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_BOOLEAN_AUTO);
59 do_hwcorrupt = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "hardware corrupted ECC", CONFIG_BOOLEAN_AUTO);
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_localhost("system.ram");
145 st = rrdset_create_localhost("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every
146 , RRDSET_TYPE_STACKED);
148 rrddim_add(st, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
149 rrddim_add(st, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
150 rrddim_add(st, "cached", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
151 rrddim_add(st, "buffers", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
153 else rrdset_next(st);
155 rrddim_set(st, "free", MemFree);
156 rrddim_set(st, "used", MemUsed);
157 rrddim_set(st, "cached", Cached);
158 rrddim_set(st, "buffers", Buffers);
162 // --------------------------------------------------------------------
164 unsigned long long SwapUsed = SwapTotal - SwapFree;
166 if(SwapTotal || SwapUsed || SwapFree || do_swap == CONFIG_BOOLEAN_YES) {
167 do_swap = CONFIG_BOOLEAN_YES;
169 st = rrdset_find_localhost("system.swap");
171 st = rrdset_create_localhost("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every
172 , RRDSET_TYPE_STACKED);
173 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
175 rrddim_add(st, "free", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
176 rrddim_add(st, "used", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
178 else rrdset_next(st);
180 rrddim_set(st, "used", SwapUsed);
181 rrddim_set(st, "free", SwapFree);
185 // --------------------------------------------------------------------
187 if(arl_hwcorrupted->flags & ARL_ENTRY_FLAG_FOUND && (do_hwcorrupt == CONFIG_BOOLEAN_YES || (do_hwcorrupt == CONFIG_BOOLEAN_AUTO && HardwareCorrupted > 0))) {
188 do_hwcorrupt = CONFIG_BOOLEAN_YES;
190 st = rrdset_find_localhost("mem.hwcorrupt");
192 st = rrdset_create_localhost("mem", "hwcorrupt", NULL, "ecc", NULL, "Hardware Corrupted ECC", "MB", 9000
193 , update_every, RRDSET_TYPE_LINE);
194 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
196 rrddim_add(st, "HardwareCorrupted", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
198 else rrdset_next(st);
200 rrddim_set(st, "HardwareCorrupted", HardwareCorrupted);
204 // --------------------------------------------------------------------
207 st = rrdset_find_localhost("mem.committed");
209 st = rrdset_create_localhost("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB"
210 , 5000, update_every, RRDSET_TYPE_AREA);
211 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
213 rrddim_add(st, "Committed_AS", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
215 else rrdset_next(st);
217 rrddim_set(st, "Committed_AS", Committed_AS);
221 // --------------------------------------------------------------------
224 st = rrdset_find_localhost("mem.writeback");
226 st = rrdset_create_localhost("mem", "writeback", NULL, "kernel", NULL, "Writeback Memory", "MB", 4000
227 , update_every, RRDSET_TYPE_LINE);
228 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
230 rrddim_add(st, "Dirty", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
231 rrddim_add(st, "Writeback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
232 rrddim_add(st, "FuseWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
233 rrddim_add(st, "NfsWriteback", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
234 rrddim_add(st, "Bounce", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
236 else rrdset_next(st);
238 rrddim_set(st, "Dirty", Dirty);
239 rrddim_set(st, "Writeback", Writeback);
240 rrddim_set(st, "FuseWriteback", WritebackTmp);
241 rrddim_set(st, "NfsWriteback", NFS_Unstable);
242 rrddim_set(st, "Bounce", Bounce);
246 // --------------------------------------------------------------------
249 st = rrdset_find_localhost("mem.kernel");
251 st = rrdset_create_localhost("mem", "kernel", NULL, "kernel", NULL, "Memory Used by Kernel", "MB", 6000
252 , update_every, RRDSET_TYPE_STACKED);
253 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
255 rrddim_add(st, "Slab", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
256 rrddim_add(st, "KernelStack", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
257 rrddim_add(st, "PageTables", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
258 rrddim_add(st, "VmallocUsed", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
260 else rrdset_next(st);
262 rrddim_set(st, "KernelStack", KernelStack);
263 rrddim_set(st, "Slab", Slab);
264 rrddim_set(st, "PageTables", PageTables);
265 rrddim_set(st, "VmallocUsed", VmallocUsed);
269 // --------------------------------------------------------------------
272 st = rrdset_find_localhost("mem.slab");
274 st = rrdset_create_localhost("mem", "slab", NULL, "slab", NULL, "Reclaimable Kernel Memory", "MB", 6500
275 , update_every, RRDSET_TYPE_STACKED);
276 rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
278 rrddim_add(st, "reclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
279 rrddim_add(st, "unreclaimable", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE);
281 else rrdset_next(st);
283 rrddim_set(st, "reclaimable", SReclaimable);
284 rrddim_set(st, "unreclaimable", SUnreclaim);