#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 uint32_t MemTotal_hash = 0, MemFree_hash = 0, Buffers_hash = 0, Cached_hash = 0, //SwapCached_hash = 0, //Active_hash = 0, //Inactive_hash = 0, //ActiveAnon_hash = 0, //InactiveAnon_hash = 0, //ActiveFile_hash = 0, //InactiveFile_hash = 0, //Unevictable_hash = 0, //Mlocked_hash = 0, SwapTotal_hash = 0, SwapFree_hash = 0, Dirty_hash = 0, Writeback_hash = 0, //AnonPages_hash = 0, //Mapped_hash = 0, //Shmem_hash = 0, Slab_hash = 0, SReclaimable_hash = 0, SUnreclaim_hash = 0, KernelStack_hash = 0, PageTables_hash = 0, NFS_Unstable_hash = 0, Bounce_hash = 0, WritebackTmp_hash = 0, //CommitLimit_hash = 0, Committed_AS_hash = 0, //VmallocTotal_hash = 0, VmallocUsed_hash = 0, //VmallocChunk_hash = 0, //AnonHugePages_hash = 0, //HugePages_Total_hash = 0, //HugePages_Free_hash = 0, //HugePages_Rsvd_hash = 0, //HugePages_Surp_hash = 0, //Hugepagesize_hash = 0, //DirectMap4k_hash = 0, //DirectMap2M_hash = 0, HardwareCorrupted_hash = 0; if(unlikely(do_ram == -1)) { 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_ONDEMAND_ONDEMAND); do_hwcorrupt = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "hardware corrupted ECC", CONFIG_ONDEMAND_ONDEMAND); 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); MemTotal_hash = simple_hash("MemTotal"); MemFree_hash = simple_hash("MemFree"); Buffers_hash = simple_hash("Buffers"); Cached_hash = simple_hash("Cached"); //SwapCached_hash = simple_hash("SwapCached"); //Active_hash = simple_hash("Active"); //Inactive_hash = simple_hash("Inactive"); //ActiveAnon_hash = simple_hash("ActiveAnon"); //InactiveAnon_hash = simple_hash("InactiveAnon"); //ActiveFile_hash = simple_hash("ActiveFile"); //InactiveFile_hash = simple_hash("InactiveFile"); //Unevictable_hash = simple_hash("Unevictable"); //Mlocked_hash = simple_hash("Mlocked"); SwapTotal_hash = simple_hash("SwapTotal"); SwapFree_hash = simple_hash("SwapFree"); Dirty_hash = simple_hash("Dirty"); Writeback_hash = simple_hash("Writeback"); //AnonPages_hash = simple_hash("AnonPages"); //Mapped_hash = simple_hash("Mapped"); //Shmem_hash = simple_hash("Shmem"); Slab_hash = simple_hash("Slab"); SReclaimable_hash = simple_hash("SReclaimable"); SUnreclaim_hash = simple_hash("SUnreclaim"); KernelStack_hash = simple_hash("KernelStack"); PageTables_hash = simple_hash("PageTables"); NFS_Unstable_hash = simple_hash("NFS_Unstable"); Bounce_hash = simple_hash("Bounce"); WritebackTmp_hash = simple_hash("WritebackTmp"); //CommitLimit_hash = simple_hash("CommitLimit"); Committed_AS_hash = simple_hash("Committed_AS"); //VmallocTotal_hash = simple_hash("VmallocTotal"); VmallocUsed_hash = simple_hash("VmallocUsed"); //VmallocChunk_hash = simple_hash("VmallocChunk"); HardwareCorrupted_hash = simple_hash("HardwareCorrupted"); //AnonHugePages_hash = simple_hash("AnonHugePages"); //HugePages_Total_hash = simple_hash("HugePages_Total"); //HugePages_Free_hash = simple_hash("HugePages_Free"); //HugePages_Rsvd_hash = simple_hash("HugePages_Rsvd"); //HugePages_Surp_hash = simple_hash("HugePages_Surp"); //Hugepagesize_hash = simple_hash("Hugepagesize"); //DirectMap4k_hash = simple_hash("DirectMap4k"); //DirectMap2M_hash = simple_hash("DirectMap2M"); } if(unlikely(!ff)) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", global_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 uint32_t lines = procfile_lines(ff), l; int hwcorrupted = 0; 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; for(l = 0; l < lines ;l++) { uint32_t words = procfile_linewords(ff, l); if(unlikely(words < 2)) continue; char *name = procfile_lineword(ff, l, 0); uint32_t hash = simple_hash(name); unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10); if(hash == MemTotal_hash && strcmp(name, "MemTotal") == 0) MemTotal = value; else if(hash == MemFree_hash && strcmp(name, "MemFree") == 0) MemFree = value; else if(hash == Buffers_hash && strcmp(name, "Buffers") == 0) Buffers = value; else if(hash == Cached_hash && strcmp(name, "Cached") == 0) Cached = value; //else if(hash == SwapCached_hash && strcmp(name, "SwapCached") == 0) SwapCached = value; //else if(hash == Active_hash && strcmp(name, "Active") == 0) Active = value; //else if(hash == Inactive_hash && strcmp(name, "Inactive") == 0) Inactive = value; //else if(hash == ActiveAnon_hash && strcmp(name, "ActiveAnon") == 0) ActiveAnon = value; //else if(hash == InactiveAnon_hash && strcmp(name, "InactiveAnon") == 0) InactiveAnon = value; //else if(hash == ActiveFile_hash && strcmp(name, "ActiveFile") == 0) ActiveFile = value; //else if(hash == InactiveFile_hash && strcmp(name, "InactiveFile") == 0) InactiveFile = value; //else if(hash == Unevictable_hash && strcmp(name, "Unevictable") == 0) Unevictable = value; //else if(hash == Mlocked_hash && strcmp(name, "Mlocked") == 0) Mlocked = value; else if(hash == SwapTotal_hash && strcmp(name, "SwapTotal") == 0) SwapTotal = value; else if(hash == SwapFree_hash && strcmp(name, "SwapFree") == 0) SwapFree = value; else if(hash == Dirty_hash && strcmp(name, "Dirty") == 0) Dirty = value; else if(hash == Writeback_hash && strcmp(name, "Writeback") == 0) Writeback = value; //else if(hash == AnonPages_hash && strcmp(name, "AnonPages") == 0) AnonPages = value; //else if(hash == Mapped_hash && strcmp(name, "Mapped") == 0) Mapped = value; //else if(hash == Shmem_hash && strcmp(name, "Shmem") == 0) Shmem = value; else if(hash == Slab_hash && strcmp(name, "Slab") == 0) Slab = value; else if(hash == SReclaimable_hash && strcmp(name, "SReclaimable") == 0) SReclaimable = value; else if(hash == SUnreclaim_hash && strcmp(name, "SUnreclaim") == 0) SUnreclaim = value; else if(hash == KernelStack_hash && strcmp(name, "KernelStack") == 0) KernelStack = value; else if(hash == PageTables_hash && strcmp(name, "PageTables") == 0) PageTables = value; else if(hash == NFS_Unstable_hash && strcmp(name, "NFS_Unstable") == 0) NFS_Unstable = value; else if(hash == Bounce_hash && strcmp(name, "Bounce") == 0) Bounce = value; else if(hash == WritebackTmp_hash && strcmp(name, "WritebackTmp") == 0) WritebackTmp = value; //else if(hash == CommitLimit_hash && strcmp(name, "CommitLimit") == 0) CommitLimit = value; else if(hash == Committed_AS_hash && strcmp(name, "Committed_AS") == 0) Committed_AS = value; //else if(hash == VmallocTotal_hash && strcmp(name, "VmallocTotal") == 0) VmallocTotal = value; else if(hash == VmallocUsed_hash && strcmp(name, "VmallocUsed") == 0) VmallocUsed = value; //else if(hash == VmallocChunk_hash && strcmp(name, "VmallocChunk") == 0) VmallocChunk = value; else if(hash == HardwareCorrupted_hash && strcmp(name, "HardwareCorrupted") == 0) { HardwareCorrupted = value; hwcorrupted = 1; } //else if(hash == AnonHugePages_hash && strcmp(name, "AnonHugePages") == 0) AnonHugePages = value; //else if(hash == HugePages_Total_hash && strcmp(name, "HugePages_Total") == 0) HugePages_Total = value; //else if(hash == HugePages_Free_hash && strcmp(name, "HugePages_Free") == 0) HugePages_Free = value; //else if(hash == HugePages_Rsvd_hash && strcmp(name, "HugePages_Rsvd") == 0) HugePages_Rsvd = value; //else if(hash == HugePages_Surp_hash && strcmp(name, "HugePages_Surp") == 0) HugePages_Surp = value; //else if(hash == Hugepagesize_hash && strcmp(name, "Hugepagesize") == 0) Hugepagesize = value; //else if(hash == DirectMap4k_hash && strcmp(name, "DirectMap4k") == 0) DirectMap4k = value; //else if(hash == DirectMap2M_hash && strcmp(name, "DirectMap2M") == 0) DirectMap2M = value; } 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("system.ram"); if(!st) { st = rrdset_create("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every, RRDSET_TYPE_STACKED); rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "cached", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "buffers", NULL, 1, 1024, RRDDIM_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_ONDEMAND_YES) { do_swap = CONFIG_ONDEMAND_YES; st = rrdset_find("system.swap"); if(!st) { st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED); st->isdetail = 1; rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "used", SwapUsed); rrddim_set(st, "free", SwapFree); rrdset_done(st); } // -------------------------------------------------------------------- if(hwcorrupted && do_hwcorrupt && HardwareCorrupted > 0) { do_hwcorrupt = CONFIG_ONDEMAND_YES; st = rrdset_find("mem.hwcorrupt"); if(!st) { st = rrdset_create("mem", "hwcorrupt", NULL, "errors", NULL, "Hardware Corrupted ECC", "MB", 9000, update_every, RRDSET_TYPE_LINE); st->isdetail = 1; rrddim_add(st, "HardwareCorrupted", NULL, 1, 1024, RRDDIM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "HardwareCorrupted", HardwareCorrupted); rrdset_done(st); } // -------------------------------------------------------------------- if(do_committed) { st = rrdset_find("mem.committed"); if(!st) { st = rrdset_create("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB", 5000, update_every, RRDSET_TYPE_AREA); st->isdetail = 1; rrddim_add(st, "Committed_AS", NULL, 1, 1024, RRDDIM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "Committed_AS", Committed_AS); rrdset_done(st); } // -------------------------------------------------------------------- if(do_writeback) { st = rrdset_find("mem.writeback"); if(!st) { st = rrdset_create("mem", "writeback", NULL, "kernel", NULL, "Writeback Memory", "MB", 4000, update_every, RRDSET_TYPE_LINE); st->isdetail = 1; rrddim_add(st, "Dirty", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "Writeback", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "FuseWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "NfsWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "Bounce", NULL, 1, 1024, RRDDIM_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("mem.kernel"); if(!st) { st = rrdset_create("mem", "kernel", NULL, "kernel", NULL, "Memory Used by Kernel", "MB", 6000, update_every, RRDSET_TYPE_STACKED); st->isdetail = 1; rrddim_add(st, "Slab", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "KernelStack", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "PageTables", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "VmallocUsed", NULL, 1, 1024, RRDDIM_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("mem.slab"); if(!st) { st = rrdset_create("mem", "slab", NULL, "slab", NULL, "Reclaimable Kernel Memory", "MB", 6500, update_every, RRDSET_TYPE_STACKED); st->isdetail = 1; rrddim_add(st, "reclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE); rrddim_add(st, "unreclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE); } else rrdset_next(st); rrddim_set(st, "reclaimable", SReclaimable); rrddim_set(st, "unreclaimable", SUnreclaim); rrdset_done(st); } return 0; }