summaryrefslogtreecommitdiffstats
path: root/kernel/tools/vm
diff options
context:
space:
mode:
authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/tools/vm
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/tools/vm')
-rw-r--r--kernel/tools/vm/page-types.c42
-rw-r--r--kernel/tools/vm/slabinfo-gnuplot.sh275
-rw-r--r--kernel/tools/vm/slabinfo.c255
3 files changed, 464 insertions, 108 deletions
diff --git a/kernel/tools/vm/page-types.c b/kernel/tools/vm/page-types.c
index 8bdf16b8b..5a6016224 100644
--- a/kernel/tools/vm/page-types.c
+++ b/kernel/tools/vm/page-types.c
@@ -42,7 +42,7 @@
#include <sys/mman.h>
#include "../../include/uapi/linux/magic.h"
#include "../../include/uapi/linux/kernel-page-flags.h"
-#include <api/fs/debugfs.h>
+#include <api/fs/fs.h>
#ifndef MAX_PATH
# define MAX_PATH 256
@@ -57,23 +57,15 @@
* pagemap kernel ABI bits
*/
-#define PM_ENTRY_BYTES sizeof(uint64_t)
-#define PM_STATUS_BITS 3
-#define PM_STATUS_OFFSET (64 - PM_STATUS_BITS)
-#define PM_STATUS_MASK (((1LL << PM_STATUS_BITS) - 1) << PM_STATUS_OFFSET)
-#define PM_STATUS(nr) (((nr) << PM_STATUS_OFFSET) & PM_STATUS_MASK)
-#define PM_PSHIFT_BITS 6
-#define PM_PSHIFT_OFFSET (PM_STATUS_OFFSET - PM_PSHIFT_BITS)
-#define PM_PSHIFT_MASK (((1LL << PM_PSHIFT_BITS) - 1) << PM_PSHIFT_OFFSET)
-#define __PM_PSHIFT(x) (((uint64_t) (x) << PM_PSHIFT_OFFSET) & PM_PSHIFT_MASK)
-#define PM_PFRAME_MASK ((1LL << PM_PSHIFT_OFFSET) - 1)
-#define PM_PFRAME(x) ((x) & PM_PFRAME_MASK)
-
-#define __PM_SOFT_DIRTY (1LL)
-#define PM_PRESENT PM_STATUS(4LL)
-#define PM_SWAP PM_STATUS(2LL)
-#define PM_SOFT_DIRTY __PM_PSHIFT(__PM_SOFT_DIRTY)
-
+#define PM_ENTRY_BYTES 8
+#define PM_PFRAME_BITS 55
+#define PM_PFRAME_MASK ((1LL << PM_PFRAME_BITS) - 1)
+#define PM_PFRAME(x) ((x) & PM_PFRAME_MASK)
+#define PM_SOFT_DIRTY (1ULL << 55)
+#define PM_MMAP_EXCLUSIVE (1ULL << 56)
+#define PM_FILE (1ULL << 61)
+#define PM_SWAP (1ULL << 62)
+#define PM_PRESENT (1ULL << 63)
/*
* kernel page flags
@@ -100,6 +92,8 @@
#define KPF_SLOB_FREE 49
#define KPF_SLUB_FROZEN 50
#define KPF_SLUB_DEBUG 51
+#define KPF_FILE 62
+#define KPF_MMAP_EXCLUSIVE 63
#define KPF_ALL_BITS ((uint64_t)~0ULL)
#define KPF_HACKERS_BITS (0xffffULL << 32)
@@ -134,6 +128,7 @@ static const char * const page_flag_names[] = {
[KPF_THP] = "t:thp",
[KPF_BALLOON] = "o:balloon",
[KPF_ZERO_PAGE] = "z:zero_page",
+ [KPF_IDLE] = "i:idle_page",
[KPF_RESERVED] = "r:reserved",
[KPF_MLOCKED] = "m:mlocked",
@@ -149,6 +144,9 @@ static const char * const page_flag_names[] = {
[KPF_SLOB_FREE] = "P:slob_free",
[KPF_SLUB_FROZEN] = "A:slub_frozen",
[KPF_SLUB_DEBUG] = "E:slub_debug",
+
+ [KPF_FILE] = "F:file",
+ [KPF_MMAP_EXCLUSIVE] = "1:mmap_exclusive",
};
@@ -191,7 +189,7 @@ static int kpageflags_fd;
static int opt_hwpoison;
static int opt_unpoison;
-static char *hwpoison_debug_fs;
+static const char *hwpoison_debug_fs;
static int hwpoison_inject_fd;
static int hwpoison_forget_fd;
@@ -452,6 +450,10 @@ static uint64_t expand_overloaded_flags(uint64_t flags, uint64_t pme)
if (pme & PM_SOFT_DIRTY)
flags |= BIT(SOFTDIRTY);
+ if (pme & PM_FILE)
+ flags |= BIT(FILE);
+ if (pme & PM_MMAP_EXCLUSIVE)
+ flags |= BIT(MMAP_EXCLUSIVE);
return flags;
}
@@ -486,7 +488,7 @@ static void prepare_hwpoison_fd(void)
{
char buf[MAX_PATH + 1];
- hwpoison_debug_fs = debugfs_mount(NULL);
+ hwpoison_debug_fs = debugfs__mount();
if (!hwpoison_debug_fs) {
perror("mount debugfs");
exit(EXIT_FAILURE);
diff --git a/kernel/tools/vm/slabinfo-gnuplot.sh b/kernel/tools/vm/slabinfo-gnuplot.sh
new file mode 100644
index 000000000..35b039864
--- /dev/null
+++ b/kernel/tools/vm/slabinfo-gnuplot.sh
@@ -0,0 +1,275 @@
+#!/bin/sh
+
+# Sergey Senozhatsky, 2015
+# sergey.senozhatsky.work@gmail.com
+#
+# This software is licensed under the terms of the GNU General Public
+# License version 2, as published by the Free Software Foundation, and
+# may be copied, distributed, and modified under those terms.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+
+# This program is intended to plot a `slabinfo -X' stats, collected,
+# for example, using the following command:
+# while [ 1 ]; do slabinfo -X >> stats; sleep 1; done
+#
+# Use `slabinfo-gnuplot.sh stats' to pre-process collected records
+# and generate graphs (totals, slabs sorted by size, slabs sorted
+# by size).
+#
+# Graphs can be [individually] regenerate with different ranges and
+# size (-r %d,%d and -s %d,%d options).
+#
+# To visually compare N `totals' graphs, do
+# slabinfo-gnuplot.sh -t FILE1-totals FILE2-totals ... FILEN-totals
+#
+
+min_slab_name_size=11
+xmin=0
+xmax=0
+width=1500
+height=700
+mode=preprocess
+
+usage()
+{
+ echo "Usage: [-s W,H] [-r MIN,MAX] [-t|-l] FILE1 [FILE2 ..]"
+ echo "FILEs must contain 'slabinfo -X' samples"
+ echo "-t - plot totals for FILE(s)"
+ echo "-l - plot slabs stats for FILE(s)"
+ echo "-s %d,%d - set image width and height"
+ echo "-r %d,%d - use data samples from a given range"
+}
+
+check_file_exist()
+{
+ if [ ! -f "$1" ]; then
+ echo "File '$1' does not exist"
+ exit 1
+ fi
+}
+
+do_slabs_plotting()
+{
+ local file=$1
+ local out_file
+ local range="every ::$xmin"
+ local xtic=""
+ local xtic_rotate="norotate"
+ local lines=2000000
+ local wc_lines
+
+ check_file_exist "$file"
+
+ out_file=`basename "$file"`
+ if [ $xmax -ne 0 ]; then
+ range="$range::$xmax"
+ lines=$((xmax-xmin))
+ fi
+
+ wc_lines=`cat "$file" | wc -l`
+ if [ $? -ne 0 ] || [ "$wc_lines" -eq 0 ] ; then
+ wc_lines=$lines
+ fi
+
+ if [ "$wc_lines" -lt "$lines" ]; then
+ lines=$wc_lines
+ fi
+
+ if [ $((width / lines)) -gt $min_slab_name_size ]; then
+ xtic=":xtic(1)"
+ xtic_rotate=90
+ fi
+
+gnuplot -p << EOF
+#!/usr/bin/env gnuplot
+
+set terminal png enhanced size $width,$height large
+set output '$out_file.png'
+set autoscale xy
+set xlabel 'samples'
+set ylabel 'bytes'
+set style histogram columnstacked title textcolor lt -1
+set style fill solid 0.15
+set xtics rotate $xtic_rotate
+set key left above Left title reverse
+
+plot "$file" $range u 2$xtic title 'SIZE' with boxes,\
+ '' $range u 3 title 'LOSS' with boxes
+EOF
+
+ if [ $? -eq 0 ]; then
+ echo "$out_file.png"
+ fi
+}
+
+do_totals_plotting()
+{
+ local gnuplot_cmd=""
+ local range="every ::$xmin"
+ local file=""
+
+ if [ $xmax -ne 0 ]; then
+ range="$range::$xmax"
+ fi
+
+ for i in "${t_files[@]}"; do
+ check_file_exist "$i"
+
+ file="$file"`basename "$i"`
+ gnuplot_cmd="$gnuplot_cmd '$i' $range using 1 title\
+ '$i Memory usage' with lines,"
+ gnuplot_cmd="$gnuplot_cmd '' $range using 2 title \
+ '$i Loss' with lines,"
+ done
+
+gnuplot -p << EOF
+#!/usr/bin/env gnuplot
+
+set terminal png enhanced size $width,$height large
+set autoscale xy
+set output '$file.png'
+set xlabel 'samples'
+set ylabel 'bytes'
+set key left above Left title reverse
+
+plot $gnuplot_cmd
+EOF
+
+ if [ $? -eq 0 ]; then
+ echo "$file.png"
+ fi
+}
+
+do_preprocess()
+{
+ local out
+ local lines
+ local in=$1
+
+ check_file_exist "$in"
+
+ # use only 'TOP' slab (biggest memory usage or loss)
+ let lines=3
+ out=`basename "$in"`"-slabs-by-loss"
+ `cat "$in" | grep -A "$lines" 'Slabs sorted by loss' |\
+ egrep -iv '\-\-|Name|Slabs'\
+ | awk '{print $1" "$4+$2*$3" "$4}' > "$out"`
+ if [ $? -eq 0 ]; then
+ do_slabs_plotting "$out"
+ fi
+
+ let lines=3
+ out=`basename "$in"`"-slabs-by-size"
+ `cat "$in" | grep -A "$lines" 'Slabs sorted by size' |\
+ egrep -iv '\-\-|Name|Slabs'\
+ | awk '{print $1" "$4" "$4-$2*$3}' > "$out"`
+ if [ $? -eq 0 ]; then
+ do_slabs_plotting "$out"
+ fi
+
+ out=`basename "$in"`"-totals"
+ `cat "$in" | grep "Memory used" |\
+ awk '{print $3" "$7}' > "$out"`
+ if [ $? -eq 0 ]; then
+ t_files[0]=$out
+ do_totals_plotting
+ fi
+}
+
+parse_opts()
+{
+ local opt
+
+ while getopts "tlr::s::h" opt; do
+ case $opt in
+ t)
+ mode=totals
+ ;;
+ l)
+ mode=slabs
+ ;;
+ s)
+ array=(${OPTARG//,/ })
+ width=${array[0]}
+ height=${array[1]}
+ ;;
+ r)
+ array=(${OPTARG//,/ })
+ xmin=${array[0]}
+ xmax=${array[1]}
+ ;;
+ h)
+ usage
+ exit 0
+ ;;
+ \?)
+ echo "Invalid option: -$OPTARG" >&2
+ exit 1
+ ;;
+ :)
+ echo "-$OPTARG requires an argument." >&2
+ exit 1
+ ;;
+ esac
+ done
+
+ return $OPTIND
+}
+
+parse_args()
+{
+ local idx=0
+ local p
+
+ for p in "$@"; do
+ case $mode in
+ preprocess)
+ files[$idx]=$p
+ idx=$idx+1
+ ;;
+ totals)
+ t_files[$idx]=$p
+ idx=$idx+1
+ ;;
+ slabs)
+ files[$idx]=$p
+ idx=$idx+1
+ ;;
+ esac
+ done
+}
+
+parse_opts "$@"
+argstart=$?
+parse_args "${@:$argstart}"
+
+if [ ${#files[@]} -eq 0 ] && [ ${#t_files[@]} -eq 0 ]; then
+ usage
+ exit 1
+fi
+
+case $mode in
+ preprocess)
+ for i in "${files[@]}"; do
+ do_preprocess "$i"
+ done
+ ;;
+ totals)
+ do_totals_plotting
+ ;;
+ slabs)
+ for i in "${files[@]}"; do
+ do_slabs_plotting "$i"
+ done
+ ;;
+ *)
+ echo "Unknown mode $mode" >&2
+ usage
+ exit 1
+ ;;
+esac
diff --git a/kernel/tools/vm/slabinfo.c b/kernel/tools/vm/slabinfo.c
index 808d5a9d5..86e698d07 100644
--- a/kernel/tools/vm/slabinfo.c
+++ b/kernel/tools/vm/slabinfo.c
@@ -53,39 +53,43 @@ struct aliasinfo {
struct slabinfo *slab;
} aliasinfo[MAX_ALIASES];
-int slabs = 0;
-int actual_slabs = 0;
-int aliases = 0;
-int alias_targets = 0;
-int highest_node = 0;
+int slabs;
+int actual_slabs;
+int aliases;
+int alias_targets;
+int highest_node;
char buffer[4096];
-int show_empty = 0;
-int show_report = 0;
-int show_alias = 0;
-int show_slab = 0;
+int show_empty;
+int show_report;
+int show_alias;
+int show_slab;
int skip_zero = 1;
-int show_numa = 0;
-int show_track = 0;
-int show_first_alias = 0;
-int validate = 0;
-int shrink = 0;
-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;
+int show_numa;
+int show_track;
+int show_first_alias;
+int validate;
+int shrink;
+int show_inverted;
+int show_single_ref;
+int show_totals;
+int sort_size;
+int sort_active;
+int set_debug;
+int show_ops;
+int show_activity;
+int output_lines = -1;
+int sort_loss;
+int extended_totals;
+int show_bytes;
/* Debug options */
-int sanity = 0;
-int redzone = 0;
-int poison = 0;
-int tracking = 0;
-int tracing = 0;
+int sanity;
+int redzone;
+int poison;
+int tracking;
+int tracing;
int page_size;
@@ -124,6 +128,10 @@ static void usage(void)
"-v|--validate Validate slabs\n"
"-z|--zero Include empty slabs\n"
"-1|--1ref Single reference\n"
+ "-N|--lines=K Show the first K slabs\n"
+ "-L|--Loss Sort by loss\n"
+ "-X|--Xtotals Show extended summary information\n"
+ "-B|--Bytes Show size in bytes\n"
"\nValid debug options (FZPUT may be combined)\n"
"a / A Switch on all debug options (=FZUP)\n"
"- Switch off all debug options\n"
@@ -225,15 +233,17 @@ static int store_size(char *buffer, unsigned long value)
char trailer = 0;
int n;
- if (value > 1000000000UL) {
- divisor = 100000000UL;
- trailer = 'G';
- } else if (value > 1000000UL) {
- divisor = 100000UL;
- trailer = 'M';
- } else if (value > 1000UL) {
- divisor = 100;
- trailer = 'K';
+ if (!show_bytes) {
+ if (value > 1000000000UL) {
+ divisor = 100000000UL;
+ trailer = 'G';
+ } else if (value > 1000000UL) {
+ divisor = 100000UL;
+ trailer = 'M';
+ } else if (value > 1000UL) {
+ divisor = 100;
+ trailer = 'K';
+ }
}
value /= divisor;
@@ -297,10 +307,12 @@ int line = 0;
static void first_line(void)
{
if (show_activity)
- printf("Name Objects Alloc Free %%Fast Fallb O CmpX UL\n");
+ printf("Name Objects Alloc Free"
+ " %%Fast Fallb O CmpX UL\n");
else
- printf("Name Objects Objsize Space "
- "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n");
+ printf("Name Objects Objsize %s "
+ "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n",
+ sort_loss ? " Loss" : "Space");
}
/*
@@ -333,6 +345,11 @@ static unsigned long slab_activity(struct slabinfo *s)
s->alloc_slowpath + s->free_slowpath;
}
+static unsigned long slab_waste(struct slabinfo *s)
+{
+ return slab_size(s) - s->objects * s->object_size;
+}
+
static void slab_numa(struct slabinfo *s, int mode)
{
int node;
@@ -504,7 +521,7 @@ static void report(struct slabinfo *s)
if (strcmp(s->name, "*") == 0)
return;
- printf("\nSlabcache: %-20s Aliases: %2d Order : %2d Objects: %lu\n",
+ printf("\nSlabcache: %-15s Aliases: %2d Order : %2d Objects: %lu\n",
s->name, s->aliases, s->order, s->objects);
if (s->hwcache_align)
printf("** Hardware cacheline aligned\n");
@@ -561,7 +578,10 @@ static void slabcache(struct slabinfo *s)
if (show_empty && s->slabs)
return;
- store_size(size_str, slab_size(s));
+ if (sort_loss == 0)
+ store_size(size_str, slab_size(s));
+ else
+ store_size(size_str, slab_waste(s));
snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
s->partial, s->cpu_slabs);
@@ -602,15 +622,15 @@ static void slabcache(struct slabinfo *s)
total_free ? (s->free_fastpath * 100 / total_free) : 0,
s->order_fallback, s->order, s->cmpxchg_double_fail,
s->cmpxchg_double_cpu_fail);
- }
- else
- printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
+ } else {
+ printf("%-21s %8ld %7d %15s %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);
+ }
}
/*
@@ -918,84 +938,88 @@ static void totals(void)
printf("Slabcache Totals\n");
printf("----------------\n");
- printf("Slabcaches : %3d Aliases : %3d->%-3d Active: %3d\n",
+ printf("Slabcaches : %15d Aliases : %11d->%-3d Active: %3d\n",
slabs, aliases, alias_targets, used_slabs);
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: %15s # Loss : %15s 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 : %15s # PartObj: %15s ORatio:%6s%%\n", b1, b2, b3);
printf("\n");
- printf("Per Cache Average Min Max Total\n");
- printf("---------------------------------------------------------\n");
+ printf("Per Cache Average "
+ "Min Max Total\n");
+ printf("---------------------------------------"
+ "-------------------------------------\n");
store_size(b1, avg_objects);store_size(b2, min_objects);
store_size(b3, max_objects);store_size(b4, total_objects);
- printf("#Objects %10s %10s %10s %10s\n",
+ printf("#Objects %15s %15s %15s %15s\n",
b1, b2, b3, b4);
store_size(b1, avg_slabs);store_size(b2, min_slabs);
store_size(b3, max_slabs);store_size(b4, total_slabs);
- printf("#Slabs %10s %10s %10s %10s\n",
+ printf("#Slabs %15s %15s %15s %15s\n",
b1, b2, b3, b4);
store_size(b1, avg_partial);store_size(b2, min_partial);
store_size(b3, max_partial);store_size(b4, total_partial);
- printf("#PartSlab %10s %10s %10s %10s\n",
+ printf("#PartSlab %15s %15s %15s %15s\n",
b1, b2, b3, b4);
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%15s%% %15s%% %15s%% %15s%%\n",
b1, b2, b3, b4);
store_size(b1, avg_partobj);store_size(b2, min_partobj);
store_size(b3, max_partobj);
store_size(b4, total_partobj);
- printf("PartObjs %10s %10s %10s %10s\n",
+ printf("PartObjs %15s %15s %15s %15s\n",
b1, b2, b3, b4);
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%15s%% %15s%% %15s%% %15s%%\n",
b1, b2, b3, b4);
store_size(b1, avg_size);store_size(b2, min_size);
store_size(b3, max_size);store_size(b4, total_size);
- printf("Memory %10s %10s %10s %10s\n",
+ printf("Memory %15s %15s %15s %15s\n",
b1, b2, b3, b4);
store_size(b1, avg_used);store_size(b2, min_used);
store_size(b3, max_used);store_size(b4, total_used);
- printf("Used %10s %10s %10s %10s\n",
+ printf("Used %15s %15s %15s %15s\n",
b1, b2, b3, b4);
store_size(b1, avg_waste);store_size(b2, min_waste);
store_size(b3, max_waste);store_size(b4, total_waste);
- printf("Loss %10s %10s %10s %10s\n",
+ printf("Loss %15s %15s %15s %15s\n",
b1, b2, b3, b4);
printf("\n");
- printf("Per Object Average Min Max\n");
- printf("---------------------------------------------\n");
+ printf("Per Object Average "
+ "Min Max\n");
+ printf("---------------------------------------"
+ "--------------------\n");
store_size(b1, avg_memobj);store_size(b2, min_memobj);
store_size(b3, max_memobj);
- printf("Memory %10s %10s %10s\n",
+ printf("Memory %15s %15s %15s\n",
b1, b2, b3);
store_size(b1, avg_objsize);store_size(b2, min_objsize);
store_size(b3, max_objsize);
- printf("User %10s %10s %10s\n",
+ printf("User %15s %15s %15s\n",
b1, b2, b3);
store_size(b1, avg_objwaste);store_size(b2, min_objwaste);
store_size(b3, max_objwaste);
- printf("Loss %10s %10s %10s\n",
+ printf("Loss %15s %15s %15s\n",
b1, b2, b3);
}
@@ -1011,6 +1035,8 @@ static void sort_slabs(void)
result = slab_size(s1) < slab_size(s2);
else if (sort_active)
result = slab_activity(s1) < slab_activity(s2);
+ else if (sort_loss)
+ result = slab_waste(s1) < slab_waste(s2);
else
result = strcasecmp(s1->name, s2->name);
@@ -1095,7 +1121,7 @@ static void alias(void)
active = a->slab->name;
}
else
- printf("%-20s -> %s\n", a->name, a->slab->name);
+ printf("%-15s -> %s\n", a->name, a->slab->name);
}
if (active)
printf("\n");
@@ -1241,12 +1267,16 @@ static void read_slab_dir(void)
static void output_slabs(void)
{
struct slabinfo *slab;
+ int lines = output_lines;
- for (slab = slabinfo; slab < slabinfo + slabs; slab++) {
+ for (slab = slabinfo; (slab < slabinfo + slabs) &&
+ lines != 0; slab++) {
if (slab->alias)
continue;
+ if (lines != -1)
+ lines--;
if (show_numa)
slab_numa(slab, 0);
@@ -1267,24 +1297,54 @@ static void output_slabs(void)
}
}
+static void xtotals(void)
+{
+ totals();
+
+ link_slabs();
+ rename_slabs();
+
+ printf("\nSlabs sorted by size\n");
+ printf("--------------------\n");
+ sort_loss = 0;
+ sort_size = 1;
+ sort_slabs();
+ output_slabs();
+
+ printf("\nSlabs sorted by loss\n");
+ printf("--------------------\n");
+ line = 0;
+ sort_loss = 1;
+ sort_size = 0;
+ sort_slabs();
+ output_slabs();
+ printf("\n");
+}
+
struct option opts[] = {
- { "aliases", 0, NULL, 'a' },
- { "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'},
- { "validate", 0, NULL, 'v' },
- { "zero", 0, NULL, 'z' },
- { "1ref", 0, NULL, '1'},
+ { "aliases", no_argument, NULL, 'a' },
+ { "activity", no_argument, NULL, 'A' },
+ { "debug", optional_argument, NULL, 'd' },
+ { "display-activity", no_argument, NULL, 'D' },
+ { "empty", no_argument, NULL, 'e' },
+ { "first-alias", no_argument, NULL, 'f' },
+ { "help", no_argument, NULL, 'h' },
+ { "inverted", no_argument, NULL, 'i'},
+ { "slabs", no_argument, NULL, 'l' },
+ { "numa", no_argument, NULL, 'n' },
+ { "ops", no_argument, NULL, 'o' },
+ { "shrink", no_argument, NULL, 's' },
+ { "report", no_argument, NULL, 'r' },
+ { "Size", no_argument, NULL, 'S'},
+ { "tracking", no_argument, NULL, 't'},
+ { "Totals", no_argument, NULL, 'T'},
+ { "validate", no_argument, NULL, 'v' },
+ { "zero", no_argument, NULL, 'z' },
+ { "1ref", no_argument, NULL, '1'},
+ { "lines", required_argument, NULL, 'N'},
+ { "Loss", no_argument, NULL, 'L'},
+ { "Xtotals", no_argument, NULL, 'X'},
+ { "Bytes", no_argument, NULL, 'B'},
{ NULL, 0, NULL, 0 }
};
@@ -1296,7 +1356,7 @@ int main(int argc, char *argv[])
page_size = getpagesize();
- while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS",
+ while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:LXB",
opts, NULL)) != -1)
switch (c) {
case '1':
@@ -1358,7 +1418,25 @@ int main(int argc, char *argv[])
case 'S':
sort_size = 1;
break;
-
+ case 'N':
+ if (optarg) {
+ output_lines = atoi(optarg);
+ if (output_lines < 1)
+ output_lines = 1;
+ }
+ break;
+ case 'L':
+ sort_loss = 1;
+ break;
+ case 'X':
+ if (output_lines == -1)
+ output_lines = 1;
+ extended_totals = 1;
+ show_bytes = 1;
+ break;
+ case 'B':
+ show_bytes = 1;
+ break;
default:
fatal("%s: Invalid option '%c'\n", argv[0], optopt);
@@ -1378,12 +1456,13 @@ int main(int argc, char *argv[])
fatal("%s: Invalid pattern '%s' code %d\n",
argv[0], pattern_source, err);
read_slab_dir();
- if (show_alias)
+ if (show_alias) {
alias();
- else
- if (show_totals)
+ } else if (extended_totals) {
+ xtotals();
+ } else if (show_totals) {
totals();
- else {
+ } else {
link_slabs();
rename_slabs();
sort_slabs();