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-rw-r--r--tools/vm/page-types.c14
-rw-r--r--tools/vm/slabinfo-gnuplot.sh9
-rw-r--r--tools/vm/slabinfo.c118
3 files changed, 72 insertions, 69 deletions
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 6f64b2b93234..58c0eab71bca 100644
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* page-types: Tool for querying page flags
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; version 2.
- *
- * 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.
- *
- * You should find a copy of v2 of the GNU General Public License somewhere on
- * your Linux system; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
* Copyright (C) 2009 Intel corporation
*
* Authors: Wu Fengguang <fengguang.wu@intel.com>
diff --git a/tools/vm/slabinfo-gnuplot.sh b/tools/vm/slabinfo-gnuplot.sh
index 0cf28aa6f21c..26e193ffd2a2 100644
--- a/tools/vm/slabinfo-gnuplot.sh
+++ b/tools/vm/slabinfo-gnuplot.sh
@@ -1,16 +1,9 @@
#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
# 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,
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 73818f1b2ef8..68092d15e12b 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -79,6 +79,7 @@ int sort_size;
int sort_active;
int set_debug;
int show_ops;
+int sort_partial;
int show_activity;
int output_lines = -1;
int sort_loss;
@@ -110,7 +111,7 @@ static void fatal(const char *x, ...)
static void usage(void)
{
printf("slabinfo 4/15/2011. (c) 2007 sgi/(c) 2011 Linux Foundation.\n\n"
- "slabinfo [-aADefhilnosrStTvz1LXBU] [N=K] [-dafzput] [slab-regexp]\n"
+ "slabinfo [-aABDefhilLnoPrsStTUvXz1] [N=K] [-dafzput] [slab-regexp]\n"
"-a|--aliases Show aliases\n"
"-A|--activity Most active slabs first\n"
"-B|--Bytes Show size in bytes\n"
@@ -124,6 +125,7 @@ static void usage(void)
"-n|--numa Show NUMA information\n"
"-N|--lines=K Show the first K slabs\n"
"-o|--ops Show kmem_cache_ops\n"
+ "-P|--partial Sort by number of partial slabs\n"
"-r|--report Detailed report on single slabs\n"
"-s|--shrink Shrink slabs\n"
"-S|--Size Sort by size\n"
@@ -131,9 +133,9 @@ static void usage(void)
"-T|--Totals Show summary information\n"
"-U|--Unreclaim Show unreclaimable slabs only\n"
"-v|--validate Validate slabs\n"
+ "-X|--Xtotals Show extended summary information\n"
"-z|--zero Include empty slabs\n"
"-1|--1ref Single reference\n"
- "-X|--Xtotals Show extended summary information\n"
"\n"
"-d | --debug Switch off all debug options\n"
@@ -146,6 +148,8 @@ static void usage(void)
" p | P Poisoning\n"
" u | U Tracking\n"
" t | T Tracing\n"
+
+ "\nSorting options (--Loss, --Size, --Partial) are mutually exclusive\n"
);
}
@@ -1047,6 +1051,8 @@ static void sort_slabs(void)
result = slab_activity(s1) < slab_activity(s2);
else if (sort_loss)
result = slab_waste(s1) < slab_waste(s2);
+ else if (sort_partial)
+ result = s1->partial < s2->partial;
else
result = strcasecmp(s1->name, s2->name);
@@ -1307,33 +1313,46 @@ static void output_slabs(void)
}
}
+static void _xtotals(char *heading, char *underline,
+ int loss, int size, int partial)
+{
+ printf("%s%s", heading, underline);
+ line = 0;
+ sort_loss = loss;
+ sort_size = size;
+ sort_partial = partial;
+ sort_slabs();
+ output_slabs();
+}
+
static void xtotals(void)
{
+ char *heading, *underline;
+
totals();
link_slabs();
rename_slabs();
- printf("\nSlabs sorted by size\n");
- printf("--------------------\n");
- sort_loss = 0;
- sort_size = 1;
- sort_slabs();
- output_slabs();
+ heading = "\nSlabs sorted by size\n";
+ underline = "--------------------\n";
+ _xtotals(heading, underline, 0, 1, 0);
+
+ heading = "\nSlabs sorted by loss\n";
+ underline = "--------------------\n";
+ _xtotals(heading, underline, 1, 0, 0);
+
+ heading = "\nSlabs sorted by number of partial slabs\n";
+ underline = "---------------------------------------\n";
+ _xtotals(heading, underline, 0, 0, 1);
- 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", no_argument, NULL, 'a' },
{ "activity", no_argument, NULL, 'A' },
+ { "Bytes", no_argument, NULL, 'B'},
{ "debug", optional_argument, NULL, 'd' },
{ "display-activity", no_argument, NULL, 'D' },
{ "empty", no_argument, NULL, 'e' },
@@ -1341,21 +1360,21 @@ struct option opts[] = {
{ "help", no_argument, NULL, 'h' },
{ "inverted", no_argument, NULL, 'i'},
{ "slabs", no_argument, NULL, 'l' },
+ { "Loss", no_argument, NULL, 'L'},
{ "numa", no_argument, NULL, 'n' },
+ { "lines", required_argument, NULL, 'N'},
{ "ops", no_argument, NULL, 'o' },
- { "shrink", no_argument, NULL, 's' },
+ { "partial", no_argument, NULL, 'p'},
{ "report", no_argument, NULL, 'r' },
+ { "shrink", no_argument, NULL, 's' },
{ "Size", no_argument, NULL, 'S'},
{ "tracking", no_argument, NULL, 't'},
{ "Totals", no_argument, NULL, 'T'},
+ { "Unreclaim", no_argument, NULL, 'U'},
{ "validate", no_argument, NULL, 'v' },
+ { "Xtotals", no_argument, NULL, 'X'},
{ "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'},
- { "Unreclaim", no_argument, NULL, 'U'},
{ NULL, 0, NULL, 0 }
};
@@ -1367,18 +1386,18 @@ int main(int argc, char *argv[])
page_size = getpagesize();
- while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:LXBU",
+ while ((c = getopt_long(argc, argv, "aABd::DefhilLnN:oPrsStTUvXz1",
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 'B':
+ show_bytes = 1;
+ break;
case 'd':
set_debug = 1;
if (!debug_opt_scan(optarg))
@@ -1399,45 +1418,48 @@ int main(int argc, char *argv[])
case 'i':
show_inverted = 1;
break;
+ case 'l':
+ show_slab = 1;
+ break;
+ case 'L':
+ sort_loss = 1;
+ break;
case 'n':
show_numa = 1;
break;
+ case 'N':
+ if (optarg) {
+ output_lines = atoi(optarg);
+ if (output_lines < 1)
+ output_lines = 1;
+ }
+ break;
case 'o':
show_ops = 1;
break;
case 'r':
show_report = 1;
break;
+ case 'P':
+ sort_partial = 1;
+ break;
case 's':
shrink = 1;
break;
- case 'l':
- show_slab = 1;
+ case 'S':
+ sort_size = 1;
break;
case 't':
show_track = 1;
break;
- case 'v':
- validate = 1;
- break;
- case 'z':
- skip_zero = 0;
- break;
case 'T':
show_totals = 1;
break;
- case 'S':
- sort_size = 1;
- break;
- case 'N':
- if (optarg) {
- output_lines = atoi(optarg);
- if (output_lines < 1)
- output_lines = 1;
- }
+ case 'U':
+ unreclaim_only = 1;
break;
- case 'L':
- sort_loss = 1;
+ case 'v':
+ validate = 1;
break;
case 'X':
if (output_lines == -1)
@@ -1445,11 +1467,11 @@ int main(int argc, char *argv[])
extended_totals = 1;
show_bytes = 1;
break;
- case 'B':
- show_bytes = 1;
+ case 'z':
+ skip_zero = 0;
break;
- case 'U':
- unreclaim_only = 1;
+ case '1':
+ show_single_ref = 1;
break;
default:
fatal("%s: Invalid option '%c'\n", argv[0], optopt);
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