]> arthur.barton.de Git - netdata.git/blobdiff - src/proc_vmstat.c
improvements identified via static code analysis with cppcheck
[netdata.git] / src / proc_vmstat.c
old mode 100755 (executable)
new mode 100644 (file)
index 8ae1eb2..a805839
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
 #include "common.h"
-#include "log.h"
-#include "appconfig.h"
-#include "procfile.h"
-#include "rrd.h"
-#include "plugin_proc.h"
-
-#define MAX_PROC_VMSTAT_LINE 4096
-#define MAX_PROC_VMSTAT_NAME 1024
 
 int do_proc_vmstat(int update_every, unsigned long long dt) {
-       static procfile *ff = NULL;
-       static int do_swapio = -1, do_io = -1, do_pgfaults = -1;
-
-       if(do_swapio == -1)     do_swapio = config_get_boolean("plugin:proc:/proc/vmstat", "swap i/o", 1);
-       if(do_io == -1)         do_io = config_get_boolean("plugin:proc:/proc/vmstat", "disk i/o", 1);
-       if(do_pgfaults == -1)   do_pgfaults = config_get_boolean("plugin:proc:/proc/vmstat", "memory page faults", 1);
-
-       if(dt) {};
-
-       if(!ff) {
-               char filename[FILENAME_MAX + 1];
-               snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/vmstat");
-               ff = procfile_open(config_get("plugin:proc:/proc/vmstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
-       }
-       if(!ff) return 1;
-
-       ff = procfile_readall(ff);
-       if(!ff) return 0; // we return 0, so that we will retry to open it next time
-
-       uint32_t lines = procfile_lines(ff), l;
-       uint32_t words;
-
-       unsigned long long nr_free_pages = 0, nr_inactive_anon = 0, nr_active_anon = 0, nr_inactive_file = 0, nr_active_file = 0, nr_unevictable = 0, nr_mlock = 0,
-               nr_anon_pages = 0, nr_mapped = 0, nr_file_pages = 0, nr_dirty = 0, nr_writeback = 0, nr_slab_reclaimable = 0, nr_slab_unreclaimable = 0, nr_page_table_pages = 0,
-               nr_kernel_stack = 0, nr_unstable = 0, nr_bounce = 0, nr_vmscan_write = 0, nr_vmscan_immediate_reclaim = 0, nr_writeback_temp = 0, nr_isolated_anon = 0, nr_isolated_file = 0,
-               nr_shmem = 0, nr_dirtied = 0, nr_written = 0, nr_anon_transparent_hugepages = 0, nr_dirty_threshold = 0, nr_dirty_background_threshold = 0,
-               pgpgin = 0, pgpgout = 0, pswpin = 0, pswpout = 0, pgalloc_dma = 0, pgalloc_dma32 = 0, pgalloc_normal = 0, pgalloc_movable = 0, pgfree = 0, pgactivate = 0, pgdeactivate = 0,
-               pgfault = 0, pgmajfault = 0, pgrefill_dma = 0, pgrefill_dma32 = 0, pgrefill_normal = 0, pgrefill_movable = 0, pgsteal_kswapd_dma = 0, pgsteal_kswapd_dma32 = 0,
-               pgsteal_kswapd_normal = 0, pgsteal_kswapd_movable = 0, pgsteal_direct_dma = 0, pgsteal_direct_dma32 = 0, pgsteal_direct_normal = 0, pgsteal_direct_movable = 0, 
-               pgscan_kswapd_dma = 0, pgscan_kswapd_dma32 = 0, pgscan_kswapd_normal = 0, pgscan_kswapd_movable = 0, pgscan_direct_dma = 0, pgscan_direct_dma32 = 0, pgscan_direct_normal = 0,
-               pgscan_direct_movable = 0, pginodesteal = 0, slabs_scanned = 0, kswapd_inodesteal = 0, kswapd_low_wmark_hit_quickly = 0, kswapd_high_wmark_hit_quickly = 0,
-               kswapd_skip_congestion_wait = 0, pageoutrun = 0, allocstall = 0, pgrotated = 0, compact_blocks_moved = 0, compact_pages_moved = 0, compact_pagemigrate_failed = 0,
-               compact_stall = 0, compact_fail = 0, compact_success = 0, htlb_buddy_alloc_success = 0, htlb_buddy_alloc_fail = 0, unevictable_pgs_culled = 0, unevictable_pgs_scanned = 0,
-               unevictable_pgs_rescued = 0, unevictable_pgs_mlocked = 0, unevictable_pgs_munlocked = 0, unevictable_pgs_cleared = 0, unevictable_pgs_stranded = 0, unevictable_pgs_mlockfreed = 0,
-               thp_fault_alloc = 0, thp_fault_fallback = 0, thp_collapse_alloc = 0, thp_collapse_alloc_failed = 0, thp_split = 0;
-
-       for(l = 0; l < lines ;l++) {
-               words = procfile_linewords(ff, l);
-               if(words < 2) {
-                       if(words) error("Cannot read /proc/vmstat line %d. Expected 2 params, read %d.", l, words);
-                       continue;
-               }
-
-               char *name = procfile_lineword(ff, l, 0);
-               unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
-
-                    if(!nr_free_pages && strcmp(name, "nr_free_pages") == 0) nr_free_pages = value;
-               else if(!nr_inactive_anon && strcmp(name, "nr_inactive_anon") == 0) nr_inactive_anon = value;
-               else if(!nr_active_anon && strcmp(name, "nr_active_anon") == 0) nr_active_anon = value;
-               else if(!nr_inactive_file && strcmp(name, "nr_inactive_file") == 0) nr_inactive_file = value;
-               else if(!nr_active_file && strcmp(name, "nr_active_file") == 0) nr_active_file = value;
-               else if(!nr_unevictable && strcmp(name, "nr_unevictable") == 0) nr_unevictable = value;
-               else if(!nr_mlock && strcmp(name, "nr_mlock") == 0) nr_mlock = value;
-               else if(!nr_anon_pages && strcmp(name, "nr_anon_pages") == 0) nr_anon_pages = value;
-               else if(!nr_mapped && strcmp(name, "nr_mapped") == 0) nr_mapped = value;
-               else if(!nr_file_pages && strcmp(name, "nr_file_pages") == 0) nr_file_pages = value;
-               else if(!nr_dirty && strcmp(name, "nr_dirty") == 0) nr_dirty = value;
-               else if(!nr_writeback && strcmp(name, "nr_writeback") == 0) nr_writeback = value;
-               else if(!nr_slab_reclaimable && strcmp(name, "nr_slab_reclaimable") == 0) nr_slab_reclaimable = value;
-               else if(!nr_slab_unreclaimable && strcmp(name, "nr_slab_unreclaimable") == 0) nr_slab_unreclaimable = value;
-               else if(!nr_page_table_pages && strcmp(name, "nr_page_table_pages") == 0) nr_page_table_pages = value;
-               else if(!nr_kernel_stack && strcmp(name, "nr_kernel_stack") == 0) nr_kernel_stack = value;
-               else if(!nr_unstable && strcmp(name, "nr_unstable") == 0) nr_unstable = value;
-               else if(!nr_bounce && strcmp(name, "nr_bounce") == 0) nr_bounce = value;
-               else if(!nr_vmscan_write && strcmp(name, "nr_vmscan_write") == 0) nr_vmscan_write = value;
-               else if(!nr_vmscan_immediate_reclaim && strcmp(name, "nr_vmscan_immediate_reclaim") == 0) nr_vmscan_immediate_reclaim = value;
-               else if(!nr_writeback_temp && strcmp(name, "nr_writeback_temp") == 0) nr_writeback_temp = value;
-               else if(!nr_isolated_anon && strcmp(name, "nr_isolated_anon") == 0) nr_isolated_anon = value;
-               else if(!nr_isolated_file && strcmp(name, "nr_isolated_file") == 0) nr_isolated_file = value;
-               else if(!nr_shmem && strcmp(name, "nr_shmem") == 0) nr_shmem = value;
-               else if(!nr_dirtied && strcmp(name, "nr_dirtied") == 0) nr_dirtied = value;
-               else if(!nr_written && strcmp(name, "nr_written") == 0) nr_written = value;
-               else if(!nr_anon_transparent_hugepages && strcmp(name, "nr_anon_transparent_hugepages") == 0) nr_anon_transparent_hugepages = value;
-               else if(!nr_dirty_threshold && strcmp(name, "nr_dirty_threshold") == 0) nr_dirty_threshold = value;
-               else if(!nr_dirty_background_threshold && strcmp(name, "nr_dirty_background_threshold") == 0) nr_dirty_background_threshold = value;
-               else if(!pgpgin && strcmp(name, "pgpgin") == 0) pgpgin = value;
-               else if(!pgpgout && strcmp(name, "pgpgout") == 0) pgpgout = value;
-               else if(!pswpin && strcmp(name, "pswpin") == 0) pswpin = value;
-               else if(!pswpout && strcmp(name, "pswpout") == 0) pswpout = value;
-               else if(!pgalloc_dma && strcmp(name, "pgalloc_dma") == 0) pgalloc_dma = value;
-               else if(!pgalloc_dma32 && strcmp(name, "pgalloc_dma32") == 0) pgalloc_dma32 = value;
-               else if(!pgalloc_normal && strcmp(name, "pgalloc_normal") == 0) pgalloc_normal = value;
-               else if(!pgalloc_movable && strcmp(name, "pgalloc_movable") == 0) pgalloc_movable = value;
-               else if(!pgfree && strcmp(name, "pgfree") == 0) pgfree = value;
-               else if(!pgactivate && strcmp(name, "pgactivate") == 0) pgactivate = value;
-               else if(!pgdeactivate && strcmp(name, "pgdeactivate") == 0) pgdeactivate = value;
-               else if(!pgfault && strcmp(name, "pgfault") == 0) pgfault = value;
-               else if(!pgmajfault && strcmp(name, "pgmajfault") == 0) pgmajfault = value;
-               else if(!pgrefill_dma && strcmp(name, "pgrefill_dma") == 0) pgrefill_dma = value;
-               else if(!pgrefill_dma32 && strcmp(name, "pgrefill_dma32") == 0) pgrefill_dma32 = value;
-               else if(!pgrefill_normal && strcmp(name, "pgrefill_normal") == 0) pgrefill_normal = value;
-               else if(!pgrefill_movable && strcmp(name, "pgrefill_movable") == 0) pgrefill_movable = value;
-               else if(!pgsteal_kswapd_dma && strcmp(name, "pgsteal_kswapd_dma") == 0) pgsteal_kswapd_dma = value;
-               else if(!pgsteal_kswapd_dma32 && strcmp(name, "pgsteal_kswapd_dma32") == 0) pgsteal_kswapd_dma32 = value;
-               else if(!pgsteal_kswapd_normal && strcmp(name, "pgsteal_kswapd_normal") == 0) pgsteal_kswapd_normal = value;
-               else if(!pgsteal_kswapd_movable && strcmp(name, "pgsteal_kswapd_movable") == 0) pgsteal_kswapd_movable = value;
-               else if(!pgsteal_direct_dma && strcmp(name, "pgsteal_direct_dma") == 0) pgsteal_direct_dma = value;
-               else if(!pgsteal_direct_dma32 && strcmp(name, "pgsteal_direct_dma32") == 0) pgsteal_direct_dma32 = value;
-               else if(!pgsteal_direct_normal && strcmp(name, "pgsteal_direct_normal") == 0) pgsteal_direct_normal = value;
-               else if(!pgsteal_direct_movable && strcmp(name, "pgsteal_direct_movable") == 0) pgsteal_direct_movable = value;
-               else if(!pgscan_kswapd_dma && strcmp(name, "pgscan_kswapd_dma") == 0) pgscan_kswapd_dma = value;
-               else if(!pgscan_kswapd_dma32 && strcmp(name, "pgscan_kswapd_dma32") == 0) pgscan_kswapd_dma32 = value;
-               else if(!pgscan_kswapd_normal && strcmp(name, "pgscan_kswapd_normal") == 0) pgscan_kswapd_normal = value;
-               else if(!pgscan_kswapd_movable && strcmp(name, "pgscan_kswapd_movable") == 0) pgscan_kswapd_movable = value;
-               else if(!pgscan_direct_dma && strcmp(name, "pgscan_direct_dma") == 0) pgscan_direct_dma = value;
-               else if(!pgscan_direct_dma32 && strcmp(name, "pgscan_direct_dma32") == 0) pgscan_direct_dma32 = value;
-               else if(!pgscan_direct_normal && strcmp(name, "pgscan_direct_normal") == 0) pgscan_direct_normal = value;
-               else if(!pgscan_direct_movable && strcmp(name, "pgscan_direct_movable") == 0) pgscan_direct_movable = value;
-               else if(!pginodesteal && strcmp(name, "pginodesteal") == 0) pginodesteal = value;
-               else if(!slabs_scanned && strcmp(name, "slabs_scanned") == 0) slabs_scanned = value;
-               else if(!kswapd_inodesteal && strcmp(name, "kswapd_inodesteal") == 0) kswapd_inodesteal = value;
-               else if(!kswapd_low_wmark_hit_quickly && strcmp(name, "kswapd_low_wmark_hit_quickly") == 0) kswapd_low_wmark_hit_quickly = value;
-               else if(!kswapd_high_wmark_hit_quickly && strcmp(name, "kswapd_high_wmark_hit_quickly") == 0) kswapd_high_wmark_hit_quickly = value;
-               else if(!kswapd_skip_congestion_wait && strcmp(name, "kswapd_skip_congestion_wait") == 0) kswapd_skip_congestion_wait = value;
-               else if(!pageoutrun && strcmp(name, "pageoutrun") == 0) pageoutrun = value;
-               else if(!allocstall && strcmp(name, "allocstall") == 0) allocstall = value;
-               else if(!pgrotated && strcmp(name, "pgrotated") == 0) pgrotated = value;
-               else if(!compact_blocks_moved && strcmp(name, "compact_blocks_moved") == 0) compact_blocks_moved = value;
-               else if(!compact_pages_moved && strcmp(name, "compact_pages_moved") == 0) compact_pages_moved = value;
-               else if(!compact_pagemigrate_failed && strcmp(name, "compact_pagemigrate_failed") == 0) compact_pagemigrate_failed = value;
-               else if(!compact_stall && strcmp(name, "compact_stall") == 0) compact_stall = value;
-               else if(!compact_fail && strcmp(name, "compact_fail") == 0) compact_fail = value;
-               else if(!compact_success && strcmp(name, "compact_success") == 0) compact_success = value;
-               else if(!htlb_buddy_alloc_success && strcmp(name, "htlb_buddy_alloc_success") == 0) htlb_buddy_alloc_success = value;
-               else if(!htlb_buddy_alloc_fail && strcmp(name, "htlb_buddy_alloc_fail") == 0) htlb_buddy_alloc_fail = value;
-               else if(!unevictable_pgs_culled && strcmp(name, "unevictable_pgs_culled") == 0) unevictable_pgs_culled = value;
-               else if(!unevictable_pgs_scanned && strcmp(name, "unevictable_pgs_scanned") == 0) unevictable_pgs_scanned = value;
-               else if(!unevictable_pgs_rescued && strcmp(name, "unevictable_pgs_rescued") == 0) unevictable_pgs_rescued = value;
-               else if(!unevictable_pgs_mlocked && strcmp(name, "unevictable_pgs_mlocked") == 0) unevictable_pgs_mlocked = value;
-               else if(!unevictable_pgs_munlocked && strcmp(name, "unevictable_pgs_munlocked") == 0) unevictable_pgs_munlocked = value;
-               else if(!unevictable_pgs_cleared && strcmp(name, "unevictable_pgs_cleared") == 0) unevictable_pgs_cleared = value;
-               else if(!unevictable_pgs_stranded && strcmp(name, "unevictable_pgs_stranded") == 0) unevictable_pgs_stranded = value;
-               else if(!unevictable_pgs_mlockfreed && strcmp(name, "unevictable_pgs_mlockfreed") == 0) unevictable_pgs_mlockfreed = value;
-               else if(!thp_fault_alloc && strcmp(name, "thp_fault_alloc") == 0) thp_fault_alloc = value;
-               else if(!thp_fault_fallback && strcmp(name, "thp_fault_fallback") == 0) thp_fault_fallback = value;
-               else if(!thp_collapse_alloc && strcmp(name, "thp_collapse_alloc") == 0) thp_collapse_alloc = value;
-               else if(!thp_collapse_alloc_failed && strcmp(name, "thp_collapse_alloc_failed") == 0) thp_collapse_alloc_failed = value;
-               else if(!thp_split && strcmp(name, "thp_split") == 0) thp_split = value;
-       }
-
-       RRDSET *st;
-
-       // --------------------------------------------------------------------
-       
-       if(do_swapio) {
-               st = rrdset_find("system.swapio");
-               if(!st) {
-                       st = rrdset_create("system", "swapio", NULL, "mem", "Swap I/O", "kilobytes/s", 250, update_every, RRDSET_TYPE_AREA);
-
-                       rrddim_add(st, "in",  NULL, sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
-                       rrddim_add(st, "out", NULL, -sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
-               }
-               else rrdset_next(st);
-
-               rrddim_set(st, "in", pswpin);
-               rrddim_set(st, "out", pswpout);
-               rrdset_done(st);
-       }
-
-       // --------------------------------------------------------------------
-       
-       if(do_io) {
-               st = rrdset_find("system.io");
-               if(!st) {
-                       st = rrdset_create("system", "io", NULL, "disk", "Disk I/O", "kilobytes/s", 150, update_every, RRDSET_TYPE_AREA);
-
-                       rrddim_add(st, "in",  NULL,  1, 1, RRDDIM_INCREMENTAL);
-                       rrddim_add(st, "out", NULL, -1, 1, RRDDIM_INCREMENTAL);
-               }
-               else rrdset_next(st);
-
-               rrddim_set(st, "in", pgpgin);
-               rrddim_set(st, "out", pgpgout);
-               rrdset_done(st);
-       }
-
-       // --------------------------------------------------------------------
-       
-       if(do_pgfaults) {
-               st = rrdset_find("system.pgfaults");
-               if(!st) {
-                       st = rrdset_create("system", "pgfaults", NULL, "mem", "Memory Page Faults", "page faults/s", 500, update_every, RRDSET_TYPE_LINE);
-                       st->isdetail = 1;
-
-                       rrddim_add(st, "minor",  NULL,  1, 1, RRDDIM_INCREMENTAL);
-                       rrddim_add(st, "major", NULL, -1, 1, RRDDIM_INCREMENTAL);
-               }
-               else rrdset_next(st);
-
-               rrddim_set(st, "minor", pgfault);
-               rrddim_set(st, "major", pgmajfault);
-               rrdset_done(st);
-       }
-
-       return 0;
+    (void)dt;
+
+    static procfile *ff = NULL;
+    static int do_swapio = -1, do_io = -1, do_pgfaults = -1;
+
+    // static uint32_t hash_allocstall = 0;
+    // static uint32_t hash_compact_blocks_moved = 0;
+    // static uint32_t hash_compact_fail = 0;
+    // static uint32_t hash_compact_pagemigrate_failed = 0;
+    // static uint32_t hash_compact_pages_moved = 0;
+    // static uint32_t hash_compact_stall = 0;
+    // static uint32_t hash_compact_success = 0;
+    // static uint32_t hash_htlb_buddy_alloc_fail = 0;
+    // static uint32_t hash_htlb_buddy_alloc_success = 0;
+    // static uint32_t hash_kswapd_high_wmark_hit_quickly = 0;
+    // static uint32_t hash_kswapd_inodesteal = 0;
+    // static uint32_t hash_kswapd_low_wmark_hit_quickly = 0;
+    // static uint32_t hash_kswapd_skip_congestion_wait = 0;
+    // static uint32_t hash_nr_active_anon = 0;
+    // static uint32_t hash_nr_active_file = 0;
+    // static uint32_t hash_nr_anon_pages = 0;
+    // static uint32_t hash_nr_anon_transparent_hugepages = 0;
+    // static uint32_t hash_nr_bounce = 0;
+    // static uint32_t hash_nr_dirtied = 0;
+    // static uint32_t hash_nr_dirty = 0;
+    // static uint32_t hash_nr_dirty_background_threshold = 0;
+    // static uint32_t hash_nr_dirty_threshold = 0;
+    // static uint32_t hash_nr_file_pages = 0;
+    // static uint32_t hash_nr_free_pages = 0;
+    // static uint32_t hash_nr_inactive_anon = 0;
+    // static uint32_t hash_nr_inactive_file = 0;
+    // static uint32_t hash_nr_isolated_anon = 0;
+    // static uint32_t hash_nr_isolated_file = 0;
+    // static uint32_t hash_nr_kernel_stack = 0;
+    // static uint32_t hash_nr_mapped = 0;
+    // static uint32_t hash_nr_mlock = 0;
+    // static uint32_t hash_nr_page_table_pages = 0;
+    // static uint32_t hash_nr_shmem = 0;
+    // static uint32_t hash_nr_slab_reclaimable = 0;
+    // static uint32_t hash_nr_slab_unreclaimable = 0;
+    // static uint32_t hash_nr_unevictable = 0;
+    // static uint32_t hash_nr_unstable = 0;
+    // static uint32_t hash_nr_vmscan_immediate_reclaim = 0;
+    // static uint32_t hash_nr_vmscan_write = 0;
+    // static uint32_t hash_nr_writeback = 0;
+    // static uint32_t hash_nr_writeback_temp = 0;
+    // static uint32_t hash_nr_written = 0;
+    // static uint32_t hash_pageoutrun = 0;
+    // static uint32_t hash_pgactivate = 0;
+    // static uint32_t hash_pgalloc_dma = 0;
+    // static uint32_t hash_pgalloc_dma32 = 0;
+    // static uint32_t hash_pgalloc_movable = 0;
+    // static uint32_t hash_pgalloc_normal = 0;
+    // static uint32_t hash_pgdeactivate = 0;
+    static uint32_t hash_pgfault = 0;
+    // static uint32_t hash_pgfree = 0;
+    // static uint32_t hash_pginodesteal = 0;
+    static uint32_t hash_pgmajfault = 0;
+    static uint32_t hash_pgpgin = 0;
+    static uint32_t hash_pgpgout = 0;
+    // static uint32_t hash_pgrefill_dma = 0;
+    // static uint32_t hash_pgrefill_dma32 = 0;
+    // static uint32_t hash_pgrefill_movable = 0;
+    // static uint32_t hash_pgrefill_normal = 0;
+    // static uint32_t hash_pgrotated = 0;
+    // static uint32_t hash_pgscan_direct_dma = 0;
+    // static uint32_t hash_pgscan_direct_dma32 = 0;
+    // static uint32_t hash_pgscan_direct_movable = 0;
+    // static uint32_t hash_pgscan_direct_normal = 0;
+    // static uint32_t hash_pgscan_kswapd_dma = 0;
+    // static uint32_t hash_pgscan_kswapd_dma32 = 0;
+    // static uint32_t hash_pgscan_kswapd_movable = 0;
+    // static uint32_t hash_pgscan_kswapd_normal = 0;
+    // static uint32_t hash_pgsteal_direct_dma = 0;
+    // static uint32_t hash_pgsteal_direct_dma32 = 0;
+    // static uint32_t hash_pgsteal_direct_movable = 0;
+    // static uint32_t hash_pgsteal_direct_normal = 0;
+    // static uint32_t hash_pgsteal_kswapd_dma = 0;
+    // static uint32_t hash_pgsteal_kswapd_dma32 = 0;
+    // static uint32_t hash_pgsteal_kswapd_movable = 0;
+    // static uint32_t hash_pgsteal_kswapd_normal = 0;
+    static uint32_t hash_pswpin = 0;
+    static uint32_t hash_pswpout = 0;
+    // static uint32_t hash_slabs_scanned = 0;
+    // static uint32_t hash_thp_collapse_alloc = 0;
+    // static uint32_t hash_thp_collapse_alloc_failed = 0;
+    // static uint32_t hash_thp_fault_alloc = 0;
+    // static uint32_t hash_thp_fault_fallback = 0;
+    // static uint32_t hash_thp_split = 0;
+    // static uint32_t hash_unevictable_pgs_cleared = 0;
+    // static uint32_t hash_unevictable_pgs_culled = 0;
+    // static uint32_t hash_unevictable_pgs_mlocked = 0;
+    // static uint32_t hash_unevictable_pgs_mlockfreed = 0;
+    // static uint32_t hash_unevictable_pgs_munlocked = 0;
+    // static uint32_t hash_unevictable_pgs_rescued = 0;
+    // static uint32_t hash_unevictable_pgs_scanned = 0;
+    // static uint32_t hash_unevictable_pgs_stranded = 0;
+
+    if(unlikely(do_swapio == -1)) {
+        do_swapio = config_get_boolean_ondemand("plugin:proc:/proc/vmstat", "swap i/o", CONFIG_ONDEMAND_ONDEMAND);
+        do_io = config_get_boolean("plugin:proc:/proc/vmstat", "disk i/o", 1);
+        do_pgfaults = config_get_boolean("plugin:proc:/proc/vmstat", "memory page faults", 1);
+
+        // hash_allocstall = simple_hash("allocstall");
+        // hash_compact_blocks_moved = simple_hash("compact_blocks_moved");
+        // hash_compact_fail = simple_hash("compact_fail");
+        // hash_compact_pagemigrate_failed = simple_hash("compact_pagemigrate_failed");
+        // hash_compact_pages_moved = simple_hash("compact_pages_moved");
+        // hash_compact_stall = simple_hash("compact_stall");
+        // hash_compact_success = simple_hash("compact_success");
+        // hash_htlb_buddy_alloc_fail = simple_hash("htlb_buddy_alloc_fail");
+        // hash_htlb_buddy_alloc_success = simple_hash("htlb_buddy_alloc_success");
+        // hash_kswapd_high_wmark_hit_quickly = simple_hash("kswapd_high_wmark_hit_quickly");
+        // hash_kswapd_inodesteal = simple_hash("kswapd_inodesteal");
+        // hash_kswapd_low_wmark_hit_quickly = simple_hash("kswapd_low_wmark_hit_quickly");
+        // hash_kswapd_skip_congestion_wait = simple_hash("kswapd_skip_congestion_wait");
+        // hash_nr_active_anon = simple_hash("nr_active_anon");
+        // hash_nr_active_file = simple_hash("nr_active_file");
+        // hash_nr_anon_pages = simple_hash("nr_anon_pages");
+        // hash_nr_anon_transparent_hugepages = simple_hash("nr_anon_transparent_hugepages");
+        // hash_nr_bounce = simple_hash("nr_bounce");
+        // hash_nr_dirtied = simple_hash("nr_dirtied");
+        // hash_nr_dirty = simple_hash("nr_dirty");
+        // hash_nr_dirty_background_threshold = simple_hash("nr_dirty_background_threshold");
+        // hash_nr_dirty_threshold = simple_hash("nr_dirty_threshold");
+        // hash_nr_file_pages = simple_hash("nr_file_pages");
+        // hash_nr_free_pages = simple_hash("nr_free_pages");
+        // hash_nr_inactive_anon = simple_hash("nr_inactive_anon");
+        // hash_nr_inactive_file = simple_hash("nr_inactive_file");
+        // hash_nr_isolated_anon = simple_hash("nr_isolated_anon");
+        // hash_nr_isolated_file = simple_hash("nr_isolated_file");
+        // hash_nr_kernel_stack = simple_hash("nr_kernel_stack");
+        // hash_nr_mapped = simple_hash("nr_mapped");
+        // hash_nr_mlock = simple_hash("nr_mlock");
+        // hash_nr_page_table_pages = simple_hash("nr_page_table_pages");
+        // hash_nr_shmem = simple_hash("nr_shmem");
+        // hash_nr_slab_reclaimable = simple_hash("nr_slab_reclaimable");
+        // hash_nr_slab_unreclaimable = simple_hash("nr_slab_unreclaimable");
+        // hash_nr_unevictable = simple_hash("nr_unevictable");
+        // hash_nr_unstable = simple_hash("nr_unstable");
+        // hash_nr_vmscan_immediate_reclaim = simple_hash("nr_vmscan_immediate_reclaim");
+        // hash_nr_vmscan_write = simple_hash("nr_vmscan_write");
+        // hash_nr_writeback = simple_hash("nr_writeback");
+        // hash_nr_writeback_temp = simple_hash("nr_writeback_temp");
+        // hash_nr_written = simple_hash("nr_written");
+        // hash_pageoutrun = simple_hash("pageoutrun");
+        // hash_pgactivate = simple_hash("pgactivate");
+        // hash_pgalloc_dma = simple_hash("pgalloc_dma");
+        // hash_pgalloc_dma32 = simple_hash("pgalloc_dma32");
+        // hash_pgalloc_movable = simple_hash("pgalloc_movable");
+        // hash_pgalloc_normal = simple_hash("pgalloc_normal");
+        // hash_pgdeactivate = simple_hash("pgdeactivate");
+        hash_pgfault = simple_hash("pgfault");
+        // hash_pgfree = simple_hash("pgfree");
+        // hash_pginodesteal = simple_hash("pginodesteal");
+        hash_pgmajfault = simple_hash("pgmajfault");
+        hash_pgpgin = simple_hash("pgpgin");
+        hash_pgpgout = simple_hash("pgpgout");
+        // hash_pgrefill_dma = simple_hash("pgrefill_dma");
+        // hash_pgrefill_dma32 = simple_hash("pgrefill_dma32");
+        // hash_pgrefill_movable = simple_hash("pgrefill_movable");
+        // hash_pgrefill_normal = simple_hash("pgrefill_normal");
+        // hash_pgrotated = simple_hash("pgrotated");
+        // hash_pgscan_direct_dma = simple_hash("pgscan_direct_dma");
+        // hash_pgscan_direct_dma32 = simple_hash("pgscan_direct_dma32");
+        // hash_pgscan_direct_movable = simple_hash("pgscan_direct_movable");
+        // hash_pgscan_direct_normal = simple_hash("pgscan_direct_normal");
+        // hash_pgscan_kswapd_dma = simple_hash("pgscan_kswapd_dma");
+        // hash_pgscan_kswapd_dma32 = simple_hash("pgscan_kswapd_dma32");
+        // hash_pgscan_kswapd_movable = simple_hash("pgscan_kswapd_movable");
+        // hash_pgscan_kswapd_normal = simple_hash("pgscan_kswapd_normal");
+        // hash_pgsteal_direct_dma = simple_hash("pgsteal_direct_dma");
+        // hash_pgsteal_direct_dma32 = simple_hash("pgsteal_direct_dma32");
+        // hash_pgsteal_direct_movable = simple_hash("pgsteal_direct_movable");
+        // hash_pgsteal_direct_normal = simple_hash("pgsteal_direct_normal");
+        // hash_pgsteal_kswapd_dma = simple_hash("pgsteal_kswapd_dma");
+        // hash_pgsteal_kswapd_dma32 = simple_hash("pgsteal_kswapd_dma32");
+        // hash_pgsteal_kswapd_movable = simple_hash("pgsteal_kswapd_movable");
+        // hash_pgsteal_kswapd_normal = simple_hash("pgsteal_kswapd_normal");
+        hash_pswpin = simple_hash("pswpin");
+        hash_pswpout = simple_hash("pswpout");
+        // hash_slabs_scanned = simple_hash("slabs_scanned");
+        // hash_thp_collapse_alloc = simple_hash("thp_collapse_alloc");
+        // hash_thp_collapse_alloc_failed = simple_hash("thp_collapse_alloc_failed");
+        // hash_thp_fault_alloc = simple_hash("thp_fault_alloc");
+        // hash_thp_fault_fallback = simple_hash("thp_fault_fallback");
+        // hash_thp_split = simple_hash("thp_split");
+        // hash_unevictable_pgs_cleared = simple_hash("unevictable_pgs_cleared");
+        // hash_unevictable_pgs_culled = simple_hash("unevictable_pgs_culled");
+        // hash_unevictable_pgs_mlocked = simple_hash("unevictable_pgs_mlocked");
+        // hash_unevictable_pgs_mlockfreed = simple_hash("unevictable_pgs_mlockfreed");
+        // hash_unevictable_pgs_munlocked = simple_hash("unevictable_pgs_munlocked");
+        // hash_unevictable_pgs_rescued = simple_hash("unevictable_pgs_rescued");
+        // hash_unevictable_pgs_scanned = simple_hash("unevictable_pgs_scanned");
+        // hash_unevictable_pgs_stranded = simple_hash("unevictable_pgs_stranded");
+    }
+
+    if(unlikely(!ff)) {
+        char filename[FILENAME_MAX + 1];
+        snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/vmstat");
+        ff = procfile_open(config_get("plugin:proc:/proc/vmstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
+        if(unlikely(!ff)) return 1;
+    }
+
+    ff = procfile_readall(ff);
+    if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time
+
+    uint32_t lines = procfile_lines(ff), l;
+
+    // unsigned long long allocstall = 0ULL;
+    // unsigned long long compact_blocks_moved = 0ULL;
+    // unsigned long long compact_fail = 0ULL;
+    // unsigned long long compact_pagemigrate_failed = 0ULL;
+    // unsigned long long compact_pages_moved = 0ULL;
+    // unsigned long long compact_stall = 0ULL;
+    // unsigned long long compact_success = 0ULL;
+    // unsigned long long htlb_buddy_alloc_fail = 0ULL;
+    // unsigned long long htlb_buddy_alloc_success = 0ULL;
+    // unsigned long long kswapd_high_wmark_hit_quickly = 0ULL;
+    // unsigned long long kswapd_inodesteal = 0ULL;
+    // unsigned long long kswapd_low_wmark_hit_quickly = 0ULL;
+    // unsigned long long kswapd_skip_congestion_wait = 0ULL;
+    // unsigned long long nr_active_anon = 0ULL;
+    // unsigned long long nr_active_file = 0ULL;
+    // unsigned long long nr_anon_pages = 0ULL;
+    // unsigned long long nr_anon_transparent_hugepages = 0ULL;
+    // unsigned long long nr_bounce = 0ULL;
+    // unsigned long long nr_dirtied = 0ULL;
+    // unsigned long long nr_dirty = 0ULL;
+    // unsigned long long nr_dirty_background_threshold = 0ULL;
+    // unsigned long long nr_dirty_threshold = 0ULL;
+    // unsigned long long nr_file_pages = 0ULL;
+    // unsigned long long nr_free_pages = 0ULL;
+    // unsigned long long nr_inactive_anon = 0ULL;
+    // unsigned long long nr_inactive_file = 0ULL;
+    // unsigned long long nr_isolated_anon = 0ULL;
+    // unsigned long long nr_isolated_file = 0ULL;
+    // unsigned long long nr_kernel_stack = 0ULL;
+    // unsigned long long nr_mapped = 0ULL;
+    // unsigned long long nr_mlock = 0ULL;
+    // unsigned long long nr_page_table_pages = 0ULL;
+    // unsigned long long nr_shmem = 0ULL;
+    // unsigned long long nr_slab_reclaimable = 0ULL;
+    // unsigned long long nr_slab_unreclaimable = 0ULL;
+    // unsigned long long nr_unevictable = 0ULL;
+    // unsigned long long nr_unstable = 0ULL;
+    // unsigned long long nr_vmscan_immediate_reclaim = 0ULL;
+    // unsigned long long nr_vmscan_write = 0ULL;
+    // unsigned long long nr_writeback = 0ULL;
+    // unsigned long long nr_writeback_temp = 0ULL;
+    // unsigned long long nr_written = 0ULL;
+    // unsigned long long pageoutrun = 0ULL;
+    // unsigned long long pgactivate = 0ULL;
+    // unsigned long long pgalloc_dma = 0ULL;
+    // unsigned long long pgalloc_dma32 = 0ULL;
+    // unsigned long long pgalloc_movable = 0ULL;
+    // unsigned long long pgalloc_normal = 0ULL;
+    // unsigned long long pgdeactivate = 0ULL;
+    unsigned long long pgfault = 0ULL;
+    // unsigned long long pgfree = 0ULL;
+    // unsigned long long pginodesteal = 0ULL;
+    unsigned long long pgmajfault = 0ULL;
+    unsigned long long pgpgin = 0ULL;
+    unsigned long long pgpgout = 0ULL;
+    // unsigned long long pgrefill_dma = 0ULL;
+    // unsigned long long pgrefill_dma32 = 0ULL;
+    // unsigned long long pgrefill_movable = 0ULL;
+    // unsigned long long pgrefill_normal = 0ULL;
+    // unsigned long long pgrotated = 0ULL;
+    // unsigned long long pgscan_direct_dma = 0ULL;
+    // unsigned long long pgscan_direct_dma32 = 0ULL;
+    // unsigned long long pgscan_direct_movable = 0ULL;
+    // unsigned long long pgscan_direct_normal = 0ULL;
+    // unsigned long long pgscan_kswapd_dma = 0ULL;
+    // unsigned long long pgscan_kswapd_dma32 = 0ULL;
+    // unsigned long long pgscan_kswapd_movable = 0ULL;
+    // unsigned long long pgscan_kswapd_normal = 0ULL;
+    // unsigned long long pgsteal_direct_dma = 0ULL;
+    // unsigned long long pgsteal_direct_dma32 = 0ULL;
+    // unsigned long long pgsteal_direct_movable = 0ULL;
+    // unsigned long long pgsteal_direct_normal = 0ULL;
+    // unsigned long long pgsteal_kswapd_dma = 0ULL;
+    // unsigned long long pgsteal_kswapd_dma32 = 0ULL;
+    // unsigned long long pgsteal_kswapd_movable = 0ULL;
+    // unsigned long long pgsteal_kswapd_normal = 0ULL;
+    unsigned long long pswpin = 0ULL;
+    unsigned long long pswpout = 0ULL;
+    // unsigned long long slabs_scanned = 0ULL;
+    // unsigned long long thp_collapse_alloc = 0ULL;
+    // unsigned long long thp_collapse_alloc_failed = 0ULL;
+    // unsigned long long thp_fault_alloc = 0ULL;
+    // unsigned long long thp_fault_fallback = 0ULL;
+    // unsigned long long thp_split = 0ULL;
+    // unsigned long long unevictable_pgs_cleared = 0ULL;
+    // unsigned long long unevictable_pgs_culled = 0ULL;
+    // unsigned long long unevictable_pgs_mlocked = 0ULL;
+    // unsigned long long unevictable_pgs_mlockfreed = 0ULL;
+    // unsigned long long unevictable_pgs_munlocked = 0ULL;
+    // unsigned long long unevictable_pgs_rescued = 0ULL;
+    // unsigned long long unevictable_pgs_scanned = 0ULL;
+    // unsigned long long unevictable_pgs_stranded = 0ULL;
+
+    for(l = 0; l < lines ;l++) {
+        uint32_t words = procfile_linewords(ff, l);
+        if(unlikely(words < 2)) {
+            if(unlikely(words)) error("Cannot read /proc/vmstat line %u. Expected 2 params, read %u.", l, words);
+            continue;
+        }
+
+        char *name = procfile_lineword(ff, l, 0);
+        char * value = procfile_lineword(ff, l, 1);
+        if(unlikely(!name || !*name || !value || !*value)) continue;
+
+        uint32_t hash = simple_hash(name);
+
+        if(unlikely(0)) ;
+        // else if(unlikely(hash == hash_allocstall && strcmp(name, "allocstall") == 0)) allocstall = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_blocks_moved && strcmp(name, "compact_blocks_moved") == 0)) compact_blocks_moved = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_fail && strcmp(name, "compact_fail") == 0)) compact_fail = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_pagemigrate_failed && strcmp(name, "compact_pagemigrate_failed") == 0)) compact_pagemigrate_failed = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_pages_moved && strcmp(name, "compact_pages_moved") == 0)) compact_pages_moved = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_stall && strcmp(name, "compact_stall") == 0)) compact_stall = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_compact_success && strcmp(name, "compact_success") == 0)) compact_success = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_htlb_buddy_alloc_fail && strcmp(name, "htlb_buddy_alloc_fail") == 0)) htlb_buddy_alloc_fail = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_htlb_buddy_alloc_success && strcmp(name, "htlb_buddy_alloc_success") == 0)) htlb_buddy_alloc_success = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_kswapd_high_wmark_hit_quickly && strcmp(name, "kswapd_high_wmark_hit_quickly") == 0)) kswapd_high_wmark_hit_quickly = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_kswapd_inodesteal && strcmp(name, "kswapd_inodesteal") == 0)) kswapd_inodesteal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_kswapd_low_wmark_hit_quickly && strcmp(name, "kswapd_low_wmark_hit_quickly") == 0)) kswapd_low_wmark_hit_quickly = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_kswapd_skip_congestion_wait && strcmp(name, "kswapd_skip_congestion_wait") == 0)) kswapd_skip_congestion_wait = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_active_anon && strcmp(name, "nr_active_anon") == 0)) nr_active_anon = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_active_file && strcmp(name, "nr_active_file") == 0)) nr_active_file = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_anon_pages && strcmp(name, "nr_anon_pages") == 0)) nr_anon_pages = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_anon_transparent_hugepages && strcmp(name, "nr_anon_transparent_hugepages") == 0)) nr_anon_transparent_hugepages = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_bounce && strcmp(name, "nr_bounce") == 0)) nr_bounce = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_dirtied && strcmp(name, "nr_dirtied") == 0)) nr_dirtied = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_dirty && strcmp(name, "nr_dirty") == 0)) nr_dirty = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_dirty_background_threshold && strcmp(name, "nr_dirty_background_threshold") == 0)) nr_dirty_background_threshold = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_dirty_threshold && strcmp(name, "nr_dirty_threshold") == 0)) nr_dirty_threshold = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_file_pages && strcmp(name, "nr_file_pages") == 0)) nr_file_pages = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_free_pages && strcmp(name, "nr_free_pages") == 0)) nr_free_pages = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_inactive_anon && strcmp(name, "nr_inactive_anon") == 0)) nr_inactive_anon = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_inactive_file && strcmp(name, "nr_inactive_file") == 0)) nr_inactive_file = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_isolated_anon && strcmp(name, "nr_isolated_anon") == 0)) nr_isolated_anon = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_isolated_file && strcmp(name, "nr_isolated_file") == 0)) nr_isolated_file = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_kernel_stack && strcmp(name, "nr_kernel_stack") == 0)) nr_kernel_stack = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_mapped && strcmp(name, "nr_mapped") == 0)) nr_mapped = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_mlock && strcmp(name, "nr_mlock") == 0)) nr_mlock = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_page_table_pages && strcmp(name, "nr_page_table_pages") == 0)) nr_page_table_pages = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_shmem && strcmp(name, "nr_shmem") == 0)) nr_shmem = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_slab_reclaimable && strcmp(name, "nr_slab_reclaimable") == 0)) nr_slab_reclaimable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_slab_unreclaimable && strcmp(name, "nr_slab_unreclaimable") == 0)) nr_slab_unreclaimable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_unevictable && strcmp(name, "nr_unevictable") == 0)) nr_unevictable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_unstable && strcmp(name, "nr_unstable") == 0)) nr_unstable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_vmscan_immediate_reclaim && strcmp(name, "nr_vmscan_immediate_reclaim") == 0)) nr_vmscan_immediate_reclaim = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_vmscan_write && strcmp(name, "nr_vmscan_write") == 0)) nr_vmscan_write = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_writeback && strcmp(name, "nr_writeback") == 0)) nr_writeback = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_writeback_temp && strcmp(name, "nr_writeback_temp") == 0)) nr_writeback_temp = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_nr_written && strcmp(name, "nr_written") == 0)) nr_written = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pageoutrun && strcmp(name, "pageoutrun") == 0)) pageoutrun = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgactivate && strcmp(name, "pgactivate") == 0)) pgactivate = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgalloc_dma && strcmp(name, "pgalloc_dma") == 0)) pgalloc_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgalloc_dma32 && strcmp(name, "pgalloc_dma32") == 0)) pgalloc_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgalloc_movable && strcmp(name, "pgalloc_movable") == 0)) pgalloc_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgalloc_normal && strcmp(name, "pgalloc_normal") == 0)) pgalloc_normal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgdeactivate && strcmp(name, "pgdeactivate") == 0)) pgdeactivate = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pgfault && strcmp(name, "pgfault") == 0)) pgfault = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgfree && strcmp(name, "pgfree") == 0)) pgfree = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pginodesteal && strcmp(name, "pginodesteal") == 0)) pginodesteal = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pgmajfault && strcmp(name, "pgmajfault") == 0)) pgmajfault = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pgpgin && strcmp(name, "pgpgin") == 0)) pgpgin = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pgpgout && strcmp(name, "pgpgout") == 0)) pgpgout = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgrefill_dma && strcmp(name, "pgrefill_dma") == 0)) pgrefill_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgrefill_dma32 && strcmp(name, "pgrefill_dma32") == 0)) pgrefill_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgrefill_movable && strcmp(name, "pgrefill_movable") == 0)) pgrefill_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgrefill_normal && strcmp(name, "pgrefill_normal") == 0)) pgrefill_normal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgrotated && strcmp(name, "pgrotated") == 0)) pgrotated = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_direct_dma && strcmp(name, "pgscan_direct_dma") == 0)) pgscan_direct_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_direct_dma32 && strcmp(name, "pgscan_direct_dma32") == 0)) pgscan_direct_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_direct_movable && strcmp(name, "pgscan_direct_movable") == 0)) pgscan_direct_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_direct_normal && strcmp(name, "pgscan_direct_normal") == 0)) pgscan_direct_normal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_kswapd_dma && strcmp(name, "pgscan_kswapd_dma") == 0)) pgscan_kswapd_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_kswapd_dma32 && strcmp(name, "pgscan_kswapd_dma32") == 0)) pgscan_kswapd_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_kswapd_movable && strcmp(name, "pgscan_kswapd_movable") == 0)) pgscan_kswapd_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgscan_kswapd_normal && strcmp(name, "pgscan_kswapd_normal") == 0)) pgscan_kswapd_normal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_direct_dma && strcmp(name, "pgsteal_direct_dma") == 0)) pgsteal_direct_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_direct_dma32 && strcmp(name, "pgsteal_direct_dma32") == 0)) pgsteal_direct_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_direct_movable && strcmp(name, "pgsteal_direct_movable") == 0)) pgsteal_direct_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_direct_normal && strcmp(name, "pgsteal_direct_normal") == 0)) pgsteal_direct_normal = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_kswapd_dma && strcmp(name, "pgsteal_kswapd_dma") == 0)) pgsteal_kswapd_dma = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_kswapd_dma32 && strcmp(name, "pgsteal_kswapd_dma32") == 0)) pgsteal_kswapd_dma32 = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_kswapd_movable && strcmp(name, "pgsteal_kswapd_movable") == 0)) pgsteal_kswapd_movable = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_pgsteal_kswapd_normal && strcmp(name, "pgsteal_kswapd_normal") == 0)) pgsteal_kswapd_normal = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pswpin && strcmp(name, "pswpin") == 0)) pswpin = strtoull(value, NULL, 10);
+        else if(unlikely(hash == hash_pswpout && strcmp(name, "pswpout") == 0)) pswpout = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_slabs_scanned && strcmp(name, "slabs_scanned") == 0)) slabs_scanned = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_thp_collapse_alloc && strcmp(name, "thp_collapse_alloc") == 0)) thp_collapse_alloc = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_thp_collapse_alloc_failed && strcmp(name, "thp_collapse_alloc_failed") == 0)) thp_collapse_alloc_failed = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_thp_fault_alloc && strcmp(name, "thp_fault_alloc") == 0)) thp_fault_alloc = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_thp_fault_fallback && strcmp(name, "thp_fault_fallback") == 0)) thp_fault_fallback = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_thp_split && strcmp(name, "thp_split") == 0)) thp_split = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_cleared && strcmp(name, "unevictable_pgs_cleared") == 0)) unevictable_pgs_cleared = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_culled && strcmp(name, "unevictable_pgs_culled") == 0)) unevictable_pgs_culled = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_mlocked && strcmp(name, "unevictable_pgs_mlocked") == 0)) unevictable_pgs_mlocked = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_mlockfreed && strcmp(name, "unevictable_pgs_mlockfreed") == 0)) unevictable_pgs_mlockfreed = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_munlocked && strcmp(name, "unevictable_pgs_munlocked") == 0)) unevictable_pgs_munlocked = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_rescued && strcmp(name, "unevictable_pgs_rescued") == 0)) unevictable_pgs_rescued = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_scanned && strcmp(name, "unevictable_pgs_scanned") == 0)) unevictable_pgs_scanned = strtoull(value, NULL, 10);
+        // else if(unlikely(hash == hash_unevictable_pgs_stranded && strcmp(name, "unevictable_pgs_stranded") == 0)) unevictable_pgs_stranded = strtoull(value, NULL, 10);
+    }
+
+    // --------------------------------------------------------------------
+
+    if(pswpin || pswpout || do_swapio == CONFIG_ONDEMAND_YES) {
+        do_swapio = CONFIG_ONDEMAND_YES;
+
+        static RRDSET *st_swapio = NULL;
+        if(unlikely(!st_swapio)) {
+            st_swapio = rrdset_create("system", "swapio", NULL, "swap", NULL, "Swap I/O", "kilobytes/s", 250, update_every, RRDSET_TYPE_AREA);
+
+            rrddim_add(st_swapio, "in",  NULL, sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
+            rrddim_add(st_swapio, "out", NULL, -sysconf(_SC_PAGESIZE), 1024, RRDDIM_INCREMENTAL);
+        }
+        else rrdset_next(st_swapio);
+
+        rrddim_set(st_swapio, "in", pswpin);
+        rrddim_set(st_swapio, "out", pswpout);
+        rrdset_done(st_swapio);
+    }
+
+    // --------------------------------------------------------------------
+
+    if(do_io) {
+        static RRDSET *st_io = NULL;
+        if(unlikely(!st_io)) {
+            st_io = rrdset_create("system", "io", NULL, "disk", NULL, "Disk I/O", "kilobytes/s", 150, update_every, RRDSET_TYPE_AREA);
+
+            rrddim_add(st_io, "in",  NULL,  1, 1, RRDDIM_INCREMENTAL);
+            rrddim_add(st_io, "out", NULL, -1, 1, RRDDIM_INCREMENTAL);
+        }
+        else rrdset_next(st_io);
+
+        rrddim_set(st_io, "in", pgpgin);
+        rrddim_set(st_io, "out", pgpgout);
+        rrdset_done(st_io);
+    }
+
+    // --------------------------------------------------------------------
+
+    if(do_pgfaults) {
+        static RRDSET *st_pgfaults = NULL;
+        if(unlikely(!st_pgfaults)) {
+            st_pgfaults = rrdset_create("mem", "pgfaults", NULL, "system", NULL, "Memory Page Faults", "page faults/s", 500, update_every, RRDSET_TYPE_LINE);
+            st_pgfaults->isdetail = 1;
+
+            rrddim_add(st_pgfaults, "minor",  NULL,  1, 1, RRDDIM_INCREMENTAL);
+            rrddim_add(st_pgfaults, "major", NULL, -1, 1, RRDDIM_INCREMENTAL);
+        }
+        else rrdset_next(st_pgfaults);
+
+        rrddim_set(st_pgfaults, "minor", pgfault);
+        rrddim_set(st_pgfaults, "major", pgmajfault);
+        rrdset_done(st_pgfaults);
+    }
+
+    return 0;
 }