src/proc_vmstat.c

   1 #ifdef HAVE_CONFIG_H
   2 #include <config.h>
   3 #endif
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <unistd.h>
   8
   9 #include "common.h"
  10 #include "log.h"
  11 #include "appconfig.h"
  12 #include "procfile.h"
  13 #include "rrd.h"
  14 #include "plugin_proc.h"
  15
  16 #define MAX_PROC_VMSTAT_LINE 4096
  17 #define MAX_PROC_VMSTAT_NAME 1024
  18
  19 int do_proc_vmstat(int update_every, unsigned long long dt) {
  20         static procfile *ff = NULL;
  21         static int do_swapio = -1, do_io = -1, do_pgfaults = -1, gen_hashes = -1;
  22
  23         // static uint32_t hash_allocstall = -1;
  24         // static uint32_t hash_compact_blocks_moved = -1;
  25         // static uint32_t hash_compact_fail = -1;
  26         // static uint32_t hash_compact_pagemigrate_failed = -1;
  27         // static uint32_t hash_compact_pages_moved = -1;
  28         // static uint32_t hash_compact_stall = -1;
  29         // static uint32_t hash_compact_success = -1;
  30         // static uint32_t hash_htlb_buddy_alloc_fail = -1;
  31         // static uint32_t hash_htlb_buddy_alloc_success = -1;
  32         // static uint32_t hash_kswapd_high_wmark_hit_quickly = -1;
  33         // static uint32_t hash_kswapd_inodesteal = -1;
  34         // static uint32_t hash_kswapd_low_wmark_hit_quickly = -1;
  35         // static uint32_t hash_kswapd_skip_congestion_wait = -1;
  36         // static uint32_t hash_nr_active_anon = -1;
  37         // static uint32_t hash_nr_active_file = -1;
  38         // static uint32_t hash_nr_anon_pages = -1;
  39         // static uint32_t hash_nr_anon_transparent_hugepages = -1;
  40         // static uint32_t hash_nr_bounce = -1;
  41         // static uint32_t hash_nr_dirtied = -1;
  42         // static uint32_t hash_nr_dirty = -1;
  43         // static uint32_t hash_nr_dirty_background_threshold = -1;
  44         // static uint32_t hash_nr_dirty_threshold = -1;
  45         // static uint32_t hash_nr_file_pages = -1;
  46         // static uint32_t hash_nr_free_pages = -1;
  47         // static uint32_t hash_nr_inactive_anon = -1;
  48         // static uint32_t hash_nr_inactive_file = -1;
  49         // static uint32_t hash_nr_isolated_anon = -1;
  50         // static uint32_t hash_nr_isolated_file = -1;
  51         // static uint32_t hash_nr_kernel_stack = -1;
  52         // static uint32_t hash_nr_mapped = -1;
  53         // static uint32_t hash_nr_mlock = -1;
  54         // static uint32_t hash_nr_page_table_pages = -1;
  55         // static uint32_t hash_nr_shmem = -1;
  56         // static uint32_t hash_nr_slab_reclaimable = -1;
  57         // static uint32_t hash_nr_slab_unreclaimable = -1;
  58         // static uint32_t hash_nr_unevictable = -1;
  59         // static uint32_t hash_nr_unstable = -1;
  60         // static uint32_t hash_nr_vmscan_immediate_reclaim = -1;
  61         // static uint32_t hash_nr_vmscan_write = -1;
  62         // static uint32_t hash_nr_writeback = -1;
  63         // static uint32_t hash_nr_writeback_temp = -1;
  64         // static uint32_t hash_nr_written = -1;
  65         // static uint32_t hash_pageoutrun = -1;
  66         // static uint32_t hash_pgactivate = -1;
  67         // static uint32_t hash_pgalloc_dma = -1;
  68         // static uint32_t hash_pgalloc_dma32 = -1;
  69         // static uint32_t hash_pgalloc_movable = -1;
  70         // static uint32_t hash_pgalloc_normal = -1;
  71         // static uint32_t hash_pgdeactivate = -1;
  72         static uint32_t hash_pgfault = -1;
  73         // static uint32_t hash_pgfree = -1;
  74         // static uint32_t hash_pginodesteal = -1;
  75         static uint32_t hash_pgmajfault = -1;
  76         static uint32_t hash_pgpgin = -1;
  77         static uint32_t hash_pgpgout = -1;
  78         // static uint32_t hash_pgrefill_dma = -1;
  79         // static uint32_t hash_pgrefill_dma32 = -1;
  80         // static uint32_t hash_pgrefill_movable = -1;
  81         // static uint32_t hash_pgrefill_normal = -1;
  82         // static uint32_t hash_pgrotated = -1;
  83         // static uint32_t hash_pgscan_direct_dma = -1;
  84         // static uint32_t hash_pgscan_direct_dma32 = -1;
  85         // static uint32_t hash_pgscan_direct_movable = -1;
  86         // static uint32_t hash_pgscan_direct_normal = -1;
  87         // static uint32_t hash_pgscan_kswapd_dma = -1;
  88         // static uint32_t hash_pgscan_kswapd_dma32 = -1;
  89         // static uint32_t hash_pgscan_kswapd_movable = -1;
  90         // static uint32_t hash_pgscan_kswapd_normal = -1;
  91         // static uint32_t hash_pgsteal_direct_dma = -1;
  92         // static uint32_t hash_pgsteal_direct_dma32 = -1;
  93         // static uint32_t hash_pgsteal_direct_movable = -1;
  94         // static uint32_t hash_pgsteal_direct_normal = -1;
  95         // static uint32_t hash_pgsteal_kswapd_dma = -1;
  96         // static uint32_t hash_pgsteal_kswapd_dma32 = -1;
  97         // static uint32_t hash_pgsteal_kswapd_movable = -1;
  98         // static uint32_t hash_pgsteal_kswapd_normal = -1;
  99         static uint32_t hash_pswpin = -1;
 100         static uint32_t hash_pswpout = -1;
 101         // static uint32_t hash_slabs_scanned = -1;
 102         // static uint32_t hash_thp_collapse_alloc = -1;
 103         // static uint32_t hash_thp_collapse_alloc_failed = -1;
 104         // static uint32_t hash_thp_fault_alloc = -1;
 105         // static uint32_t hash_thp_fault_fallback = -1;
 106         // static uint32_t hash_thp_split = -1;
 107         // static uint32_t hash_unevictable_pgs_cleared = -1;
 108         // static uint32_t hash_unevictable_pgs_culled = -1;
 109         // static uint32_t hash_unevictable_pgs_mlocked = -1;
 110         // static uint32_t hash_unevictable_pgs_mlockfreed = -1;
 111         // static uint32_t hash_unevictable_pgs_munlocked = -1;
 112         // static uint32_t hash_unevictable_pgs_rescued = -1;
 113         // static uint32_t hash_unevictable_pgs_scanned = -1;
 114         // static uint32_t hash_unevictable_pgs_stranded = -1;
 115
 116         if(gen_hashes != 1) {
 117                 gen_hashes = 1;
 118                 // hash_allocstall = simple_hash("allocstall");
 119                 // hash_compact_blocks_moved = simple_hash("compact_blocks_moved");
 120                 // hash_compact_fail = simple_hash("compact_fail");
 121                 // hash_compact_pagemigrate_failed = simple_hash("compact_pagemigrate_failed");
 122                 // hash_compact_pages_moved = simple_hash("compact_pages_moved");
 123                 // hash_compact_stall = simple_hash("compact_stall");
 124                 // hash_compact_success = simple_hash("compact_success");
 125                 // hash_htlb_buddy_alloc_fail = simple_hash("htlb_buddy_alloc_fail");
 126                 // hash_htlb_buddy_alloc_success = simple_hash("htlb_buddy_alloc_success");
 127                 // hash_kswapd_high_wmark_hit_quickly = simple_hash("kswapd_high_wmark_hit_quickly");
 128                 // hash_kswapd_inodesteal = simple_hash("kswapd_inodesteal");
 129                 // hash_kswapd_low_wmark_hit_quickly = simple_hash("kswapd_low_wmark_hit_quickly");
 130                 // hash_kswapd_skip_congestion_wait = simple_hash("kswapd_skip_congestion_wait");
 131                 // hash_nr_active_anon = simple_hash("nr_active_anon");
 132                 // hash_nr_active_file = simple_hash("nr_active_file");
 133                 // hash_nr_anon_pages = simple_hash("nr_anon_pages");
 134                 // hash_nr_anon_transparent_hugepages = simple_hash("nr_anon_transparent_hugepages");
 135                 // hash_nr_bounce = simple_hash("nr_bounce");
 136                 // hash_nr_dirtied = simple_hash("nr_dirtied");
 137                 // hash_nr_dirty = simple_hash("nr_dirty");
 138                 // hash_nr_dirty_background_threshold = simple_hash("nr_dirty_background_threshold");
 139                 // hash_nr_dirty_threshold = simple_hash("nr_dirty_threshold");
 140                 // hash_nr_file_pages = simple_hash("nr_file_pages");
 141                 // hash_nr_free_pages = simple_hash("nr_free_pages");
 142                 // hash_nr_inactive_anon = simple_hash("nr_inactive_anon");
 143                 // hash_nr_inactive_file = simple_hash("nr_inactive_file");
 144                 // hash_nr_isolated_anon = simple_hash("nr_isolated_anon");
 145                 // hash_nr_isolated_file = simple_hash("nr_isolated_file");
 146                 // hash_nr_kernel_stack = simple_hash("nr_kernel_stack");
 147                 // hash_nr_mapped = simple_hash("nr_mapped");
 148                 // hash_nr_mlock = simple_hash("nr_mlock");
 149                 // hash_nr_page_table_pages = simple_hash("nr_page_table_pages");
 150                 // hash_nr_shmem = simple_hash("nr_shmem");
 151                 // hash_nr_slab_reclaimable = simple_hash("nr_slab_reclaimable");
 152                 // hash_nr_slab_unreclaimable = simple_hash("nr_slab_unreclaimable");
 153                 // hash_nr_unevictable = simple_hash("nr_unevictable");
 154                 // hash_nr_unstable = simple_hash("nr_unstable");
 155                 // hash_nr_vmscan_immediate_reclaim = simple_hash("nr_vmscan_immediate_reclaim");
 156                 // hash_nr_vmscan_write = simple_hash("nr_vmscan_write");
 157                 // hash_nr_writeback = simple_hash("nr_writeback");
 158                 // hash_nr_writeback_temp = simple_hash("nr_writeback_temp");
 159                 // hash_nr_written = simple_hash("nr_written");
 160                 // hash_pageoutrun = simple_hash("pageoutrun");
 161                 // hash_pgactivate = simple_hash("pgactivate");
 162                 // hash_pgalloc_dma = simple_hash("pgalloc_dma");
 163                 // hash_pgalloc_dma32 = simple_hash("pgalloc_dma32");
 164                 // hash_pgalloc_movable = simple_hash("pgalloc_movable");
 165                 // hash_pgalloc_normal = simple_hash("pgalloc_normal");
 166                 // hash_pgdeactivate = simple_hash("pgdeactivate");
 167                 hash_pgfault = simple_hash("pgfault");
 168                 // hash_pgfree = simple_hash("pgfree");
 169                 // hash_pginodesteal = simple_hash("pginodesteal");
 170                 hash_pgmajfault = simple_hash("pgmajfault");
 171                 hash_pgpgin = simple_hash("pgpgin");
 172                 hash_pgpgout = simple_hash("pgpgout");
 173                 // hash_pgrefill_dma = simple_hash("pgrefill_dma");
 174                 // hash_pgrefill_dma32 = simple_hash("pgrefill_dma32");
 175                 // hash_pgrefill_movable = simple_hash("pgrefill_movable");
 176                 // hash_pgrefill_normal = simple_hash("pgrefill_normal");
 177                 // hash_pgrotated = simple_hash("pgrotated");
 178                 // hash_pgscan_direct_dma = simple_hash("pgscan_direct_dma");
 179                 // hash_pgscan_direct_dma32 = simple_hash("pgscan_direct_dma32");
 180                 // hash_pgscan_direct_movable = simple_hash("pgscan_direct_movable");
 181                 // hash_pgscan_direct_normal = simple_hash("pgscan_direct_normal");
 182                 // hash_pgscan_kswapd_dma = simple_hash("pgscan_kswapd_dma");
 183                 // hash_pgscan_kswapd_dma32 = simple_hash("pgscan_kswapd_dma32");
 184                 // hash_pgscan_kswapd_movable = simple_hash("pgscan_kswapd_movable");
 185                 // hash_pgscan_kswapd_normal = simple_hash("pgscan_kswapd_normal");
 186                 // hash_pgsteal_direct_dma = simple_hash("pgsteal_direct_dma");
 187                 // hash_pgsteal_direct_dma32 = simple_hash("pgsteal_direct_dma32");
 188                 // hash_pgsteal_direct_movable = simple_hash("pgsteal_direct_movable");
 189                 // hash_pgsteal_direct_normal = simple_hash("pgsteal_direct_normal");
 190                 // hash_pgsteal_kswapd_dma = simple_hash("pgsteal_kswapd_dma");
 191                 // hash_pgsteal_kswapd_dma32 = simple_hash("pgsteal_kswapd_dma32");
 192                 // hash_pgsteal_kswapd_movable = simple_hash("pgsteal_kswapd_movable");
 193                 // hash_pgsteal_kswapd_normal = simple_hash("pgsteal_kswapd_normal");
 194                 hash_pswpin = simple_hash("pswpin");
 195                 hash_pswpout = simple_hash("pswpout");
 196                 // hash_slabs_scanned = simple_hash("slabs_scanned");
 197                 // hash_thp_collapse_alloc = simple_hash("thp_collapse_alloc");
 198                 // hash_thp_collapse_alloc_failed = simple_hash("thp_collapse_alloc_failed");
 199                 // hash_thp_fault_alloc = simple_hash("thp_fault_alloc");
 200                 // hash_thp_fault_fallback = simple_hash("thp_fault_fallback");
 201                 // hash_thp_split = simple_hash("thp_split");
 202                 // hash_unevictable_pgs_cleared = simple_hash("unevictable_pgs_cleared");
 203                 // hash_unevictable_pgs_culled = simple_hash("unevictable_pgs_culled");
 204                 // hash_unevictable_pgs_mlocked = simple_hash("unevictable_pgs_mlocked");
 205                 // hash_unevictable_pgs_mlockfreed = simple_hash("unevictable_pgs_mlockfreed");
 206                 // hash_unevictable_pgs_munlocked = simple_hash("unevictable_pgs_munlocked");
 207                 // hash_unevictable_pgs_rescued = simple_hash("unevictable_pgs_rescued");
 208                 // hash_unevictable_pgs_scanned = simple_hash("unevictable_pgs_scanned");
 209                 // hash_unevictable_pgs_stranded = simple_hash("unevictable_pgs_stranded");
 210         }
 211
 212         if(do_swapio == -1)     do_swapio = config_get_boolean("plugin:proc:/proc/vmstat", "swap i/o", 1);
 213         if(do_io == -1)         do_io = config_get_boolean("plugin:proc:/proc/vmstat", "disk i/o", 1);
 214         if(do_pgfaults == -1)   do_pgfaults = config_get_boolean("plugin:proc:/proc/vmstat", "memory page faults", 1);
 215
 216         if(dt) {};
 217
 218         if(!ff) {
 219                 char filename[FILENAME_MAX + 1];
 220                 snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/vmstat");
 221                 ff = procfile_open(config_get("plugin:proc:/proc/vmstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
 222         }
 223         if(!ff) return 1;
 224
 225         ff = procfile_readall(ff);
 226         if(!ff) return 0; // we return 0, so that we will retry to open it next time
 227
 228         uint32_t lines = procfile_lines(ff), l;
 229         uint32_t words;
 230
 231         // unsigned long long allocstall = 0ULL;
 232         // unsigned long long compact_blocks_moved = 0ULL;
 233         // unsigned long long compact_fail = 0ULL;
 234         // unsigned long long compact_pagemigrate_failed = 0ULL;
 235         // unsigned long long compact_pages_moved = 0ULL;
 236         // unsigned long long compact_stall = 0ULL;
 237         // unsigned long long compact_success = 0ULL;
 238         // unsigned long long htlb_buddy_alloc_fail = 0ULL;
 239         // unsigned long long htlb_buddy_alloc_success = 0ULL;
 240         // unsigned long long kswapd_high_wmark_hit_quickly = 0ULL;
 241         // unsigned long long kswapd_inodesteal = 0ULL;
 242         // unsigned long long kswapd_low_wmark_hit_quickly = 0ULL;
 243         // unsigned long long kswapd_skip_congestion_wait = 0ULL;
 244         // unsigned long long nr_active_anon = 0ULL;
 245         // unsigned long long nr_active_file = 0ULL;
 246         // unsigned long long nr_anon_pages = 0ULL;
 247         // unsigned long long nr_anon_transparent_hugepages = 0ULL;
 248         // unsigned long long nr_bounce = 0ULL;
 249         // unsigned long long nr_dirtied = 0ULL;
 250         // unsigned long long nr_dirty = 0ULL;
 251         // unsigned long long nr_dirty_background_threshold = 0ULL;
 252         // unsigned long long nr_dirty_threshold = 0ULL;
 253         // unsigned long long nr_file_pages = 0ULL;
 254         // unsigned long long nr_free_pages = 0ULL;
 255         // unsigned long long nr_inactive_anon = 0ULL;
 256         // unsigned long long nr_inactive_file = 0ULL;
 257         // unsigned long long nr_isolated_anon = 0ULL;
 258         // unsigned long long nr_isolated_file = 0ULL;
 259         // unsigned long long nr_kernel_stack = 0ULL;
 260         // unsigned long long nr_mapped = 0ULL;
 261         // unsigned long long nr_mlock = 0ULL;
 262         // unsigned long long nr_page_table_pages = 0ULL;
 263         // unsigned long long nr_shmem = 0ULL;
 264         // unsigned long long nr_slab_reclaimable = 0ULL;
 265         // unsigned long long nr_slab_unreclaimable = 0ULL;
 266         // unsigned long long nr_unevictable = 0ULL;
 267         // unsigned long long nr_unstable = 0ULL;
 268         // unsigned long long nr_vmscan_immediate_reclaim = 0ULL;
 269         // unsigned long long nr_vmscan_write = 0ULL;
 270         // unsigned long long nr_writeback = 0ULL;
 271         // unsigned long long nr_writeback_temp = 0ULL;
 272         // unsigned long long nr_written = 0ULL;
 273         // unsigned long long pageoutrun = 0ULL;
 274         // unsigned long long pgactivate = 0ULL;
 275         // unsigned long long pgalloc_dma = 0ULL;
 276         // unsigned long long pgalloc_dma32 = 0ULL;
 277         // unsigned long long pgalloc_movable = 0ULL;
 278         // unsigned long long pgalloc_normal = 0ULL;
 279         // unsigned long long pgdeactivate = 0ULL;
 280         unsigned long long pgfault = 0ULL;
 281         // unsigned long long pgfree = 0ULL;
 282         // unsigned long long pginodesteal = 0ULL;
 283         unsigned long long pgmajfault = 0ULL;
 284         unsigned long long pgpgin = 0ULL;
 285         unsigned long long pgpgout = 0ULL;
 286         // unsigned long long pgrefill_dma = 0ULL;
 287         // unsigned long long pgrefill_dma32 = 0ULL;
 288         // unsigned long long pgrefill_movable = 0ULL;
 289         // unsigned long long pgrefill_normal = 0ULL;
 290         // unsigned long long pgrotated = 0ULL;
 291         // unsigned long long pgscan_direct_dma = 0ULL;
 292         // unsigned long long pgscan_direct_dma32 = 0ULL;
 293         // unsigned long long pgscan_direct_movable = 0ULL;
 294         // unsigned long long pgscan_direct_normal = 0ULL;
 295         // unsigned long long pgscan_kswapd_dma = 0ULL;
 296         // unsigned long long pgscan_kswapd_dma32 = 0ULL;
 297         // unsigned long long pgscan_kswapd_movable = 0ULL;
 298         // unsigned long long pgscan_kswapd_normal = 0ULL;
 299         // unsigned long long pgsteal_direct_dma = 0ULL;
 300         // unsigned long long pgsteal_direct_dma32 = 0ULL;
 301         // unsigned long long pgsteal_direct_movable = 0ULL;
 302         // unsigned long long pgsteal_direct_normal = 0ULL;
 303         // unsigned long long pgsteal_kswapd_dma = 0ULL;
 304         // unsigned long long pgsteal_kswapd_dma32 = 0ULL;
 305         // unsigned long long pgsteal_kswapd_movable = 0ULL;
 306         // unsigned long long pgsteal_kswapd_normal = 0ULL;
 307         unsigned long long pswpin = 0ULL;
 308         unsigned long long pswpout = 0ULL;
 309         // unsigned long long slabs_scanned = 0ULL;
 310         // unsigned long long thp_collapse_alloc = 0ULL;
 311         // unsigned long long thp_collapse_alloc_failed = 0ULL;
 312         // unsigned long long thp_fault_alloc = 0ULL;
 313         // unsigned long long thp_fault_fallback = 0ULL;
 314         // unsigned long long thp_split = 0ULL;
 315         // unsigned long long unevictable_pgs_cleared = 0ULL;
 316         // unsigned long long unevictable_pgs_culled = 0ULL;
 317         // unsigned long long unevictable_pgs_mlocked = 0ULL;
 318         // unsigned long long unevictable_pgs_mlockfreed = 0ULL;
 319         // unsigned long long unevictable_pgs_munlocked = 0ULL;
 320         // unsigned long long unevictable_pgs_rescued = 0ULL;
 321         // unsigned long long unevictable_pgs_scanned = 0ULL;
 322         // unsigned long long unevictable_pgs_stranded = 0ULL;
 323
 324         for(l = 0; l < lines ;l++) {
 325                 words = procfile_linewords(ff, l);
 326                 if(words < 2) {
 327                         if(words) error("Cannot read /proc/vmstat line %d. Expected 2 params, read %d.", l, words);
 328                         continue;
 329                 }
 330
 331                 char *name = procfile_lineword(ff, l, 0);
 332                 char * value = procfile_lineword(ff, l, 1);
 333                 if(!name || !*name || !value || !*value) continue;
 334
 335                 uint32_t hash = simple_hash(name);
 336
 337                 if(0) ;
 338                 // else if(hash == hash_allocstall && strcmp(name, "allocstall") == 0) allocstall = strtoull(value, NULL, 10);
 339                 // else if(hash == hash_compact_blocks_moved && strcmp(name, "compact_blocks_moved") == 0) compact_blocks_moved = strtoull(value, NULL, 10);
 340                 // else if(hash == hash_compact_fail && strcmp(name, "compact_fail") == 0) compact_fail = strtoull(value, NULL, 10);
 341                 // else if(hash == hash_compact_pagemigrate_failed && strcmp(name, "compact_pagemigrate_failed") == 0) compact_pagemigrate_failed = strtoull(value, NULL, 10);
 342                 // else if(hash == hash_compact_pages_moved && strcmp(name, "compact_pages_moved") == 0) compact_pages_moved = strtoull(value, NULL, 10);
 343                 // else if(hash == hash_compact_stall && strcmp(name, "compact_stall") == 0) compact_stall = strtoull(value, NULL, 10);
 344                 // else if(hash == hash_compact_success && strcmp(name, "compact_success") == 0) compact_success = strtoull(value, NULL, 10);
 345                 // else if(hash == hash_htlb_buddy_alloc_fail && strcmp(name, "htlb_buddy_alloc_fail") == 0) htlb_buddy_alloc_fail = strtoull(value, NULL, 10);
 346                 // else if(hash == hash_htlb_buddy_alloc_success && strcmp(name, "htlb_buddy_alloc_success") == 0) htlb_buddy_alloc_success = strtoull(value, NULL, 10);
 347                 // else if(hash == hash_kswapd_high_wmark_hit_quickly && strcmp(name, "kswapd_high_wmark_hit_quickly") == 0) kswapd_high_wmark_hit_quickly = strtoull(value, NULL, 10);
 348                 // else if(hash == hash_kswapd_inodesteal && strcmp(name, "kswapd_inodesteal") == 0) kswapd_inodesteal = strtoull(value, NULL, 10);
 349                 // else if(hash == hash_kswapd_low_wmark_hit_quickly && strcmp(name, "kswapd_low_wmark_hit_quickly") == 0) kswapd_low_wmark_hit_quickly = strtoull(value, NULL, 10);
 350                 // else if(hash == hash_kswapd_skip_congestion_wait && strcmp(name, "kswapd_skip_congestion_wait") == 0) kswapd_skip_congestion_wait = strtoull(value, NULL, 10);
 351                 // else if(hash == hash_nr_active_anon && strcmp(name, "nr_active_anon") == 0) nr_active_anon = strtoull(value, NULL, 10);
 352                 // else if(hash == hash_nr_active_file && strcmp(name, "nr_active_file") == 0) nr_active_file = strtoull(value, NULL, 10);
 353                 // else if(hash == hash_nr_anon_pages && strcmp(name, "nr_anon_pages") == 0) nr_anon_pages = strtoull(value, NULL, 10);
 354                 // else if(hash == hash_nr_anon_transparent_hugepages && strcmp(name, "nr_anon_transparent_hugepages") == 0) nr_anon_transparent_hugepages = strtoull(value, NULL, 10);
 355                 // else if(hash == hash_nr_bounce && strcmp(name, "nr_bounce") == 0) nr_bounce = strtoull(value, NULL, 10);
 356                 // else if(hash == hash_nr_dirtied && strcmp(name, "nr_dirtied") == 0) nr_dirtied = strtoull(value, NULL, 10);
 357                 // else if(hash == hash_nr_dirty && strcmp(name, "nr_dirty") == 0) nr_dirty = strtoull(value, NULL, 10);
 358                 // else if(hash == hash_nr_dirty_background_threshold && strcmp(name, "nr_dirty_background_threshold") == 0) nr_dirty_background_threshold = strtoull(value, NULL, 10);
 359                 // else if(hash == hash_nr_dirty_threshold && strcmp(name, "nr_dirty_threshold") == 0) nr_dirty_threshold = strtoull(value, NULL, 10);
 360                 // else if(hash == hash_nr_file_pages && strcmp(name, "nr_file_pages") == 0) nr_file_pages = strtoull(value, NULL, 10);
 361                 // else if(hash == hash_nr_free_pages && strcmp(name, "nr_free_pages") == 0) nr_free_pages = strtoull(value, NULL, 10);
 362                 // else if(hash == hash_nr_inactive_anon && strcmp(name, "nr_inactive_anon") == 0) nr_inactive_anon = strtoull(value, NULL, 10);
 363                 // else if(hash == hash_nr_inactive_file && strcmp(name, "nr_inactive_file") == 0) nr_inactive_file = strtoull(value, NULL, 10);
 364                 // else if(hash == hash_nr_isolated_anon && strcmp(name, "nr_isolated_anon") == 0) nr_isolated_anon = strtoull(value, NULL, 10);
 365                 // else if(hash == hash_nr_isolated_file && strcmp(name, "nr_isolated_file") == 0) nr_isolated_file = strtoull(value, NULL, 10);
 366                 // else if(hash == hash_nr_kernel_stack && strcmp(name, "nr_kernel_stack") == 0) nr_kernel_stack = strtoull(value, NULL, 10);
 367                 // else if(hash == hash_nr_mapped && strcmp(name, "nr_mapped") == 0) nr_mapped = strtoull(value, NULL, 10);
 368                 // else if(hash == hash_nr_mlock && strcmp(name, "nr_mlock") == 0) nr_mlock = strtoull(value, NULL, 10);
 369                 // else if(hash == hash_nr_page_table_pages && strcmp(name, "nr_page_table_pages") == 0) nr_page_table_pages = strtoull(value, NULL, 10);
 370                 // else if(hash == hash_nr_shmem && strcmp(name, "nr_shmem") == 0) nr_shmem = strtoull(value, NULL, 10);
 371                 // else if(hash == hash_nr_slab_reclaimable && strcmp(name, "nr_slab_reclaimable") == 0) nr_slab_reclaimable = strtoull(value, NULL, 10);
 372                 // else if(hash == hash_nr_slab_unreclaimable && strcmp(name, "nr_slab_unreclaimable") == 0) nr_slab_unreclaimable = strtoull(value, NULL, 10);
 373                 // else if(hash == hash_nr_unevictable && strcmp(name, "nr_unevictable") == 0) nr_unevictable = strtoull(value, NULL, 10);
 374                 // else if(hash == hash_nr_unstable && strcmp(name, "nr_unstable") == 0) nr_unstable = strtoull(value, NULL, 10);
 375                 // else if(hash == hash_nr_vmscan_immediate_reclaim && strcmp(name, "nr_vmscan_immediate_reclaim") == 0) nr_vmscan_immediate_reclaim = strtoull(value, NULL, 10);
 376                 // else if(hash == hash_nr_vmscan_write && strcmp(name, "nr_vmscan_write") == 0) nr_vmscan_write = strtoull(value, NULL, 10);
 377                 // else if(hash == hash_nr_writeback && strcmp(name, "nr_writeback") == 0) nr_writeback = strtoull(value, NULL, 10);
 378                 // else if(hash == hash_nr_writeback_temp && strcmp(name, "nr_writeback_temp") == 0) nr_writeback_temp = strtoull(value, NULL, 10);
 379                 // else if(hash == hash_nr_written && strcmp(name, "nr_written") == 0) nr_written = strtoull(value, NULL, 10);
 380                 // else if(hash == hash_pageoutrun && strcmp(name, "pageoutrun") == 0) pageoutrun = strtoull(value, NULL, 10);
 381                 // else if(hash == hash_pgactivate && strcmp(name, "pgactivate") == 0) pgactivate = strtoull(value, NULL, 10);
 382                 // else if(hash == hash_pgalloc_dma && strcmp(name, "pgalloc_dma") == 0) pgalloc_dma = strtoull(value, NULL, 10);
 383                 // else if(hash == hash_pgalloc_dma32 && strcmp(name, "pgalloc_dma32") == 0) pgalloc_dma32 = strtoull(value, NULL, 10);
 384                 // else if(hash == hash_pgalloc_movable && strcmp(name, "pgalloc_movable") == 0) pgalloc_movable = strtoull(value, NULL, 10);
 385                 // else if(hash == hash_pgalloc_normal && strcmp(name, "pgalloc_normal") == 0) pgalloc_normal = strtoull(value, NULL, 10);
 386                 // else if(hash == hash_pgdeactivate && strcmp(name, "pgdeactivate") == 0) pgdeactivate = strtoull(value, NULL, 10);
 387                 else if(hash == hash_pgfault && strcmp(name, "pgfault") == 0) pgfault = strtoull(value, NULL, 10);
 388                 // else if(hash == hash_pgfree && strcmp(name, "pgfree") == 0) pgfree = strtoull(value, NULL, 10);
 389                 // else if(hash == hash_pginodesteal && strcmp(name, "pginodesteal") == 0) pginodesteal = strtoull(value, NULL, 10);
 390                 else if(hash == hash_pgmajfault && strcmp(name, "pgmajfault") == 0) pgmajfault = strtoull(value, NULL, 10);
 391                 else if(hash == hash_pgpgin && strcmp(name, "pgpgin") == 0) pgpgin = strtoull(value, NULL, 10);
 392                 else if(hash == hash_pgpgout && strcmp(name, "pgpgout") == 0) pgpgout = strtoull(value, NULL, 10);
 393                 // else if(hash == hash_pgrefill_dma && strcmp(name, "pgrefill_dma") == 0) pgrefill_dma = strtoull(value, NULL, 10);
 394                 // else if(hash == hash_pgrefill_dma32 && strcmp(name, "pgrefill_dma32") == 0) pgrefill_dma32 = strtoull(value, NULL, 10);
 395                 // else if(hash == hash_pgrefill_movable && strcmp(name, "pgrefill_movable") == 0) pgrefill_movable = strtoull(value, NULL, 10);
 396                 // else if(hash == hash_pgrefill_normal && strcmp(name, "pgrefill_normal") == 0) pgrefill_normal = strtoull(value, NULL, 10);
 397                 // else if(hash == hash_pgrotated && strcmp(name, "pgrotated") == 0) pgrotated = strtoull(value, NULL, 10);
 398                 // else if(hash == hash_pgscan_direct_dma && strcmp(name, "pgscan_direct_dma") == 0) pgscan_direct_dma = strtoull(value, NULL, 10);
 399                 // else if(hash == hash_pgscan_direct_dma32 && strcmp(name, "pgscan_direct_dma32") == 0) pgscan_direct_dma32 = strtoull(value, NULL, 10);
 400                 // else if(hash == hash_pgscan_direct_movable && strcmp(name, "pgscan_direct_movable") == 0) pgscan_direct_movable = strtoull(value, NULL, 10);
 401                 // else if(hash == hash_pgscan_direct_normal && strcmp(name, "pgscan_direct_normal") == 0) pgscan_direct_normal = strtoull(value, NULL, 10);
 402                 // else if(hash == hash_pgscan_kswapd_dma && strcmp(name, "pgscan_kswapd_dma") == 0) pgscan_kswapd_dma = strtoull(value, NULL, 10);
 403                 // else if(hash == hash_pgscan_kswapd_dma32 && strcmp(name, "pgscan_kswapd_dma32") == 0) pgscan_kswapd_dma32 = strtoull(value, NULL, 10);
 404                 // else if(hash == hash_pgscan_kswapd_movable && strcmp(name, "pgscan_kswapd_movable") == 0) pgscan_kswapd_movable = strtoull(value, NULL, 10);
 405                 // else if(hash == hash_pgscan_kswapd_normal && strcmp(name, "pgscan_kswapd_normal") == 0) pgscan_kswapd_normal = strtoull(value, NULL, 10);
 406                 // else if(hash == hash_pgsteal_direct_dma && strcmp(name, "pgsteal_direct_dma") == 0) pgsteal_direct_dma = strtoull(value, NULL, 10);
 407                 // else if(hash == hash_pgsteal_direct_dma32 && strcmp(name, "pgsteal_direct_dma32") == 0) pgsteal_direct_dma32 = strtoull(value, NULL, 10);
 408                 // else if(hash == hash_pgsteal_direct_movable && strcmp(name, "pgsteal_direct_movable") == 0) pgsteal_direct_movable = strtoull(value, NULL, 10);
 409                 // else if(hash == hash_pgsteal_direct_normal && strcmp(name, "pgsteal_direct_normal") == 0) pgsteal_direct_normal = strtoull(value, NULL, 10);
 410                 // else if(hash == hash_pgsteal_kswapd_dma && strcmp(name, "pgsteal_kswapd_dma") == 0) pgsteal_kswapd_dma = strtoull(value, NULL, 10);
 411                 // else if(hash == hash_pgsteal_kswapd_dma32 && strcmp(name, "pgsteal_kswapd_dma32") == 0) pgsteal_kswapd_dma32 = strtoull(value, NULL, 10);
 412                 // else if(hash == hash_pgsteal_kswapd_movable && strcmp(name, "pgsteal_kswapd_movable") == 0) pgsteal_kswapd_movable = strtoull(value, NULL, 10);
 413                 // else if(hash == hash_pgsteal_kswapd_normal && strcmp(name, "pgsteal_kswapd_normal") == 0) pgsteal_kswapd_normal = strtoull(value, NULL, 10);
 414                 else if(hash == hash_pswpin && strcmp(name, "pswpin") == 0) pswpin = strtoull(value, NULL, 10);
 415                 else if(hash == hash_pswpout && strcmp(name, "pswpout") == 0) pswpout = strtoull(value, NULL, 10);
 416                 // else if(hash == hash_slabs_scanned && strcmp(name, "slabs_scanned") == 0) slabs_scanned = strtoull(value, NULL, 10);
 417                 // else if(hash == hash_thp_collapse_alloc && strcmp(name, "thp_collapse_alloc") == 0) thp_collapse_alloc = strtoull(value, NULL, 10);
 418                 // else if(hash == hash_thp_collapse_alloc_failed && strcmp(name, "thp_collapse_alloc_failed") == 0) thp_collapse_alloc_failed = strtoull(value, NULL, 10);
 419                 // else if(hash == hash_thp_fault_alloc && strcmp(name, "thp_fault_alloc") == 0) thp_fault_alloc = strtoull(value, NULL, 10);
 420                 // else if(hash == hash_thp_fault_fallback && strcmp(name, "thp_fault_fallback") == 0) thp_fault_fallback = strtoull(value, NULL, 10);
 421                 // else if(hash == hash_thp_split && strcmp(name, "thp_split") == 0) thp_split = strtoull(value, NULL, 10);
 422                 // else if(hash == hash_unevictable_pgs_cleared && strcmp(name, "unevictable_pgs_cleared") == 0) unevictable_pgs_cleared = strtoull(value, NULL, 10);
 423                 // else if(hash == hash_unevictable_pgs_culled && strcmp(name, "unevictable_pgs_culled") == 0) unevictable_pgs_culled = strtoull(value, NULL, 10);
 424                 // else if(hash == hash_unevictable_pgs_mlocked && strcmp(name, "unevictable_pgs_mlocked") == 0) unevictable_pgs_mlocked = strtoull(value, NULL, 10);
 425                 // else if(hash == hash_unevictable_pgs_mlockfreed && strcmp(name, "unevictable_pgs_mlockfreed") == 0) unevictable_pgs_mlockfreed = strtoull(value, NULL, 10);
 426                 // else if(hash == hash_unevictable_pgs_munlocked && strcmp(name, "unevictable_pgs_munlocked") == 0) unevictable_pgs_munlocked = strtoull(value, NULL, 10);
 427                 // else if(hash == hash_unevictable_pgs_rescued && strcmp(name, "unevictable_pgs_rescued") == 0) unevictable_pgs_rescued = strtoull(value, NULL, 10);
 428                 // else if(hash == hash_unevictable_pgs_scanned && strcmp(name, "unevictable_pgs_scanned") == 0) unevictable_pgs_scanned = strtoull(value, NULL, 10);
 429                 // else if(hash == hash_unevictable_pgs_stranded && strcmp(name, "unevictable_pgs_stranded") == 0) unevictable_pgs_stranded = strtoull(value, NULL, 10);
 430         }
 431
 432         // --------------------------------------------------------------------
 433
 434         if(do_swapio) {
 435                 static RRDSET *st_swapio = NULL;
 436                 if(!st_swapio) {
 437                         st_swapio = rrdset_create("system", "swapio", NULL, "swap", NULL, "Swap I/O", "kilobytes/s", 250, update_every, RRDSET_TYPE_AREA);
 438
 439                         rrddim_add(st_swapio, "in",  NULL, sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
 440                         rrddim_add(st_swapio, "out", NULL, -sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
 441                 }
 442                 else rrdset_next(st_swapio);
 443
 444                 rrddim_set(st_swapio, "in", pswpin);
 445                 rrddim_set(st_swapio, "out", pswpout);
 446                 rrdset_done(st_swapio);
 447         }
 448
 449         // --------------------------------------------------------------------
 450
 451         if(do_io) {
 452                 static RRDSET *st_io = NULL;
 453                 if(!st_io) {
 454                         st_io = rrdset_create("system", "io", NULL, "disk", NULL, "Disk I/O", "kilobytes/s", 150, update_every, RRDSET_TYPE_AREA);
 455
 456                         rrddim_add(st_io, "in",  NULL,  1, 1, RRDDIM_INCREMENTAL);
 457                         rrddim_add(st_io, "out", NULL, -1, 1, RRDDIM_INCREMENTAL);
 458                 }
 459                 else rrdset_next(st_io);
 460
 461                 rrddim_set(st_io, "in", pgpgin);
 462                 rrddim_set(st_io, "out", pgpgout);
 463                 rrdset_done(st_io);
 464         }
 465
 466         // --------------------------------------------------------------------
 467
 468         if(do_pgfaults) {
 469                 static RRDSET *st_pgfaults = NULL;
 470                 if(!st_pgfaults) {
 471                         st_pgfaults = rrdset_create("mem", "pgfaults", NULL, "system", NULL, "Memory Page Faults", "page faults/s", 500, update_every, RRDSET_TYPE_LINE);
 472                         st_pgfaults->isdetail = 1;
 473
 474                         rrddim_add(st_pgfaults, "minor",  NULL,  1, 1, RRDDIM_INCREMENTAL);
 475                         rrddim_add(st_pgfaults, "major", NULL, -1, 1, RRDDIM_INCREMENTAL);
 476                 }
 477                 else rrdset_next(st_pgfaults);
 478
 479                 rrddim_set(st_pgfaults, "minor", pgfault);
 480                 rrddim_set(st_pgfaults, "major", pgmajfault);
 481                 rrdset_done(st_pgfaults);
 482         }
 483
 484         return 0;
 485 }
 486