#include "common.h" 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; static ARL_BASE *arl_base = NULL; static ARL_ENTRY *arl_hwcorrupted = NULL; static unsigned long long MemTotal = 0, MemFree = 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, //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("plugin:proc:/proc/meminfo", "system ram", 1); do_swap = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "system swap", CONFIG_BOOLEAN_AUTO); do_hwcorrupt = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "hardware corrupted ECC", CONFIG_BOOLEAN_AUTO); do_committed = config_get_boolean("plugin:proc:/proc/meminfo", "committed memory", 1); do_writeback = config_get_boolean("plugin:proc:/proc/meminfo", "writeback memory", 1); do_kernel = config_get_boolean("plugin:proc:/proc/meminfo", "kernel memory", 1); do_slab = config_get_boolean("plugin:proc:/proc/meminfo", "slab memory", 1); arl_base = arl_create("meminfo", NULL, 60); arl_expect(arl_base, "MemTotal", &MemTotal); arl_expect(arl_base, "MemFree", &MemFree); 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, "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("plugin:proc:/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; } RRDSET *st; // -------------------------------------------------------------------- // http://stackoverflow.com/questions/3019748/how-to-reliably-measure-available-memory-in-linux unsigned long long MemUsed = MemTotal - MemFree - Cached - Buffers; if(do_ram) { st = rrdset_find_localhost("system.ram"); if(!st) { st = rrdset_create_localhost("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every , RRDSET_TYPE_STACKED); rrddim_add(st, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "cached", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "buffers", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "free", MemFree); rrddim_set(st, "used", MemUsed); rrddim_set(st, "cached", Cached); rrddim_set(st, "buffers", Buffers); rrdset_done(st); } // -------------------------------------------------------------------- unsigned long long SwapUsed = SwapTotal - SwapFree; if(SwapTotal || SwapUsed || SwapFree || do_swap == CONFIG_BOOLEAN_YES) { do_swap = CONFIG_BOOLEAN_YES; st = rrdset_find_localhost("system.swap"); if(!st) { st = rrdset_create_localhost("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every , RRDSET_TYPE_STACKED); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "used", SwapUsed); rrddim_set(st, "free", SwapFree); rrdset_done(st); } // -------------------------------------------------------------------- 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; st = rrdset_find_localhost("mem.hwcorrupt"); if(!st) { st = rrdset_create_localhost("mem", "hwcorrupt", NULL, "ecc", NULL, "Hardware Corrupted ECC", "MB", 9000 , update_every, RRDSET_TYPE_LINE); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "HardwareCorrupted", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "HardwareCorrupted", HardwareCorrupted); rrdset_done(st); } // -------------------------------------------------------------------- if(do_committed) { st = rrdset_find_localhost("mem.committed"); if(!st) { st = rrdset_create_localhost("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB" , 5000, update_every, RRDSET_TYPE_AREA); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "Committed_AS", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "Committed_AS", Committed_AS); rrdset_done(st); } // -------------------------------------------------------------------- if(do_writeback) { st = rrdset_find_localhost("mem.writeback"); if(!st) { st = rrdset_create_localhost("mem", "writeback", NULL, "kernel", NULL, "Writeback Memory", "MB", 4000 , update_every, RRDSET_TYPE_LINE); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "Dirty", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "Writeback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "FuseWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "NfsWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "Bounce", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "Dirty", Dirty); rrddim_set(st, "Writeback", Writeback); rrddim_set(st, "FuseWriteback", WritebackTmp); rrddim_set(st, "NfsWriteback", NFS_Unstable); rrddim_set(st, "Bounce", Bounce); rrdset_done(st); } // -------------------------------------------------------------------- if(do_kernel) { st = rrdset_find_localhost("mem.kernel"); if(!st) { st = rrdset_create_localhost("mem", "kernel", NULL, "kernel", NULL, "Memory Used by Kernel", "MB", 6000 , update_every, RRDSET_TYPE_STACKED); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "Slab", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "KernelStack", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "PageTables", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "VmallocUsed", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "KernelStack", KernelStack); rrddim_set(st, "Slab", Slab); rrddim_set(st, "PageTables", PageTables); rrddim_set(st, "VmallocUsed", VmallocUsed); rrdset_done(st); } // -------------------------------------------------------------------- if(do_slab) { st = rrdset_find_localhost("mem.slab"); if(!st) { st = rrdset_create_localhost("mem", "slab", NULL, "slab", NULL, "Reclaimable Kernel Memory", "MB", 6500 , update_every, RRDSET_TYPE_STACKED); rrdset_flag_set(st, RRDSET_FLAG_DETAIL); rrddim_add(st, "reclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(st, "unreclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "reclaimable", SReclaimable); rrddim_set(st, "unreclaimable", SUnreclaim); rrdset_done(st); } return 0; }