *s)
 	char flags[20];
 	char *p = flags;
 
-	if (skip_zero && !s->slabs)
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (actual_slabs == 1) {
+		report(s);
+		return;
+	}
+
+	if (skip_zero && !show_empty && !s->slabs)
+		return;
+
+	if (show_empty && s->slabs)
 		return;
 
 	store_size(size_str, slab_size(s));
-	sprintf(dist_str,"%lu/%lu/%d", s->slabs, s->partial, s->cpu_slabs);
+	snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
+						s->partial, s->cpu_slabs);
 
 	if (!line++)
 		first_line();
@@ -294,57 +566,155 @@ void slabcache(struct slabinfo *s)
 		*p++ = 'T';
 
 	*p = 0;
-	printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
-		s->name, s->objects, s->object_size, size_str, dist_str,
-		s->objs_per_slab, s->order,
-		s->slabs ? (s->partial * 100) / s->slabs : 100,
-		s->slabs ? (s->objects * s->object_size * 100) /
-			(s->slabs * (page_size << s->order)) : 100,
-		flags);
+	if (show_activity) {
+		unsigned long total_alloc;
+		unsigned long total_free;
+
+		total_alloc = s->alloc_fastpath + s->alloc_slowpath;
+		total_free = s->free_fastpath + s->free_slowpath;
+
+		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,
+			s->order_fallback, s->order);
+	}
+	else
+		printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
+			s->name, s->objects, s->object_size, size_str, dist_str,
+			s->objs_per_slab, s->order,
+			s->slabs ? (s->partial * 100) / s->slabs : 100,
+			s->slabs ? (s->objects * s->object_size * 100) /
+				(s->slabs * (page_size << s->order)) : 100,
+			flags);
 }
 
-void slab_numa(struct slabinfo *s)
+/*
+ * Analyze debug options. Return false if something is amiss.
+ */
+int debug_opt_scan(char *opt)
 {
-	int node;
+	if (!opt || !opt[0] || strcmp(opt, "-") == 0)
+		return 1;
+
+	if (strcasecmp(opt, "a") == 0) {
+		sanity = 1;
+		poison = 1;
+		redzone = 1;
+		tracking = 1;
+		return 1;
+	}
 
-	if (!highest_node)
-		fatal("No NUMA information available.\n");
+	for ( ; *opt; opt++)
+	 	switch (*opt) {
+		case 'F' : case 'f':
+			if (sanity)
+				return 0;
+			sanity = 1;
+			break;
+		case 'P' : case 'p':
+			if (poison)
+				return 0;
+			poison = 1;
+			break;
 
-	if (skip_zero && !s->slabs)
-		return;
+		case 'Z' : case 'z':
+			if (redzone)
+				return 0;
+			redzone = 1;
+			break;
 
-	if (!line) {
-		printf("\nSlab             Node ");
-		for(node = 0; node <= highest_node; node++)
-			printf(" %4d", node);
-		printf("\n----------------------");
-		for(node = 0; node <= highest_node; node++)
-			printf("-----");
-		printf("\n");
-	}
-	printf("%-21s ", s->name);
-	for(node = 0; node <= highest_node; node++) {
-		char b[20];
+		case 'U' : case 'u':
+			if (tracking)
+				return 0;
+			tracking = 1;
+			break;
 
-		store_size(b, s->numa[node]);
-		printf(" %4s", b);
-	}
-	printf("\n");
-	line++;
+		case 'T' : case 't':
+			if (tracing)
+				return 0;
+			tracing = 1;
+			break;
+		default:
+			return 0;
+		}
+	return 1;
 }
 
-void show_tracking(struct slabinfo *s)
+int slab_empty(struct slabinfo *s)
 {
-	printf("\n%s: Calls to allocate a slab object\n", s->name);
-	printf("---------------------------------------------------\n");
-	if (read_obj("alloc_calls"))
-		printf(buffer);
+	if (s->objects > 0)
+		return 0;
 
-	printf("%s: Calls to free a slab object\n", s->name);
-	printf("-----------------------------------------------\n");
-	if (read_obj("free_calls"))
-		printf(buffer);
+	/*
+	 * We may still have slabs even if there are no objects. Shrinking will
+	 * remove them.
+	 */
+	if (s->slabs != 0)
+		set_obj(s, "shrink", 1);
 
+	return 1;
+}
+
+void slab_debug(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (sanity && !s->sanity_checks) {
+		set_obj(s, "sanity", 1);
+	}
+	if (!sanity && s->sanity_checks) {
+		if (slab_empty(s))
+			set_obj(s, "sanity", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable sanity checks\n", s->name);
+	}
+	if (redzone && !s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name);
+	}
+	if (!redzone && s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name);
+	}
+	if (poison && !s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name);
+	}
+	if (!poison && s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name);
+	}
+	if (tracking && !s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable tracking\n", s->name);
+	}
+	if (!tracking && s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable tracking\n", s->name);
+	}
+	if (tracing && !s->trace) {
+		if (slabs == 1)
+			set_obj(s, "trace", 1);
+		else
+			fprintf(stderr, "%s can only enable trace for one slab at a time\n", s->name);
+	}
+	if (!tracing && s->trace)
+		set_obj(s, "trace", 1);
 }
 
 void totals(void)
@@ -408,7 +778,6 @@ void totals(void)
 		unsigned long used;
 		unsigned long long wasted;
 		unsigned long long objwaste;
-		long long objects_in_partial_slabs;
 		unsigned long percentage_partial_slabs;
 		unsigned long percentage_partial_objs;
 
@@ -422,18 +791,11 @@ void totals(void)
 		wasted = size - used;
 		objwaste = s->slab_size - s->object_size;
 
-		objects_in_partial_slabs = s->objects -
-			(s->slabs - s->partial - s ->cpu_slabs) *
-			s->objs_per_slab;
-
-		if (objects_in_partial_slabs < 0)
-			objects_in_partial_slabs = 0;
-
 		percentage_partial_slabs = s->partial * 100 / s->slabs;
 		if (percentage_partial_slabs > 100)
 			percentage_partial_slabs = 100;
 
-		percentage_partial_objs = objects_in_partial_slabs * 100
+		percentage_partial_objs = s->objects_partial * 100
 							/ s->objects;
 
 		if (percentage_partial_objs > 100)
@@ -455,8 +817,8 @@ void totals(void)
 			min_objects = s->objects;
 		if (used < min_used)
 			min_used = used;
-		if (objects_in_partial_slabs < min_partobj)
-			min_partobj = objects_in_partial_slabs;
+		if (s->objects_partial < min_partobj)
+			min_partobj = s->objects_partial;
 		if (percentage_partial_slabs < min_ppart)
 			min_ppart = percentage_partial_slabs;
 		if (percentage_partial_objs < min_ppartobj)
@@ -480,8 +842,8 @@ void totals(void)
 			max_objects = s->objects;
 		if (used > max_used)
 			max_used = used;
-		if (objects_in_partial_slabs > max_partobj)
-			max_partobj = objects_in_partial_slabs;
+		if (s->objects_partial > max_partobj)
+			max_partobj = s->objects_partial;
 		if (percentage_partial_slabs > max_ppart)
 			max_ppart = percentage_partial_slabs;
 		if (percentage_partial_objs > max_ppartobj)
@@ -496,7 +858,7 @@ void totals(void)
 
 		total_objects += s->objects;
 		total_used += used;
-		total_partobj += objects_in_partial_slabs;
+		total_partobj += s->objects_partial;
 		total_ppart += percentage_partial_slabs;
 		total_ppartobj += percentage_partial_objs;
 
@@ -538,11 +900,11 @@ void totals(void)
 
 	store_size(b1, total_size);store_size(b2, total_waste);
 	store_size(b3, total_waste * 100 / total_used);
-	printf("Memory used: %6s   # Loss   : %6s   MRatio: %6s%%\n", b1, b2, b3);
+	printf("Memory used: %6s   # Loss   : %6s   MRatio:%6s%%\n", b1, b2, b3);
 
 	store_size(b1, total_objects);store_size(b2, total_partobj);
 	store_size(b3, total_partobj * 100 / total_objects);
-	printf("# Objects  : %6s   # PartObj: %6s   ORatio: %6s%%\n", b1, b2, b3);
+	printf("# Objects  : %6s   # PartObj: %6s   ORatio:%6s%%\n", b1, b2, b3);
 
 	printf("\n");
 	printf("Per Cache    Average         Min         Max       Total\n");
@@ -565,7 +927,7 @@ void totals(void)
 	store_size(b1, avg_ppart);store_size(b2, min_ppart);
 	store_size(b3, max_ppart);
 	store_size(b4, total_partial * 100  / total_slabs);
-	printf("%%PartSlab %10s%% %10s%% %10s%% %10s%%\n",
+	printf("%%PartSlab%10s%% %10s%% %10s%% %10s%%\n",
 			b1,	b2,	b3,	b4);
 
 	store_size(b1, avg_partobj);store_size(b2, min_partobj);
@@ -577,7 +939,7 @@ void totals(void)
 	store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj);
 	store_size(b3, max_ppartobj);
 	store_size(b4, total_partobj * 100 / total_objects);
-	printf("%% PartObj %10s%% %10s%% %10s%% %10s%%\n",
+	printf("%% PartObj%10s%% %10s%% %10s%% %10s%%\n",
 			b1,	b2,	b3,	b4);
 
 	store_size(b1, avg_size);store_size(b2, min_size);
@@ -624,6 +986,8 @@ void sort_slabs(void)
 
 			if (sort_size)
 				result = slab_size(s1) < slab_size(s2);
+			else if (sort_active)
+				result = slab_activity(s1) < slab_activity(s2);
 			else
 				result = strcasecmp(s1->name, s2->name);
 
@@ -673,7 +1037,7 @@ void link_slabs(void)
 
 	for (a = aliasinfo; a < aliasinfo + aliases; a++) {
 
-		for(s = slabinfo; s < slabinfo + slabs; s++)
+		for (s = slabinfo; s < slabinfo + slabs; s++)
 			if (strcmp(a->ref, s->name) == 0) {
 				a->slab = s;
 				s->refs++;
@@ -704,7 +1068,7 @@ void alias(void)
 					continue;
 				}
 			}
-			printf("\n%-20s <- %s", a->slab->name, a->name);
+			printf("\n%-12s <- %s", a->slab->name, a->name);
 			active = a->slab->name;
 		}
 		else
@@ -729,7 +1093,12 @@ void rename_slabs(void)
 
 		a = find_one_alias(s);
 
-		s->name = a->name;
+		if (a)
+			s->name = a->name;
+		else {
+			s->name = "*";
+			actual_slabs--;
+		}
 	}
 }
 
@@ -748,11 +1117,14 @@ void read_slab_dir(void)
 	char *t;
 	int count;
 
+	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
+		fatal("SYSFS support for SLUB not active\n");
+
 	dir = opendir(".");
 	while ((de = readdir(dir))) {
 		if (de->d_name[0] == '.' ||
-				slab_mismatch(de->d_name))
-			continue;
+			(de->d_name[0] != ':' && slab_mismatch(de->d_name)))
+				continue;
 		switch (de->d_type) {
 		   case DT_LNK:
 		   	alias->name = strdup(de->d_name);
@@ -782,11 +1154,14 @@ void read_slab_dir(void)
 			slab->hwcache_align = get_obj("hwcache_align");
 			slab->object_size = get_obj("object_size");
 			slab->objects = get_obj("objects");
+			slab->objects_partial = get_obj("objects_partial");
+			slab->objects_total = get_obj("objects_total");
 			slab->objs_per_slab = get_obj("objs_per_slab");
 			slab->order = get_obj("order");
 			slab->partial = get_obj("partial");
 			slab->partial = get_obj_and_str("partial", &t);
 			decode_numa_list(slab->numa_partial, t);
+			free(t);
 			slab->poison = get_obj("poison");
 			slab->reclaim_account = get_obj("reclaim_account");
 			slab->red_zone = get_obj("red_zone");
@@ -794,8 +1169,27 @@ void read_slab_dir(void)
 			slab->slab_size = get_obj("slab_size");
 			slab->slabs = get_obj_and_str("slabs", &t);
 			decode_numa_list(slab->numa, t);
+			free(t);
 			slab->store_user = get_obj("store_user");
 			slab->trace = get_obj("trace");
+			slab->alloc_fastpath = get_obj("alloc_fastpath");
+			slab->alloc_slowpath = get_obj("alloc_slowpath");
+			slab->free_fastpath = get_obj("free_fastpath");
+			slab->free_slowpath = get_obj("free_slowpath");
+			slab->free_frozen= get_obj("free_frozen");
+			slab->free_add_partial = get_obj("free_add_partial");
+			slab->free_remove_partial = get_obj("free_remove_partial");
+			slab->alloc_from_partial = get_obj("alloc_from_partial");
+			slab->alloc_slab = get_obj("alloc_slab");
+			slab->alloc_refill = get_obj("alloc_refill");
+			slab->free_slab = get_obj("free_slab");
+			slab->cpuslab_flush = get_obj("cpuslab_flush");
+			slab->deactivate_full = get_obj("deactivate_full");
+			slab->deactivate_empty = get_obj("deactivate_empty");
+			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++;
@@ -807,6 +1201,7 @@ void read_slab_dir(void)
 	}
 	closedir(dir);
 	slabs = slab - slabinfo;
+	actual_slabs = slabs;
 	aliases = alias - aliasinfo;
 	if (slabs > MAX_SLABS)
 		fatal("Too many slabs\n");
@@ -825,34 +1220,41 @@ void output_slabs(void)
 
 
 		if (show_numa)
-			slab_numa(slab);
-		else
-		if (show_track)
+			slab_numa(slab, 0);
+		else if (show_track)
 			show_tracking(slab);
-		else
-		if (validate)
+		else if (validate)
 			slab_validate(slab);
-		else
-		if (shrink)
+		else if (shrink)
 			slab_shrink(slab);
-		else {
-			if (show_slab)
-				slabcache(slab);
-		}
+		else if (set_debug)
+			slab_debug(slab);
+		else if (show_ops)
+			ops(slab);
+		else if (show_slab)
+			slabcache(slab);
+		else if (show_report)
+			report(slab);
 	}
 }
 
 struct option opts[] = {
 	{ "aliases", 0, NULL, 'a' },
-	{ "slabs", 0, NULL, 'l' },
-	{ "numa", 0, NULL, 'n' },
-	{ "zero", 0, NULL, 'z' },
-	{ "help", 0, NULL, 'h' },
-	{ "validate", 0, NULL, 'v' },
+	{ "activity", 0, NULL, 'A' },
+	{ "debug", 2, NULL, 'd' },
+	{ "display-activity", 0, NULL, 'D' },
+	{ "empty", 0, NULL, 'e' },
 	{ "first-alias", 0, NULL, 'f' },
+	{ "help", 0, NULL, 'h' },
+	{ "inverted", 0, NULL, 'i'},
+	{ "numa", 0, NULL, 'n' },
+	{ "ops", 0, NULL, 'o' },
+	{ "report", 0, NULL, 'r' },
 	{ "shrink", 0, NULL, 's' },
+	{ "slabs", 0, NULL, 'l' },
 	{ "track", 0, NULL, 't'},
-	{ "inverted", 0, NULL, 'i'},
+	{ "validate", 0, NULL, 'v' },
+	{ "zero", 0, NULL, 'z' },
 	{ "1ref", 0, NULL, '1'},
 	{ NULL, 0, NULL, 0 }
 };
@@ -864,17 +1266,30 @@ int main(int argc, char *argv[])
 	char *pattern_source;
 
 	page_size = getpagesize();
-	if (chdir("/sys/slab"))
-		fatal("This kernel does not have SLUB support.\n");
 
-	while ((c = getopt_long(argc, argv, "afhil1npstvzTS", opts, NULL)) != -1)
-	switch(c) {
+	while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS",
+						opts, NULL)) != -1)
+		switch (c) {
 		case '1':
 			show_single_ref = 1;
 			break;
 		case 'a':
 			show_alias = 1;
 			break;
+		case 'A':
+			sort_active = 1;
+			break;
+		case 'd':
+			set_debug = 1;
+			if (!debug_opt_scan(optarg))
+				fatal("Invalid debug option '%s'\n", optarg);
+			break;
+		case 'D':
+			show_activity = 1;
+			break;
+		case 'e':
+			show_empty = 1;
+			break;
 		case 'f':
 			show_first_alias = 1;
 			break;
@@ -887,6 +1302,12 @@ int main(int argc, char *argv[])
 		case 'n':
 			show_numa = 1;
 			break;
+		case 'o':
+			show_ops = 1;
+			break;
+		case 'r':
+			show_report = 1;
+			break;
 		case 's':
 			shrink = 1;
 			break;
@@ -914,8 +1335,8 @@ int main(int argc, char *argv[])
 
 	}
 
-	if (!show_slab && !show_alias && !show_track
-		&& !validate && !shrink)
+	if (!show_slab && !show_alias && !show_track && !show_report
+		&& !validate && !shrink && !set_debug && !show_ops)
 			show_slab = 1;
 
 	if (argc > optind)