diff options
Diffstat (limited to 'tools/vm/slabinfo.c')
| -rw-r--r-- | tools/vm/slabinfo.c | 118 |
1 files changed, 70 insertions, 48 deletions
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); |