int do_proc_interrupts(int update_every, unsigned long long dt) { static procfile *ff = NULL; static int cpus = -1, do_per_core = -1; struct interrupt *irrs = NULL; if(dt) {}; if(do_per_core == -1) do_per_core = config_get_boolean("plugin:proc:/proc/interrupts", "interrupts per core", 1); if(!ff) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/interrupts"); ff = procfile_open(config_get("plugin:proc:/proc/interrupts", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT); } if(!ff) return 1; ff = procfile_readall(ff); if(!ff) return 0; // we return 0, so that we will retry to open it next time uint32_t lines = procfile_lines(ff), l; uint32_t words = procfile_linewords(ff, 0), w; if(!lines) { error("Cannot read /proc/interrupts, zero lines reported."); return 1; } // find how many CPUs are there if(cpus == -1) { cpus = 0; for(w = 0; w < words ; w++) { if(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0) cpus++; } } if(!cpus) { error("PLUGIN: PROC_INTERRUPTS: Cannot find the number of CPUs in /proc/interrupts"); return 1; } // allocate the size we need; irrs = get_interrupts_array(lines, cpus); irrs[0].used = 0; // loop through all lines for(l = 1; l < lines ; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); irr->used = 0; irr->total = 0; words = procfile_linewords(ff, l); if(!words) continue; irr->id = procfile_lineword(ff, l, 0); if(!irr->id || !irr->id[0]) continue; int idlen = strlen(irr->id); if(irr->id[idlen - 1] == ':') irr->id[idlen - 1] = '\0'; int c; for(c = 0; c < cpus ; c++) { if((c + 1) < (int)words) irr->value[c] = strtoull(procfile_lineword(ff, l, (uint32_t)(c + 1)), NULL, 10); else irr->value[c] = 0; irr->total += irr->value[c]; } if(isdigit(irr->id[0]) && (uint32_t)(cpus + 2) < words) { strncpyz(irr->name, procfile_lineword(ff, l, words - 1), MAX_INTERRUPT_NAME); int nlen = strlen(irr->name); if(nlen < (MAX_INTERRUPT_NAME-1)) { irr->name[nlen] = '_'; strncpyz(&irr->name[nlen + 1], irr->id, MAX_INTERRUPT_NAME - nlen); } } else { strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME); } irr->used = 1; } RRDSET *st; // -------------------------------------------------------------------- st = rrdset_find_bytype("system", "interrupts"); if(!st) { st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED); for(l = 0; l < lines ; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(!irr->used) continue; rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); } } else rrdset_next(st); for(l = 0; l < lines ; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(!irr->used) continue; rrddim_set(st, irr->id, irr->total); } rrdset_done(st); if(do_per_core) { int c; for(c = 0; c < cpus ; c++) { char id[256+1]; snprintfz(id, 256, "cpu%d_interrupts", c); st = rrdset_find_bytype("cpu", id); if(!st) { char name[256+1], title[256+1]; snprintfz(name, 256, "cpu%d_interrupts", c); snprintfz(title, 256, "CPU%d Interrupts", c); st = rrdset_create("cpu", id, name, "interrupts", "cpu.interrupts", title, "interrupts/s", 2000 + c, update_every, RRDSET_TYPE_STACKED); for(l = 0; l < lines ; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(!irr->used) continue; rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); } } else rrdset_next(st); for(l = 0; l < lines ; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(!irr->used) continue; rrddim_set(st, irr->id, irr->value[c]); } rrdset_done(st); } } return 0; }
int do_proc_interrupts(int update_every, usec_t dt) { (void)dt; static procfile *ff = NULL; static int cpus = -1, do_per_core = -1; struct interrupt *irrs = NULL; if(unlikely(do_per_core == -1)) do_per_core = config_get_boolean("plugin:proc:/proc/interrupts", "interrupts per core", 1); if(unlikely(!ff)) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/interrupts"); ff = procfile_open(config_get("plugin:proc:/proc/interrupts", "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; uint32_t words = procfile_linewords(ff, 0); if(unlikely(!lines)) { error("Cannot read /proc/interrupts, zero lines reported."); return 1; } // find how many CPUs are there if(unlikely(cpus == -1)) { uint32_t w; cpus = 0; for(w = 0; w < words ; w++) { if(likely(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)) cpus++; } } if(unlikely(!cpus)) { error("PLUGIN: PROC_INTERRUPTS: Cannot find the number of CPUs in /proc/interrupts"); return 1; } // allocate the size we need; irrs = get_interrupts_array(lines, cpus); irrs[0].used = 0; // loop through all lines for(l = 1; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); irr->used = 0; irr->total = 0; words = procfile_linewords(ff, l); if(unlikely(!words)) continue; irr->id = procfile_lineword(ff, l, 0); if(unlikely(!irr->id || !irr->id[0])) continue; int idlen = strlen(irr->id); if(unlikely(irr->id[idlen - 1] == ':')) irr->id[idlen - 1] = '\0'; int c; for(c = 0; c < cpus ;c++) { if(likely((c + 1) < (int)words)) irr->cpu[c].value = strtoull(procfile_lineword(ff, l, (uint32_t)(c + 1)), NULL, 10); else irr->cpu[c].value = 0; irr->total += irr->cpu[c].value; } if(unlikely(isdigit(irr->id[0]) && (uint32_t)(cpus + 2) < words)) { strncpyz(irr->name, procfile_lineword(ff, l, words - 1), MAX_INTERRUPT_NAME); int nlen = strlen(irr->name); int idlen = strlen(irr->id); if(likely(nlen + 1 + idlen <= MAX_INTERRUPT_NAME)) { irr->name[nlen] = '_'; strncpyz(&irr->name[nlen + 1], irr->id, MAX_INTERRUPT_NAME - nlen - 1); } else { irr->name[MAX_INTERRUPT_NAME - idlen - 1] = '_'; strncpyz(&irr->name[MAX_INTERRUPT_NAME - idlen], irr->id, idlen); } } else { strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME); } irr->used = 1; } RRDSET *st; // -------------------------------------------------------------------- st = rrdset_find_bytype("system", "interrupts"); if(unlikely(!st)) st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED); else rrdset_next(st); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; // some interrupt may have changed without changing the total number of lines // if the same number of interrupts have been added and removed between two // calls of this function. if(unlikely(!irr->rd || strncmp(irr->rd->name, irr->name, MAX_INTERRUPT_NAME) != 0)) { irr->rd = rrddim_find(st, irr->id); if(unlikely(!irr->rd)) irr->rd = rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); else rrddim_set_name(st, irr->rd, irr->name); // also reset per cpu RRDDIMs to avoid repeating strncmp() in the per core loop if(likely(do_per_core)) { int c; for (c = 0; c < cpus ;c++) irr->cpu[c].rd = NULL; } } rrddim_set_by_pointer(st, irr->rd, irr->total); } rrdset_done(st); if(likely(do_per_core)) { int c; for(c = 0; c < cpus ;c++) { char id[50+1]; snprintfz(id, 50, "cpu%d_interrupts", c); st = rrdset_find_bytype("cpu", id); if(unlikely(!st)) { char title[100+1]; snprintfz(title, 100, "CPU%d Interrupts", c); st = rrdset_create("cpu", id, NULL, "interrupts", "cpu.interrupts", title, "interrupts/s", 1100 + c, update_every, RRDSET_TYPE_STACKED); } else rrdset_next(st); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; if(unlikely(!irr->cpu[c].rd)) { irr->cpu[c].rd = rrddim_find(st, irr->id); if(unlikely(!irr->cpu[c].rd)) irr->cpu[c].rd = rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL); else rrddim_set_name(st, irr->cpu[c].rd, irr->name); } rrddim_set_by_pointer(st, irr->cpu[c].rd, irr->cpu[c].value); } rrdset_done(st); } } return 0; }
int do_proc_softirqs(int update_every, usec_t dt) { (void)dt; static procfile *ff = NULL; static int cpus = -1, do_per_core = -1; struct interrupt *irrs = NULL; if(unlikely(do_per_core == -1)) do_per_core = config_get_boolean("plugin:proc:/proc/softirqs", "interrupts per core", 1); if(unlikely(!ff)) { char filename[FILENAME_MAX + 1]; snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/softirqs"); ff = procfile_open(config_get("plugin:proc:/proc/softirqs", "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; size_t words = procfile_linewords(ff, 0); if(unlikely(!lines)) { error("Cannot read /proc/softirqs, zero lines reported."); return 1; } // find how many CPUs are there if(unlikely(cpus == -1)) { uint32_t w; cpus = 0; for(w = 0; w < words ; w++) { if(likely(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)) cpus++; } } if(unlikely(!cpus)) { error("PLUGIN: PROC_SOFTIRQS: Cannot find the number of CPUs in /proc/softirqs"); return 1; } // allocate the size we need; irrs = get_interrupts_array(lines, cpus); irrs[0].used = 0; // loop through all lines for(l = 1; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); irr->used = 0; irr->total = 0; words = procfile_linewords(ff, l); if(unlikely(!words)) continue; irr->id = procfile_lineword(ff, l, 0); if(unlikely(!irr->id || !irr->id[0])) continue; int c; for(c = 0; c < cpus ;c++) { if(likely((c + 1) < (int)words)) irr->cpu[c].value = str2ull(procfile_lineword(ff, l, (uint32_t)(c + 1))); else irr->cpu[c].value = 0; irr->total += irr->cpu[c].value; } strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME); irr->used = 1; } // -------------------------------------------------------------------- static RRDSET *st_system_softirqs = NULL; if(unlikely(!st_system_softirqs)) st_system_softirqs = rrdset_create_localhost( "system" , "softirqs" , NULL , "softirqs" , NULL , "System softirqs" , "softirqs/s" , PLUGIN_PROC_NAME , PLUGIN_PROC_MODULE_SOFTIRQS_NAME , NETDATA_CHART_PRIO_SYSTEM_SOFTIRQS , update_every , RRDSET_TYPE_STACKED ); else rrdset_next(st_system_softirqs); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; // some interrupt may have changed without changing the total number of lines // if the same number of interrupts have been added and removed between two // calls of this function. if(unlikely(!irr->rd || strncmp(irr->name, irr->rd->name, MAX_INTERRUPT_NAME) != 0)) { irr->rd = rrddim_find(st_system_softirqs, irr->id); if(unlikely(!irr->rd)) irr->rd = rrddim_add(st_system_softirqs, irr->id, irr->name, 1, 1, RRD_ALGORITHM_INCREMENTAL); else rrddim_set_name(st_system_softirqs, irr->rd, irr->name); // also reset per cpu RRDDIMs to avoid repeating strncmp() in the per core loop if(likely(do_per_core)) { int c; for (c = 0; c < cpus ;c++) irr->cpu[c].rd = NULL; } } rrddim_set_by_pointer(st_system_softirqs, irr->rd, irr->total); } rrdset_done(st_system_softirqs); // -------------------------------------------------------------------- if(do_per_core) { static RRDSET **core_st = NULL; static int old_cpus = 0; if(old_cpus < cpus) { core_st = reallocz(core_st, sizeof(RRDSET *) * cpus); memset(&core_st[old_cpus], 0, sizeof(RRDSET *) * (cpus - old_cpus)); old_cpus = cpus; } int c; for(c = 0; c < cpus ; c++) { if(unlikely(!core_st[c])) { // find if everything is just zero unsigned long long core_sum = 0; for (l = 0; l < lines; l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if (unlikely(!irr->used)) continue; core_sum += irr->cpu[c].value; } if (unlikely(core_sum == 0)) continue; // try next core char id[50 + 1]; snprintfz(id, 50, "cpu%d_softirqs", c); char title[100 + 1]; snprintfz(title, 100, "CPU%d softirqs", c); core_st[c] = rrdset_create_localhost( "cpu" , id , NULL , "softirqs" , "cpu.softirqs" , title , "softirqs/s" , PLUGIN_PROC_NAME , PLUGIN_PROC_MODULE_SOFTIRQS_NAME , NETDATA_CHART_PRIO_SOFTIRQS_PER_CORE + c , update_every , RRDSET_TYPE_STACKED ); } else rrdset_next(core_st[c]); for(l = 0; l < lines ;l++) { struct interrupt *irr = irrindex(irrs, l, cpus); if(unlikely(!irr->used)) continue; if(unlikely(!irr->cpu[c].rd)) { irr->cpu[c].rd = rrddim_find(core_st[c], irr->id); if(unlikely(!irr->cpu[c].rd)) irr->cpu[c].rd = rrddim_add(core_st[c], irr->id, irr->name, 1, 1, RRD_ALGORITHM_INCREMENTAL); else rrddim_set_name(core_st[c], irr->cpu[c].rd, irr->name); } rrddim_set_by_pointer(core_st[c], irr->cpu[c].rd, irr->cpu[c].value); } rrdset_done(core_st[c]); } } return 0; }