3 int do_proc_meminfo(int update_every, usec_t dt) {
6 static procfile *ff = NULL;
7 static int do_ram = -1, do_swap = -1, do_hwcorrupt = -1, do_committed = -1, do_writeback = -1, do_kernel = -1, do_slab = -1;
9 static ARL_BASE *arl_base = NULL;
10 static ARL_ENTRY *arl_hwcorrupted = NULL;
12 static unsigned long long
47 //HugePages_Total = 0,
54 HardwareCorrupted = 0;
56 if(unlikely(!arl_base)) {
57 do_ram = config_get_boolean("plugin:proc:/proc/meminfo", "system ram", 1);
58 do_swap = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "system swap", CONFIG_ONDEMAND_ONDEMAND);
59 do_hwcorrupt = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "hardware corrupted ECC", CONFIG_ONDEMAND_ONDEMAND);
60 do_committed = config_get_boolean("plugin:proc:/proc/meminfo", "committed memory", 1);
61 do_writeback = config_get_boolean("plugin:proc:/proc/meminfo", "writeback memory", 1);
62 do_kernel = config_get_boolean("plugin:proc:/proc/meminfo", "kernel memory", 1);
63 do_slab = config_get_boolean("plugin:proc:/proc/meminfo", "slab memory", 1);
65 arl_base = arl_create("meminfo", NULL, 60);
66 arl_expect(arl_base, "MemTotal", &MemTotal);
67 arl_expect(arl_base, "MemFree", &MemFree);
68 arl_expect(arl_base, "Buffers", &Buffers);
69 arl_expect(arl_base, "Cached", &Cached);
70 //arl_expect(arl_base, "SwapCached", &SwapCached);
71 //arl_expect(arl_base, "Active", &Active);
72 //arl_expect(arl_base, "Inactive", &Inactive);
73 //arl_expect(arl_base, "ActiveAnon", &ActiveAnon);
74 //arl_expect(arl_base, "InactiveAnon", &InactiveAnon);
75 //arl_expect(arl_base, "ActiveFile", &ActiveFile);
76 //arl_expect(arl_base, "InactiveFile", &InactiveFile);
77 //arl_expect(arl_base, "Unevictable", &Unevictable);
78 //arl_expect(arl_base, "Mlocked", &Mlocked);
79 arl_expect(arl_base, "SwapTotal", &SwapTotal);
80 arl_expect(arl_base, "SwapFree", &SwapFree);
81 arl_expect(arl_base, "Dirty", &Dirty);
82 arl_expect(arl_base, "Writeback", &Writeback);
83 //arl_expect(arl_base, "AnonPages", &AnonPages);
84 //arl_expect(arl_base, "Mapped", &Mapped);
85 //arl_expect(arl_base, "Shmem", &Shmem);
86 arl_expect(arl_base, "Slab", &Slab);
87 arl_expect(arl_base, "SReclaimable", &SReclaimable);
88 arl_expect(arl_base, "SUnreclaim", &SUnreclaim);
89 arl_expect(arl_base, "KernelStack", &KernelStack);
90 arl_expect(arl_base, "PageTables", &PageTables);
91 arl_expect(arl_base, "NFS_Unstable", &NFS_Unstable);
92 arl_expect(arl_base, "Bounce", &Bounce);
93 arl_expect(arl_base, "WritebackTmp", &WritebackTmp);
94 //arl_expect(arl_base, "CommitLimit", &CommitLimit);
95 arl_expect(arl_base, "Committed_AS", &Committed_AS);
96 //arl_expect(arl_base, "VmallocTotal", &VmallocTotal);
97 arl_expect(arl_base, "VmallocUsed", &VmallocUsed);
98 //arl_expect(arl_base, "VmallocChunk", &VmallocChunk);
99 arl_hwcorrupted = arl_expect(arl_base, "HardwareCorrupted", &HardwareCorrupted);
100 //arl_expect(arl_base, "AnonHugePages", &AnonHugePages);
101 //arl_expect(arl_base, "HugePages_Total", &HugePages_Total);
102 //arl_expect(arl_base, "HugePages_Free", &HugePages_Free);
103 //arl_expect(arl_base, "HugePages_Rsvd", &HugePages_Rsvd);
104 //arl_expect(arl_base, "HugePages_Surp", &HugePages_Surp);
105 //arl_expect(arl_base, "Hugepagesize", &Hugepagesize);
106 //arl_expect(arl_base, "DirectMap4k", &DirectMap4k);
107 //arl_expect(arl_base, "DirectMap2M", &DirectMap2M);
111 char filename[FILENAME_MAX + 1];
112 snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/meminfo");
113 ff = procfile_open(config_get("plugin:proc:/proc/meminfo", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
118 ff = procfile_readall(ff);
120 return 0; // we return 0, so that we will retry to open it next time
122 size_t lines = procfile_lines(ff), l;
126 for(l = 0; l < lines ;l++) {
127 size_t words = procfile_linewords(ff, l);
128 if(unlikely(words < 2)) continue;
130 if(unlikely(arl_check(arl_base,
131 procfile_lineword(ff, l, 0),
132 procfile_lineword(ff, l, 1)))) break;
137 // --------------------------------------------------------------------
139 // http://stackoverflow.com/questions/3019748/how-to-reliably-measure-available-memory-in-linux
140 unsigned long long MemUsed = MemTotal - MemFree - Cached - Buffers;
143 st = rrdset_find("system.ram");
145 st = rrdset_create("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every, RRDSET_TYPE_STACKED);
147 rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE);
148 rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE);
149 rrddim_add(st, "cached", NULL, 1, 1024, RRDDIM_ABSOLUTE);
150 rrddim_add(st, "buffers", NULL, 1, 1024, RRDDIM_ABSOLUTE);
152 else rrdset_next(st);
154 rrddim_set(st, "free", MemFree);
155 rrddim_set(st, "used", MemUsed);
156 rrddim_set(st, "cached", Cached);
157 rrddim_set(st, "buffers", Buffers);
161 // --------------------------------------------------------------------
163 unsigned long long SwapUsed = SwapTotal - SwapFree;
165 if(SwapTotal || SwapUsed || SwapFree || do_swap == CONFIG_ONDEMAND_YES) {
166 do_swap = CONFIG_ONDEMAND_YES;
168 st = rrdset_find("system.swap");
170 st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED);
173 rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE);
174 rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE);
176 else rrdset_next(st);
178 rrddim_set(st, "used", SwapUsed);
179 rrddim_set(st, "free", SwapFree);
183 // --------------------------------------------------------------------
185 if(arl_hwcorrupted->flags & ARL_ENTRY_FLAG_FOUND && (do_hwcorrupt == CONFIG_ONDEMAND_YES || (do_hwcorrupt == CONFIG_ONDEMAND_ONDEMAND && HardwareCorrupted > 0))) {
186 do_hwcorrupt = CONFIG_ONDEMAND_YES;
188 st = rrdset_find("mem.hwcorrupt");
190 st = rrdset_create("mem", "hwcorrupt", NULL, "ecc", NULL, "Hardware Corrupted ECC", "MB", 9000, update_every, RRDSET_TYPE_LINE);
193 rrddim_add(st, "HardwareCorrupted", NULL, 1, 1024, RRDDIM_ABSOLUTE);
195 else rrdset_next(st);
197 rrddim_set(st, "HardwareCorrupted", HardwareCorrupted);
201 // --------------------------------------------------------------------
204 st = rrdset_find("mem.committed");
206 st = rrdset_create("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB", 5000, update_every, RRDSET_TYPE_AREA);
209 rrddim_add(st, "Committed_AS", NULL, 1, 1024, RRDDIM_ABSOLUTE);
211 else rrdset_next(st);
213 rrddim_set(st, "Committed_AS", Committed_AS);
217 // --------------------------------------------------------------------
220 st = rrdset_find("mem.writeback");
222 st = rrdset_create("mem", "writeback", NULL, "kernel", NULL, "Writeback Memory", "MB", 4000, update_every, RRDSET_TYPE_LINE);
225 rrddim_add(st, "Dirty", NULL, 1, 1024, RRDDIM_ABSOLUTE);
226 rrddim_add(st, "Writeback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
227 rrddim_add(st, "FuseWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
228 rrddim_add(st, "NfsWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
229 rrddim_add(st, "Bounce", NULL, 1, 1024, RRDDIM_ABSOLUTE);
231 else rrdset_next(st);
233 rrddim_set(st, "Dirty", Dirty);
234 rrddim_set(st, "Writeback", Writeback);
235 rrddim_set(st, "FuseWriteback", WritebackTmp);
236 rrddim_set(st, "NfsWriteback", NFS_Unstable);
237 rrddim_set(st, "Bounce", Bounce);
241 // --------------------------------------------------------------------
244 st = rrdset_find("mem.kernel");
246 st = rrdset_create("mem", "kernel", NULL, "kernel", NULL, "Memory Used by Kernel", "MB", 6000, update_every, RRDSET_TYPE_STACKED);
249 rrddim_add(st, "Slab", NULL, 1, 1024, RRDDIM_ABSOLUTE);
250 rrddim_add(st, "KernelStack", NULL, 1, 1024, RRDDIM_ABSOLUTE);
251 rrddim_add(st, "PageTables", NULL, 1, 1024, RRDDIM_ABSOLUTE);
252 rrddim_add(st, "VmallocUsed", NULL, 1, 1024, RRDDIM_ABSOLUTE);
254 else rrdset_next(st);
256 rrddim_set(st, "KernelStack", KernelStack);
257 rrddim_set(st, "Slab", Slab);
258 rrddim_set(st, "PageTables", PageTables);
259 rrddim_set(st, "VmallocUsed", VmallocUsed);
263 // --------------------------------------------------------------------
266 st = rrdset_find("mem.slab");
268 st = rrdset_create("mem", "slab", NULL, "slab", NULL, "Reclaimable Kernel Memory", "MB", 6500, update_every, RRDSET_TYPE_STACKED);
271 rrddim_add(st, "reclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE);
272 rrddim_add(st, "unreclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE);
274 else rrdset_next(st);
276 rrddim_set(st, "reclaimable", SReclaimable);
277 rrddim_set(st, "unreclaimable", SUnreclaim);