diff options
Diffstat (limited to 'collectors/proc.plugin/proc_meminfo.c')
| -rw-r--r-- | collectors/proc.plugin/proc_meminfo.c | 519 |
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; +} + |