X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fcpu.c;h=d9453aa31f95d403870f343d642636b487917ad6;hb=86090b3d409634d016da7bbb0cbe43ed5a851d30;hp=eacc590b71d0b112a7bf93daf64f09bdbe4fea8e;hpb=4ff510ffa41e47f31c695c83f045fd79efecf5f4;p=collectd.git diff --git a/src/cpu.c b/src/cpu.c index eacc590b..d9453aa3 100644 --- a/src/cpu.c +++ b/src/cpu.c @@ -1,11 +1,10 @@ /** * collectd - src/cpu.c - * Copyright (C) 2005 Florian octo Forster + * Copyright (C) 2005-2007 Florian octo Forster * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. + * Free Software Foundation; only version 2 of the License is applicable. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -25,8 +24,6 @@ #include "plugin.h" #include "utils_debug.h" -#define MODULE_NAME "cpu" - #ifdef HAVE_MACH_KERN_RETURN_H # include #endif @@ -78,10 +75,31 @@ # define CPU_HAVE_READ 0 #endif +static data_source_t dsrc[5] = +{ + {"user", DS_TYPE_COUNTER, 0, 4294967295.0}, + {"nice", DS_TYPE_COUNTER, 0, 4294967295.0}, + {"syst", DS_TYPE_COUNTER, 0, 4294967295.0}, + {"idle", DS_TYPE_COUNTER, 0, 4294967295.0}, + {"wait", DS_TYPE_COUNTER, 0, 4294967295.0} +}; + +static data_set_t ds = +{ + "cpu", 5, dsrc +}; + +#if CPU_HAVE_READ #ifdef PROCESSOR_CPU_LOAD_INFO static mach_port_t port_host; static processor_port_array_t cpu_list; static mach_msg_type_number_t cpu_list_len; + +#if PROCESSOR_TEMPERATURE +static int cpu_temp_retry_counter = 0; +static int cpu_temp_retry_step = 1; +static int cpu_temp_retry_max = 1; +#endif /* PROCESSOR_TEMPERATURE */ /* #endif PROCESSOR_CPU_LOAD_INFO */ #elif defined(KERNEL_LINUX) @@ -100,36 +118,29 @@ static int numcpu; static int numcpu; #endif /* HAVE_SYSCTLBYNAME */ -static char *cpu_filename = "cpu-%s.rrd"; - -static char *ds_def[] = -{ - "DS:user:COUNTER:"COLLECTD_HEARTBEAT":0:U", - "DS:nice:COUNTER:"COLLECTD_HEARTBEAT":0:U", - "DS:syst:COUNTER:"COLLECTD_HEARTBEAT":0:U", - "DS:idle:COUNTER:"COLLECTD_HEARTBEAT":0:U", - "DS:wait:COUNTER:"COLLECTD_HEARTBEAT":0:U", - NULL -}; -static int ds_num = 5; - -static void cpu_init (void) +static int init (void) { #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE kern_return_t status; + int collectd_step; port_host = mach_host_self (); /* FIXME: Free `cpu_list' if it's not NULL */ if ((status = host_processors (port_host, &cpu_list, &cpu_list_len)) != KERN_SUCCESS) { - syslog (LOG_ERR, "cpu-plugin: host_processors returned %i\n", (int) status); + syslog (LOG_ERR, "cpu plugin: host_processors returned %i\n", (int) status); cpu_list_len = 0; - return; + return (-1); } DBG ("host_processors returned %i %s", (int) cpu_list_len, cpu_list_len == 1 ? "processor" : "processors"); - syslog (LOG_INFO, "cpu-plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s"); + syslog (LOG_INFO, "cpu plugin: Found %i processor%s.", (int) cpu_list_len, cpu_list_len == 1 ? "" : "s"); + + collectd_step = atoi (COLLECTD_STEP); + if ((collectd_step > 0) && (collectd_step <= 86400)) + cpu_temp_retry_max = 86400 / collectd_step; + /* #endif PROCESSOR_CPU_LOAD_INFO */ #elif defined(HAVE_LIBKSTAT) @@ -138,7 +149,7 @@ static void cpu_init (void) numcpu = 0; if (kc == NULL) - return; + return (-1); /* Solaris doesn't count linear.. *sigh* */ for (numcpu = 0, ksp_chain = kc->kc_chain; @@ -156,49 +167,43 @@ static void cpu_init (void) if (sysctlbyname ("hw.ncpu", &numcpu, &numcpu_size, NULL, 0) < 0) { syslog (LOG_WARNING, "cpu: sysctlbyname: %s", strerror (errno)); - return; + return (-1); } if (numcpu != 1) syslog (LOG_NOTICE, "cpu: Only one processor supported when using `sysctlbyname' (found %i)", numcpu); #endif - return; -} - -static void cpu_write (char *host, char *inst, char *val) -{ - char file[512]; - int status; - - status = snprintf (file, 512, cpu_filename, inst); - if (status < 1) - return; - else if (status >= 512) - return; + return (0); +} /* int init */ - rrd_update_file (host, file, val, ds_def, ds_num); -} - -#if CPU_HAVE_READ -#define BUFSIZE 512 -static void cpu_submit (int cpu_num, unsigned long long user, +static void submit (int cpu_num, unsigned long long user, unsigned long long nice, unsigned long long syst, unsigned long long idle, unsigned long long wait) { - char buf[BUFSIZE]; - char cpu[16]; - - if (snprintf (buf, BUFSIZE, "%u:%llu:%llu:%llu:%llu:%llu", (unsigned int) curtime, - user, nice, syst, idle, wait) >= BUFSIZE) - return; - snprintf (cpu, 16, "%i", cpu_num); - - plugin_submit (MODULE_NAME, cpu, buf); + value_t values[5]; + value_list_t vl = VALUE_LIST_INIT; + + values[0].counter = user; + values[1].counter = nice; + values[2].counter = syst; + values[3].counter = idle; + values[4].counter = wait; + + vl.values = values; + vl.values_len = 2; + vl.time = time (NULL); + strcpy (vl.host, hostname); + strcpy (vl.plugin, "cpu"); + strcpy (vl.plugin_instance, ""); + snprintf (vl.type_instance, sizeof (vl.type_instance), + "%i", cpu_num); + vl.type_instance[DATA_MAX_NAME_LEN - 1] = '\0'; + + plugin_dispatch_values ("cpu", &vl); } -#undef BUFSIZE -static void cpu_read (void) +static int cpu_read (void) { #if PROCESSOR_CPU_LOAD_INFO || PROCESSOR_TEMPERATURE int cpu; @@ -226,23 +231,35 @@ static void cpu_read (void) PROCESSOR_CPU_LOAD_INFO, &cpu_host, (processor_info_t) &cpu_info, &cpu_info_len)) != KERN_SUCCESS) { - syslog (LOG_ERR, "processor_info failed with status %i\n", (int) status); + syslog (LOG_ERR, "cpu plugin: processor_info failed with status %i", (int) status); continue; } if (cpu_info_len < CPU_STATE_MAX) { - syslog (LOG_ERR, "processor_info returned only %i elements..\n", cpu_info_len); + syslog (LOG_ERR, "cpu plugin: processor_info returned only %i elements..", cpu_info_len); continue; } - cpu_submit (cpu, cpu_info.cpu_ticks[CPU_STATE_USER], + submit (cpu, cpu_info.cpu_ticks[CPU_STATE_USER], cpu_info.cpu_ticks[CPU_STATE_NICE], cpu_info.cpu_ticks[CPU_STATE_SYSTEM], cpu_info.cpu_ticks[CPU_STATE_IDLE], 0ULL); #endif /* PROCESSOR_CPU_LOAD_INFO */ #if PROCESSOR_TEMPERATURE + /* + * Not all Apple computers do have this ability. To minimize + * the messages sent to the syslog we do an exponential + * stepback if `processor_info' fails. We still try ~once a day + * though.. + */ + if (cpu_temp_retry_counter > 0) + { + cpu_temp_retry_counter--; + continue; + } + cpu_temp_len = PROCESSOR_INFO_MAX; status = processor_info (cpu_list[cpu], @@ -251,8 +268,14 @@ static void cpu_read (void) cpu_temp, &cpu_temp_len); if (status != KERN_SUCCESS) { - syslog (LOG_ERR, "processor_info failed: %s", + syslog (LOG_ERR, "cpu plugin: processor_info failed: %s", mach_error_string (status)); + + cpu_temp_retry_counter = cpu_temp_retry_step; + cpu_temp_retry_step *= 2; + if (cpu_temp_retry_step > cpu_temp_retry_max) + cpu_temp_retry_step = cpu_temp_retry_max; + continue; } @@ -263,29 +286,38 @@ static void cpu_read (void) continue; } + cpu_temp_retry_counter = 0; + cpu_temp_retry_step = 1; + DBG ("cpu_temp = %i", (int) cpu_temp); #endif /* PROCESSOR_TEMPERATURE */ } /* #endif PROCESSOR_CPU_LOAD_INFO */ #elif defined(KERNEL_LINUX) -# define BUFSIZE 1024 int cpu; unsigned long long user, nice, syst, idle; unsigned long long wait, intr, sitr; /* sitr == soft interrupt */ FILE *fh; - char buf[BUFSIZE]; + char buf[1024]; char *fields[9]; int numfields; + static complain_t complain_obj; + if ((fh = fopen ("/proc/stat", "r")) == NULL) { - syslog (LOG_WARNING, "cpu: fopen: %s", strerror (errno)); - return; + plugin_complain (LOG_ERR, &complain_obj, "cpu plugin: " + "fopen (/proc/stat) failed: %s", + strerror (errno)); + return (-1); } - while (fgets (buf, BUFSIZE, fh) != NULL) + plugin_relief (LOG_NOTICE, &complain_obj, "cpu plugin: " + "fopen (/proc/stat) succeeded."); + + while (fgets (buf, 1024, fh) != NULL) { if (strncmp (buf, "cpu", 3)) continue; @@ -317,11 +349,10 @@ static void cpu_read (void) wait = 0LL; } - cpu_submit (cpu, user, nice, syst, idle, wait); + submit (cpu, user, nice, syst, idle, wait); } fclose (fh); -#undef BUFSIZE /* #endif defined(KERNEL_LINUX) */ #elif defined(HAVE_LIBKSTAT) @@ -342,7 +373,7 @@ static void cpu_read (void) syst = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_KERNEL]; wait = (unsigned long long) cs.cpu_sysinfo.cpu[CPU_WAIT]; - cpu_submit (ksp[cpu]->ks_instance, + submit (ksp[cpu]->ks_instance, user, 0LL, syst, idle, wait); } /* #endif defined(HAVE_LIBKSTAT) */ @@ -351,29 +382,37 @@ static void cpu_read (void) long cpuinfo[CPUSTATES]; size_t cpuinfo_size; + static complain_t complain_obj; + cpuinfo_size = sizeof (cpuinfo); if (sysctlbyname("kern.cp_time", &cpuinfo, &cpuinfo_size, NULL, 0) < 0) { - syslog (LOG_WARNING, "cpu: sysctlbyname: %s", strerror (errno)); + plugin_complain (LOG_ERR, &complain_obj, "cpu plugin: " + "sysctlbyname failed: %s.", + strerror (errno)); return; } + plugin_relief (LOG_NOTICE, &complain_obj, "cpu plugin: " + "sysctlbyname succeeded."); + cpuinfo[CP_SYS] += cpuinfo[CP_INTR]; /* FIXME: Instance is always `0' */ - cpu_submit (0, cpuinfo[CP_USER], cpuinfo[CP_NICE], cpuinfo[CP_SYS], cpuinfo[CP_IDLE], 0LL); + submit (0, cpuinfo[CP_USER], cpuinfo[CP_NICE], cpuinfo[CP_SYS], cpuinfo[CP_IDLE], 0LL); #endif - return; + return (0); } -#else -# define cpu_read NULL #endif /* CPU_HAVE_READ */ void module_register (void) { - plugin_register (MODULE_NAME, cpu_init, cpu_read, cpu_write); -} + plugin_register_data_set (&ds); -#undef MODULE_NAME +#if CPU_HAVE_READ + plugin_register_init ("cpu", init); + plugin_register_read ("cpu", cpu_read); +#endif /* CPU_HAVE_READ */ +}