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-rw-r--r--collectors/proc.plugin/proc_meminfo.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/collectors/proc.plugin/proc_meminfo.c b/collectors/proc.plugin/proc_meminfo.c
new file mode 100644
index 0000000..ae399c4
--- /dev/null
+++ b/collectors/proc.plugin/proc_meminfo.c
@@ -0,0 +1,519 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "plugin_proc.h"
+
+#define PLUGIN_PROC_MODULE_MEMINFO_NAME "/proc/meminfo"
+#define CONFIG_SECTION_PLUGIN_PROC_MEMINFO "plugin:" PLUGIN_PROC_CONFIG_NAME ":" PLUGIN_PROC_MODULE_MEMINFO_NAME
+
+int do_proc_meminfo(int update_every, usec_t dt) {
+ (void)dt;
+
+ static procfile *ff = NULL;
+ static int do_ram = -1, do_swap = -1, do_hwcorrupt = -1, do_committed = -1, do_writeback = -1, do_kernel = -1, do_slab = -1, do_hugepages = -1, do_transparent_hugepages = -1;
+
+ static ARL_BASE *arl_base = NULL;
+ static ARL_ENTRY *arl_hwcorrupted = NULL, *arl_memavailable = NULL;
+
+ static unsigned long long
+ MemTotal = 0,
+ MemFree = 0,
+ MemAvailable = 0,
+ Buffers = 0,
+ Cached = 0,
+ //SwapCached = 0,
+ //Active = 0,
+ //Inactive = 0,
+ //ActiveAnon = 0,
+ //InactiveAnon = 0,
+ //ActiveFile = 0,
+ //InactiveFile = 0,
+ //Unevictable = 0,
+ //Mlocked = 0,
+ SwapTotal = 0,
+ SwapFree = 0,
+ Dirty = 0,
+ Writeback = 0,
+ //AnonPages = 0,
+ //Mapped = 0,
+ //Shmem = 0,
+ Slab = 0,
+ SReclaimable = 0,
+ SUnreclaim = 0,
+ KernelStack = 0,
+ PageTables = 0,
+ NFS_Unstable = 0,
+ Bounce = 0,
+ WritebackTmp = 0,
+ //CommitLimit = 0,
+ Committed_AS = 0,
+ //VmallocTotal = 0,
+ VmallocUsed = 0,
+ //VmallocChunk = 0,
+ AnonHugePages = 0,
+ ShmemHugePages = 0,
+ HugePages_Total = 0,
+ HugePages_Free = 0,
+ HugePages_Rsvd = 0,
+ HugePages_Surp = 0,
+ Hugepagesize = 0,
+ //DirectMap4k = 0,
+ //DirectMap2M = 0,
+ HardwareCorrupted = 0;
+
+ if(unlikely(!arl_base)) {
+ do_ram = config_get_boolean(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "system ram", 1);
+ do_swap = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "system swap", CONFIG_BOOLEAN_AUTO);
+ do_hwcorrupt = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "hardware corrupted ECC", CONFIG_BOOLEAN_AUTO);
+ do_committed = config_get_boolean(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "committed memory", 1);
+ do_writeback = config_get_boolean(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "writeback memory", 1);
+ do_kernel = config_get_boolean(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "kernel memory", 1);
+ do_slab = config_get_boolean(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "slab memory", 1);
+ do_hugepages = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "hugepages", CONFIG_BOOLEAN_AUTO);
+ do_transparent_hugepages = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "transparent hugepages", CONFIG_BOOLEAN_AUTO);
+
+ arl_base = arl_create("meminfo", NULL, 60);
+ arl_expect(arl_base, "MemTotal", &MemTotal);
+ arl_expect(arl_base, "MemFree", &MemFree);
+ arl_memavailable = arl_expect(arl_base, "MemAvailable", &MemAvailable);
+ arl_expect(arl_base, "Buffers", &Buffers);
+ arl_expect(arl_base, "Cached", &Cached);
+ //arl_expect(arl_base, "SwapCached", &SwapCached);
+ //arl_expect(arl_base, "Active", &Active);
+ //arl_expect(arl_base, "Inactive", &Inactive);
+ //arl_expect(arl_base, "ActiveAnon", &ActiveAnon);
+ //arl_expect(arl_base, "InactiveAnon", &InactiveAnon);
+ //arl_expect(arl_base, "ActiveFile", &ActiveFile);
+ //arl_expect(arl_base, "InactiveFile", &InactiveFile);
+ //arl_expect(arl_base, "Unevictable", &Unevictable);
+ //arl_expect(arl_base, "Mlocked", &Mlocked);
+ arl_expect(arl_base, "SwapTotal", &SwapTotal);
+ arl_expect(arl_base, "SwapFree", &SwapFree);
+ arl_expect(arl_base, "Dirty", &Dirty);
+ arl_expect(arl_base, "Writeback", &Writeback);
+ //arl_expect(arl_base, "AnonPages", &AnonPages);
+ //arl_expect(arl_base, "Mapped", &Mapped);
+ //arl_expect(arl_base, "Shmem", &Shmem);
+ arl_expect(arl_base, "Slab", &Slab);
+ arl_expect(arl_base, "SReclaimable", &SReclaimable);
+ arl_expect(arl_base, "SUnreclaim", &SUnreclaim);
+ arl_expect(arl_base, "KernelStack", &KernelStack);
+ arl_expect(arl_base, "PageTables", &PageTables);
+ arl_expect(arl_base, "NFS_Unstable", &NFS_Unstable);
+ arl_expect(arl_base, "Bounce", &Bounce);
+ arl_expect(arl_base, "WritebackTmp", &WritebackTmp);
+ //arl_expect(arl_base, "CommitLimit", &CommitLimit);
+ arl_expect(arl_base, "Committed_AS", &Committed_AS);
+ //arl_expect(arl_base, "VmallocTotal", &VmallocTotal);
+ arl_expect(arl_base, "VmallocUsed", &VmallocUsed);
+ //arl_expect(arl_base, "VmallocChunk", &VmallocChunk);
+ arl_hwcorrupted = arl_expect(arl_base, "HardwareCorrupted", &HardwareCorrupted);
+ arl_expect(arl_base, "AnonHugePages", &AnonHugePages);
+ arl_expect(arl_base, "ShmemHugePages", &ShmemHugePages);
+ arl_expect(arl_base, "HugePages_Total", &HugePages_Total);
+ arl_expect(arl_base, "HugePages_Free", &HugePages_Free);
+ arl_expect(arl_base, "HugePages_Rsvd", &HugePages_Rsvd);
+ arl_expect(arl_base, "HugePages_Surp", &HugePages_Surp);
+ arl_expect(arl_base, "Hugepagesize", &Hugepagesize);
+ //arl_expect(arl_base, "DirectMap4k", &DirectMap4k);
+ //arl_expect(arl_base, "DirectMap2M", &DirectMap2M);
+ }
+
+ if(unlikely(!ff)) {
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/meminfo");
+ ff = procfile_open(config_get(CONFIG_SECTION_PLUGIN_PROC_MEMINFO, "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
+
+ size_t lines = procfile_lines(ff), l;
+
+ arl_begin(arl_base);
+
+ for(l = 0; l < lines ;l++) {
+ size_t words = procfile_linewords(ff, l);
+ if(unlikely(words < 2)) continue;
+
+ if(unlikely(arl_check(arl_base,
+ procfile_lineword(ff, l, 0),
+ procfile_lineword(ff, l, 1)))) break;
+ }
+
+ // --------------------------------------------------------------------
+
+ // http://stackoverflow.com/questions/3019748/how-to-reliably-measure-available-memory-in-linux
+ unsigned long long MemCached = Cached + SReclaimable;
+ unsigned long long MemUsed = MemTotal - MemFree - MemCached - Buffers;
+
+ if(do_ram) {
+ {
+ static RRDSET *st_system_ram = NULL;
+ static RRDDIM *rd_free = NULL, *rd_used = NULL, *rd_cached = NULL, *rd_buffers = NULL;
+
+ if(unlikely(!st_system_ram)) {
+ st_system_ram = rrdset_create_localhost(
+ "system"
+ , "ram"
+ , NULL
+ , "ram"
+ , NULL
+ , "System RAM"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_SYSTEM_RAM
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rd_free = rrddim_add(st_system_ram, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_used = rrddim_add(st_system_ram, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_cached = rrddim_add(st_system_ram, "cached", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_buffers = rrddim_add(st_system_ram, "buffers", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_system_ram);
+
+ rrddim_set_by_pointer(st_system_ram, rd_free, MemFree);
+ rrddim_set_by_pointer(st_system_ram, rd_used, MemUsed);
+ rrddim_set_by_pointer(st_system_ram, rd_cached, MemCached);
+ rrddim_set_by_pointer(st_system_ram, rd_buffers, Buffers);
+
+ rrdset_done(st_system_ram);
+ }
+
+ if(arl_memavailable->flags & ARL_ENTRY_FLAG_FOUND) {
+ static RRDSET *st_mem_available = NULL;
+ static RRDDIM *rd_avail = NULL;
+
+ if(unlikely(!st_mem_available)) {
+ st_mem_available = rrdset_create_localhost(
+ "mem"
+ , "available"
+ , NULL
+ , "system"
+ , NULL
+ , "Available RAM for applications"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_SYSTEM_AVAILABLE
+ , update_every
+ , RRDSET_TYPE_AREA
+ );
+
+ rd_avail = rrddim_add(st_mem_available, "MemAvailable", "avail", 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_available);
+
+ rrddim_set_by_pointer(st_mem_available, rd_avail, MemAvailable);
+
+ rrdset_done(st_mem_available);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ unsigned long long SwapUsed = SwapTotal - SwapFree;
+
+ if(do_swap == CONFIG_BOOLEAN_YES || SwapTotal || SwapUsed || SwapFree) {
+ do_swap = CONFIG_BOOLEAN_YES;
+
+ static RRDSET *st_system_swap = NULL;
+ static RRDDIM *rd_free = NULL, *rd_used = NULL;
+
+ if(unlikely(!st_system_swap)) {
+ st_system_swap = rrdset_create_localhost(
+ "system"
+ , "swap"
+ , NULL
+ , "swap"
+ , NULL
+ , "System Swap"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_SYSTEM_SWAP
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_flag_set(st_system_swap, RRDSET_FLAG_DETAIL);
+
+ rd_free = rrddim_add(st_system_swap, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_used = rrddim_add(st_system_swap, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_system_swap);
+
+ rrddim_set_by_pointer(st_system_swap, rd_used, SwapUsed);
+ rrddim_set_by_pointer(st_system_swap, rd_free, SwapFree);
+
+ rrdset_done(st_system_swap);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(arl_hwcorrupted->flags & ARL_ENTRY_FLAG_FOUND && (do_hwcorrupt == CONFIG_BOOLEAN_YES || (do_hwcorrupt == CONFIG_BOOLEAN_AUTO && HardwareCorrupted > 0))) {
+ do_hwcorrupt = CONFIG_BOOLEAN_YES;
+
+ static RRDSET *st_mem_hwcorrupt = NULL;
+ static RRDDIM *rd_corrupted = NULL;
+
+ if(unlikely(!st_mem_hwcorrupt)) {
+ st_mem_hwcorrupt = rrdset_create_localhost(
+ "mem"
+ , "hwcorrupt"
+ , NULL
+ , "ecc"
+ , NULL
+ , "Corrupted Memory, detected by ECC"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_HW
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(st_mem_hwcorrupt, RRDSET_FLAG_DETAIL);
+
+ rd_corrupted = rrddim_add(st_mem_hwcorrupt, "HardwareCorrupted", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_hwcorrupt);
+
+ rrddim_set_by_pointer(st_mem_hwcorrupt, rd_corrupted, HardwareCorrupted);
+
+ rrdset_done(st_mem_hwcorrupt);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_committed) {
+ static RRDSET *st_mem_committed = NULL;
+ static RRDDIM *rd_committed = NULL;
+
+ if(unlikely(!st_mem_committed)) {
+ st_mem_committed = rrdset_create_localhost(
+ "mem"
+ , "committed"
+ , NULL
+ , "system"
+ , NULL
+ , "Committed (Allocated) Memory"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_SYSTEM_COMMITTED
+ , update_every
+ , RRDSET_TYPE_AREA
+ );
+
+ rrdset_flag_set(st_mem_committed, RRDSET_FLAG_DETAIL);
+
+ rd_committed = rrddim_add(st_mem_committed, "Committed_AS", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_committed);
+
+ rrddim_set_by_pointer(st_mem_committed, rd_committed, Committed_AS);
+
+ rrdset_done(st_mem_committed);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_writeback) {
+ static RRDSET *st_mem_writeback = NULL;
+ static RRDDIM *rd_dirty = NULL, *rd_writeback = NULL, *rd_fusewriteback = NULL, *rd_nfs_writeback = NULL, *rd_bounce = NULL;
+
+ if(unlikely(!st_mem_writeback)) {
+ st_mem_writeback = rrdset_create_localhost(
+ "mem"
+ , "writeback"
+ , NULL
+ , "kernel"
+ , NULL
+ , "Writeback Memory"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_KERNEL
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+ rrdset_flag_set(st_mem_writeback, RRDSET_FLAG_DETAIL);
+
+ rd_dirty = rrddim_add(st_mem_writeback, "Dirty", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_writeback = rrddim_add(st_mem_writeback, "Writeback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_fusewriteback = rrddim_add(st_mem_writeback, "FuseWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_nfs_writeback = rrddim_add(st_mem_writeback, "NfsWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_bounce = rrddim_add(st_mem_writeback, "Bounce", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_writeback);
+
+ rrddim_set_by_pointer(st_mem_writeback, rd_dirty, Dirty);
+ rrddim_set_by_pointer(st_mem_writeback, rd_writeback, Writeback);
+ rrddim_set_by_pointer(st_mem_writeback, rd_fusewriteback, WritebackTmp);
+ rrddim_set_by_pointer(st_mem_writeback, rd_nfs_writeback, NFS_Unstable);
+ rrddim_set_by_pointer(st_mem_writeback, rd_bounce, Bounce);
+
+ rrdset_done(st_mem_writeback);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_kernel) {
+ static RRDSET *st_mem_kernel = NULL;
+ static RRDDIM *rd_slab = NULL, *rd_kernelstack = NULL, *rd_pagetables = NULL, *rd_vmallocused = NULL;
+
+ if(unlikely(!st_mem_kernel)) {
+ st_mem_kernel = rrdset_create_localhost(
+ "mem"
+ , "kernel"
+ , NULL
+ , "kernel"
+ , NULL
+ , "Memory Used by Kernel"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_KERNEL + 1
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_flag_set(st_mem_kernel, RRDSET_FLAG_DETAIL);
+
+ rd_slab = rrddim_add(st_mem_kernel, "Slab", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_kernelstack = rrddim_add(st_mem_kernel, "KernelStack", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_pagetables = rrddim_add(st_mem_kernel, "PageTables", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_vmallocused = rrddim_add(st_mem_kernel, "VmallocUsed", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_kernel);
+
+ rrddim_set_by_pointer(st_mem_kernel, rd_slab, Slab);
+ rrddim_set_by_pointer(st_mem_kernel, rd_kernelstack, KernelStack);
+ rrddim_set_by_pointer(st_mem_kernel, rd_pagetables, PageTables);
+ rrddim_set_by_pointer(st_mem_kernel, rd_vmallocused, VmallocUsed);
+
+ rrdset_done(st_mem_kernel);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_slab) {
+ static RRDSET *st_mem_slab = NULL;
+ static RRDDIM *rd_reclaimable = NULL, *rd_unreclaimable = NULL;
+
+ if(unlikely(!st_mem_slab)) {
+ st_mem_slab = rrdset_create_localhost(
+ "mem"
+ , "slab"
+ , NULL
+ , "slab"
+ , NULL
+ , "Reclaimable Kernel Memory"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_SLAB
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_flag_set(st_mem_slab, RRDSET_FLAG_DETAIL);
+
+ rd_reclaimable = rrddim_add(st_mem_slab, "reclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_unreclaimable = rrddim_add(st_mem_slab, "unreclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_slab);
+
+ rrddim_set_by_pointer(st_mem_slab, rd_reclaimable, SReclaimable);
+ rrddim_set_by_pointer(st_mem_slab, rd_unreclaimable, SUnreclaim);
+
+ rrdset_done(st_mem_slab);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_hugepages == CONFIG_BOOLEAN_YES || (do_hugepages == CONFIG_BOOLEAN_AUTO && Hugepagesize != 0 && HugePages_Total != 0)) {
+ do_hugepages = CONFIG_BOOLEAN_YES;
+
+ static RRDSET *st_mem_hugepages = NULL;
+ static RRDDIM *rd_used = NULL, *rd_free = NULL, *rd_rsvd = NULL, *rd_surp = NULL;
+
+ if(unlikely(!st_mem_hugepages)) {
+ st_mem_hugepages = rrdset_create_localhost(
+ "mem"
+ , "hugepages"
+ , NULL
+ , "hugepages"
+ , NULL
+ , "Dedicated HugePages Memory"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_HUGEPAGES + 1
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_flag_set(st_mem_hugepages, RRDSET_FLAG_DETAIL);
+
+ rd_free = rrddim_add(st_mem_hugepages, "free", NULL, Hugepagesize, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_used = rrddim_add(st_mem_hugepages, "used", NULL, Hugepagesize, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_surp = rrddim_add(st_mem_hugepages, "surplus", NULL, Hugepagesize, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_rsvd = rrddim_add(st_mem_hugepages, "reserved", NULL, Hugepagesize, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_hugepages);
+
+ rrddim_set_by_pointer(st_mem_hugepages, rd_used, HugePages_Total - HugePages_Free - HugePages_Rsvd);
+ rrddim_set_by_pointer(st_mem_hugepages, rd_free, HugePages_Free);
+ rrddim_set_by_pointer(st_mem_hugepages, rd_rsvd, HugePages_Rsvd);
+ rrddim_set_by_pointer(st_mem_hugepages, rd_surp, HugePages_Surp);
+
+ rrdset_done(st_mem_hugepages);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(do_transparent_hugepages == CONFIG_BOOLEAN_YES || (do_transparent_hugepages == CONFIG_BOOLEAN_AUTO && (AnonHugePages != 0 || ShmemHugePages != 0))) {
+ do_transparent_hugepages = CONFIG_BOOLEAN_YES;
+
+ static RRDSET *st_mem_transparent_hugepages = NULL;
+ static RRDDIM *rd_anonymous = NULL, *rd_shared = NULL;
+
+ if(unlikely(!st_mem_transparent_hugepages)) {
+ st_mem_transparent_hugepages = rrdset_create_localhost(
+ "mem"
+ , "transparent_hugepages"
+ , NULL
+ , "hugepages"
+ , NULL
+ , "Transparent HugePages Memory"
+ , "MiB"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MEMINFO_NAME
+ , NETDATA_CHART_PRIO_MEM_HUGEPAGES
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_flag_set(st_mem_transparent_hugepages, RRDSET_FLAG_DETAIL);
+
+ rd_anonymous = rrddim_add(st_mem_transparent_hugepages, "anonymous", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ rd_shared = rrddim_add(st_mem_transparent_hugepages, "shmem", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
+ }
+ else rrdset_next(st_mem_transparent_hugepages);
+
+ rrddim_set_by_pointer(st_mem_transparent_hugepages, rd_anonymous, AnonHugePages);
+ rrddim_set_by_pointer(st_mem_transparent_hugepages, rd_shared, ShmemHugePages);
+
+ rrdset_done(st_mem_transparent_hugepages);
+ }
+
+ return 0;
+}
+