3 int do_proc_meminfo(int update_every, unsigned long long 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;
8 static uint32_t MemTotal_hash = 0,
12 //SwapCached_hash = 0,
15 //ActiveAnon_hash = 0,
16 //InactiveAnon_hash = 0,
17 //ActiveFile_hash = 0,
18 //InactiveFile_hash = 0,
19 //Unevictable_hash = 0,
29 SReclaimable_hash = 0,
33 NFS_Unstable_hash = 0,
35 WritebackTmp_hash = 0,
36 //CommitLimit_hash = 0,
37 Committed_AS_hash = 0,
38 //VmallocTotal_hash = 0,
40 //VmallocChunk_hash = 0,
41 //AnonHugePages_hash = 0,
42 //HugePages_Total_hash = 0,
43 //HugePages_Free_hash = 0,
44 //HugePages_Rsvd_hash = 0,
45 //HugePages_Surp_hash = 0,
46 //Hugepagesize_hash = 0,
47 //DirectMap4k_hash = 0,
48 //DirectMap2M_hash = 0,
49 HardwareCorrupted_hash = 0;
51 if(unlikely(do_ram == -1)) {
52 do_ram = config_get_boolean("plugin:proc:/proc/meminfo", "system ram", 1);
53 do_swap = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "system swap", CONFIG_ONDEMAND_ONDEMAND);
54 do_hwcorrupt = config_get_boolean_ondemand("plugin:proc:/proc/meminfo", "hardware corrupted ECC", CONFIG_ONDEMAND_ONDEMAND);
55 do_committed = config_get_boolean("plugin:proc:/proc/meminfo", "committed memory", 1);
56 do_writeback = config_get_boolean("plugin:proc:/proc/meminfo", "writeback memory", 1);
57 do_kernel = config_get_boolean("plugin:proc:/proc/meminfo", "kernel memory", 1);
58 do_slab = config_get_boolean("plugin:proc:/proc/meminfo", "slab memory", 1);
60 MemTotal_hash = simple_hash("MemTotal");
61 MemFree_hash = simple_hash("MemFree");
62 Buffers_hash = simple_hash("Buffers");
63 Cached_hash = simple_hash("Cached");
64 //SwapCached_hash = simple_hash("SwapCached");
65 //Active_hash = simple_hash("Active");
66 //Inactive_hash = simple_hash("Inactive");
67 //ActiveAnon_hash = simple_hash("ActiveAnon");
68 //InactiveAnon_hash = simple_hash("InactiveAnon");
69 //ActiveFile_hash = simple_hash("ActiveFile");
70 //InactiveFile_hash = simple_hash("InactiveFile");
71 //Unevictable_hash = simple_hash("Unevictable");
72 //Mlocked_hash = simple_hash("Mlocked");
73 SwapTotal_hash = simple_hash("SwapTotal");
74 SwapFree_hash = simple_hash("SwapFree");
75 Dirty_hash = simple_hash("Dirty");
76 Writeback_hash = simple_hash("Writeback");
77 //AnonPages_hash = simple_hash("AnonPages");
78 //Mapped_hash = simple_hash("Mapped");
79 //Shmem_hash = simple_hash("Shmem");
80 Slab_hash = simple_hash("Slab");
81 SReclaimable_hash = simple_hash("SReclaimable");
82 SUnreclaim_hash = simple_hash("SUnreclaim");
83 KernelStack_hash = simple_hash("KernelStack");
84 PageTables_hash = simple_hash("PageTables");
85 NFS_Unstable_hash = simple_hash("NFS_Unstable");
86 Bounce_hash = simple_hash("Bounce");
87 WritebackTmp_hash = simple_hash("WritebackTmp");
88 //CommitLimit_hash = simple_hash("CommitLimit");
89 Committed_AS_hash = simple_hash("Committed_AS");
90 //VmallocTotal_hash = simple_hash("VmallocTotal");
91 VmallocUsed_hash = simple_hash("VmallocUsed");
92 //VmallocChunk_hash = simple_hash("VmallocChunk");
93 HardwareCorrupted_hash = simple_hash("HardwareCorrupted");
94 //AnonHugePages_hash = simple_hash("AnonHugePages");
95 //HugePages_Total_hash = simple_hash("HugePages_Total");
96 //HugePages_Free_hash = simple_hash("HugePages_Free");
97 //HugePages_Rsvd_hash = simple_hash("HugePages_Rsvd");
98 //HugePages_Surp_hash = simple_hash("HugePages_Surp");
99 //Hugepagesize_hash = simple_hash("Hugepagesize");
100 //DirectMap4k_hash = simple_hash("DirectMap4k");
101 //DirectMap2M_hash = simple_hash("DirectMap2M");
105 char filename[FILENAME_MAX + 1];
106 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/meminfo");
107 ff = procfile_open(config_get("plugin:proc:/proc/meminfo", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
112 ff = procfile_readall(ff);
114 return 0; // we return 0, so that we will retry to open it next time
116 uint32_t lines = procfile_lines(ff), l;
120 unsigned long long MemTotal = 0,
154 //HugePages_Total = 0,
155 //HugePages_Free = 0,
156 //HugePages_Rsvd = 0,
157 //HugePages_Surp = 0,
161 HardwareCorrupted = 0;
163 for(l = 0; l < lines ;l++) {
164 uint32_t words = procfile_linewords(ff, l);
165 if(unlikely(words < 2)) continue;
167 char *name = procfile_lineword(ff, l, 0);
168 uint32_t hash = simple_hash(name);
169 unsigned long long value = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
171 if(hash == MemTotal_hash && strcmp(name, "MemTotal") == 0) MemTotal = value;
172 else if(hash == MemFree_hash && strcmp(name, "MemFree") == 0) MemFree = value;
173 else if(hash == Buffers_hash && strcmp(name, "Buffers") == 0) Buffers = value;
174 else if(hash == Cached_hash && strcmp(name, "Cached") == 0) Cached = value;
175 //else if(hash == SwapCached_hash && strcmp(name, "SwapCached") == 0) SwapCached = value;
176 //else if(hash == Active_hash && strcmp(name, "Active") == 0) Active = value;
177 //else if(hash == Inactive_hash && strcmp(name, "Inactive") == 0) Inactive = value;
178 //else if(hash == ActiveAnon_hash && strcmp(name, "ActiveAnon") == 0) ActiveAnon = value;
179 //else if(hash == InactiveAnon_hash && strcmp(name, "InactiveAnon") == 0) InactiveAnon = value;
180 //else if(hash == ActiveFile_hash && strcmp(name, "ActiveFile") == 0) ActiveFile = value;
181 //else if(hash == InactiveFile_hash && strcmp(name, "InactiveFile") == 0) InactiveFile = value;
182 //else if(hash == Unevictable_hash && strcmp(name, "Unevictable") == 0) Unevictable = value;
183 //else if(hash == Mlocked_hash && strcmp(name, "Mlocked") == 0) Mlocked = value;
184 else if(hash == SwapTotal_hash && strcmp(name, "SwapTotal") == 0) SwapTotal = value;
185 else if(hash == SwapFree_hash && strcmp(name, "SwapFree") == 0) SwapFree = value;
186 else if(hash == Dirty_hash && strcmp(name, "Dirty") == 0) Dirty = value;
187 else if(hash == Writeback_hash && strcmp(name, "Writeback") == 0) Writeback = value;
188 //else if(hash == AnonPages_hash && strcmp(name, "AnonPages") == 0) AnonPages = value;
189 //else if(hash == Mapped_hash && strcmp(name, "Mapped") == 0) Mapped = value;
190 //else if(hash == Shmem_hash && strcmp(name, "Shmem") == 0) Shmem = value;
191 else if(hash == Slab_hash && strcmp(name, "Slab") == 0) Slab = value;
192 else if(hash == SReclaimable_hash && strcmp(name, "SReclaimable") == 0) SReclaimable = value;
193 else if(hash == SUnreclaim_hash && strcmp(name, "SUnreclaim") == 0) SUnreclaim = value;
194 else if(hash == KernelStack_hash && strcmp(name, "KernelStack") == 0) KernelStack = value;
195 else if(hash == PageTables_hash && strcmp(name, "PageTables") == 0) PageTables = value;
196 else if(hash == NFS_Unstable_hash && strcmp(name, "NFS_Unstable") == 0) NFS_Unstable = value;
197 else if(hash == Bounce_hash && strcmp(name, "Bounce") == 0) Bounce = value;
198 else if(hash == WritebackTmp_hash && strcmp(name, "WritebackTmp") == 0) WritebackTmp = value;
199 //else if(hash == CommitLimit_hash && strcmp(name, "CommitLimit") == 0) CommitLimit = value;
200 else if(hash == Committed_AS_hash && strcmp(name, "Committed_AS") == 0) Committed_AS = value;
201 //else if(hash == VmallocTotal_hash && strcmp(name, "VmallocTotal") == 0) VmallocTotal = value;
202 else if(hash == VmallocUsed_hash && strcmp(name, "VmallocUsed") == 0) VmallocUsed = value;
203 //else if(hash == VmallocChunk_hash && strcmp(name, "VmallocChunk") == 0) VmallocChunk = value;
204 else if(hash == HardwareCorrupted_hash && strcmp(name, "HardwareCorrupted") == 0) { HardwareCorrupted = value; hwcorrupted = 1; }
205 //else if(hash == AnonHugePages_hash && strcmp(name, "AnonHugePages") == 0) AnonHugePages = value;
206 //else if(hash == HugePages_Total_hash && strcmp(name, "HugePages_Total") == 0) HugePages_Total = value;
207 //else if(hash == HugePages_Free_hash && strcmp(name, "HugePages_Free") == 0) HugePages_Free = value;
208 //else if(hash == HugePages_Rsvd_hash && strcmp(name, "HugePages_Rsvd") == 0) HugePages_Rsvd = value;
209 //else if(hash == HugePages_Surp_hash && strcmp(name, "HugePages_Surp") == 0) HugePages_Surp = value;
210 //else if(hash == Hugepagesize_hash && strcmp(name, "Hugepagesize") == 0) Hugepagesize = value;
211 //else if(hash == DirectMap4k_hash && strcmp(name, "DirectMap4k") == 0) DirectMap4k = value;
212 //else if(hash == DirectMap2M_hash && strcmp(name, "DirectMap2M") == 0) DirectMap2M = value;
217 // --------------------------------------------------------------------
219 // http://stackoverflow.com/questions/3019748/how-to-reliably-measure-available-memory-in-linux
220 unsigned long long MemUsed = MemTotal - MemFree - Cached - Buffers;
223 st = rrdset_find("system.ram");
225 st = rrdset_create("system", "ram", NULL, "ram", NULL, "System RAM", "MB", 200, update_every, RRDSET_TYPE_STACKED);
227 rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE);
228 rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE);
229 rrddim_add(st, "cached", NULL, 1, 1024, RRDDIM_ABSOLUTE);
230 rrddim_add(st, "buffers", NULL, 1, 1024, RRDDIM_ABSOLUTE);
232 else rrdset_next(st);
234 rrddim_set(st, "free", MemFree);
235 rrddim_set(st, "used", MemUsed);
236 rrddim_set(st, "cached", Cached);
237 rrddim_set(st, "buffers", Buffers);
241 // --------------------------------------------------------------------
243 unsigned long long SwapUsed = SwapTotal - SwapFree;
245 if(SwapTotal || SwapUsed || SwapFree || do_swap == CONFIG_ONDEMAND_YES) {
246 do_swap = CONFIG_ONDEMAND_YES;
248 st = rrdset_find("system.swap");
250 st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED);
253 rrddim_add(st, "free", NULL, 1, 1024, RRDDIM_ABSOLUTE);
254 rrddim_add(st, "used", NULL, 1, 1024, RRDDIM_ABSOLUTE);
256 else rrdset_next(st);
258 rrddim_set(st, "used", SwapUsed);
259 rrddim_set(st, "free", SwapFree);
263 // --------------------------------------------------------------------
265 if(hwcorrupted && do_hwcorrupt && HardwareCorrupted > 0) {
266 do_hwcorrupt = CONFIG_ONDEMAND_YES;
268 st = rrdset_find("mem.hwcorrupt");
270 st = rrdset_create("mem", "hwcorrupt", NULL, "errors", NULL, "Hardware Corrupted ECC", "MB", 9000, update_every, RRDSET_TYPE_LINE);
273 rrddim_add(st, "HardwareCorrupted", NULL, 1, 1024, RRDDIM_ABSOLUTE);
275 else rrdset_next(st);
277 rrddim_set(st, "HardwareCorrupted", HardwareCorrupted);
281 // --------------------------------------------------------------------
284 st = rrdset_find("mem.committed");
286 st = rrdset_create("mem", "committed", NULL, "system", NULL, "Committed (Allocated) Memory", "MB", 5000, update_every, RRDSET_TYPE_AREA);
289 rrddim_add(st, "Committed_AS", NULL, 1, 1024, RRDDIM_ABSOLUTE);
291 else rrdset_next(st);
293 rrddim_set(st, "Committed_AS", Committed_AS);
297 // --------------------------------------------------------------------
300 st = rrdset_find("mem.writeback");
302 st = rrdset_create("mem", "writeback", NULL, "kernel", NULL, "Writeback Memory", "MB", 4000, update_every, RRDSET_TYPE_LINE);
305 rrddim_add(st, "Dirty", NULL, 1, 1024, RRDDIM_ABSOLUTE);
306 rrddim_add(st, "Writeback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
307 rrddim_add(st, "FuseWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
308 rrddim_add(st, "NfsWriteback", NULL, 1, 1024, RRDDIM_ABSOLUTE);
309 rrddim_add(st, "Bounce", NULL, 1, 1024, RRDDIM_ABSOLUTE);
311 else rrdset_next(st);
313 rrddim_set(st, "Dirty", Dirty);
314 rrddim_set(st, "Writeback", Writeback);
315 rrddim_set(st, "FuseWriteback", WritebackTmp);
316 rrddim_set(st, "NfsWriteback", NFS_Unstable);
317 rrddim_set(st, "Bounce", Bounce);
321 // --------------------------------------------------------------------
324 st = rrdset_find("mem.kernel");
326 st = rrdset_create("mem", "kernel", NULL, "kernel", NULL, "Memory Used by Kernel", "MB", 6000, update_every, RRDSET_TYPE_STACKED);
329 rrddim_add(st, "Slab", NULL, 1, 1024, RRDDIM_ABSOLUTE);
330 rrddim_add(st, "KernelStack", NULL, 1, 1024, RRDDIM_ABSOLUTE);
331 rrddim_add(st, "PageTables", NULL, 1, 1024, RRDDIM_ABSOLUTE);
332 rrddim_add(st, "VmallocUsed", NULL, 1, 1024, RRDDIM_ABSOLUTE);
334 else rrdset_next(st);
336 rrddim_set(st, "KernelStack", KernelStack);
337 rrddim_set(st, "Slab", Slab);
338 rrddim_set(st, "PageTables", PageTables);
339 rrddim_set(st, "VmallocUsed", VmallocUsed);
343 // --------------------------------------------------------------------
346 st = rrdset_find("mem.slab");
348 st = rrdset_create("mem", "slab", NULL, "slab", NULL, "Reclaimable Kernel Memory", "MB", 6500, update_every, RRDSET_TYPE_STACKED);
351 rrddim_add(st, "reclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE);
352 rrddim_add(st, "unreclaimable", NULL, 1, 1024, RRDDIM_ABSOLUTE);
354 else rrdset_next(st);
356 rrddim_set(st, "reclaimable", SReclaimable);
357 rrddim_set(st, "unreclaimable", SUnreclaim);