-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
#include "common.h"
-#include "log.h"
-#include "appconfig.h"
-#include "procfile.h"
-#include "rrd.h"
-#include "plugin_proc.h"
#define RRD_TYPE_DISK "disk"
-struct disk {
- unsigned long major;
- unsigned long minor;
- int partition_id; // -1 = this is not a partition
- struct disk *next;
+#define DISK_TYPE_PHYSICAL 1
+#define DISK_TYPE_PARTITION 2
+#define DISK_TYPE_CONTAINER 3
+
+#ifndef NETDATA_RELOAD_MOUNTINFO_EVERY
+#define NETDATA_RELOAD_MOUNTINFO_EVERY 10
+#endif
+
+static struct disk {
+ char *disk; // the name of the disk (sda, sdb, etc)
+ unsigned long major;
+ unsigned long minor;
+ int sector_size;
+ int type;
+
+ char *mount_point;
+ uint32_t mount_point_hash;
+
+ // disk options caching
+ int configured;
+ int do_io;
+ int do_ops;
+ int do_mops;
+ int do_iotime;
+ int do_qops;
+ int do_util;
+ int do_backlog;
+ int do_space;
+ int do_inodes;
+
+ struct disk *next;
} *disk_root = NULL;
-struct disk *get_disk(unsigned long major, unsigned long minor) {
- static char path_find_block_device_partition[FILENAME_MAX + 1] = "";
- struct disk *d;
-
- // search for it in our RAM list.
- // this is sequential, but since we just walk through
- // and the number of disks / partitions in a system
- // should not be that many, it should be acceptable
- for(d = disk_root; d ; d = d->next)
- if(unlikely(d->major == major && d->minor == minor))
- break;
-
- // if we found it, return it
- if(likely(d))
- return d;
-
- if(unlikely(!path_find_block_device_partition[0])) {
- char filename[FILENAME_MAX + 1];
- snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/sys/dev/block/%lu:%lu/partition");
- snprintf(path_find_block_device_partition, FILENAME_MAX, "%s", config_get("plugin:proc:/proc/diskstats", "path to get block device partition", filename));
- }
-
- // not found
- // create a new disk structure
- d = (struct disk *)malloc(sizeof(struct disk));
- if(!d) fatal("Cannot allocate memory for struct disk in proc_diskstats.");
-
- d->major = major;
- d->minor = minor;
- d->partition_id = -1;
- d->next = NULL;
-
- // append it to the list
- if(!disk_root)
- disk_root = d;
- else {
- struct disk *last;
- for(last = disk_root; last->next ;last = last->next);
- last->next = d;
- }
-
- // find if it is a partition
- // by reading /sys/dev/block/MAJOR:MINOR/partition
- char buffer[FILENAME_MAX + 1];
- snprintf(buffer, FILENAME_MAX, path_find_block_device_partition, major, minor);
-
- int fd = open(buffer, O_RDONLY, 0666);
- if(likely(fd != -1)) {
- // we opened it
- int bytes = read(fd, buffer, FILENAME_MAX);
- close(fd);
-
- if(bytes > 0)
- d->partition_id = strtoul(buffer, NULL, 10);
- }
- // if the /partition file does not exist, it is a disk, not a partition
-
- return d;
+static struct mountinfo *disk_mountinfo_root = NULL;
+
+static inline void mountinfo_reload(int force) {
+ static time_t last_loaded = 0;
+ time_t now = time(NULL);
+
+ if(force || now - last_loaded >= NETDATA_RELOAD_MOUNTINFO_EVERY) {
+//#ifdef NETDATA_INTERNAL_CHECKS
+// info("Reloading mountinfo");
+//#endif
+
+ // mountinfo_free() can be called with NULL disk_mountinfo_root
+ mountinfo_free(disk_mountinfo_root);
+
+ // re-read mountinfo in case something changed
+ disk_mountinfo_root = mountinfo_read();
+
+ last_loaded = now;
+ }
+}
+
+
+// linked list of mount points that are by default disabled
+static struct excluded_mount_point {
+ const char *prefix;
+ size_t len;
+ struct excluded_mount_point *next;
+} *excluded_mount_points = NULL;
+
+static inline int is_mount_point_excluded(const char *mount_point) {
+ static int initialized = 0;
+
+ if(unlikely(!initialized)) {
+ initialized = 1;
+
+ char *a = config_get("plugin:proc:/proc/diskstats", "exclude space metrics on paths", "/var/run/user/ /run/user/");
+ if(a && *a) {
+ char *s = a;
+
+ while(s && *s) {
+ // skip all spaces
+ while(isspace(*s)) s++;
+
+ // empty string
+ if(unlikely(!*s)) break;
+
+ // find the next space
+ char *c = s;
+ while(*c && !isspace(*c)) c++;
+
+ char *n;
+ if(likely(*c)) n = c + 1;
+ else n = NULL;
+
+ // terminate our string
+ *c = '\0';
+
+ // allocate the structure
+ struct excluded_mount_point *m = mallocz(sizeof(struct excluded_mount_point));
+ m->prefix = strdup(s);
+ m->len = strlen(m->prefix);
+ m->next = excluded_mount_points;
+ excluded_mount_points = m;
+
+ // prepare for next loop
+ s = n;
+ if(likely(n)) *c = ' ';
+ }
+ }
+ }
+
+ size_t len = strlen(mount_point);
+ struct excluded_mount_point *m;
+ for(m = excluded_mount_points; m ; m = m->next) {
+ if(m->len <= len) {
+ // fprintf(stderr, "SPACE: comparing '%s' with '%s'\n", mount_point, m->prefix);
+ if(unlikely(strncmp(m->prefix, mount_point, m->len) == 0)) {
+ // fprintf(stderr, "SPACE: excluded '%s'\n", mount_point);
+ return 1;
+ }
+ }
+ }
+
+ // fprintf(stderr, "SPACE: included '%s'\n", mount_point);
+ return 0;
+}
+
+// Data to be stored in DICTIONARY mount_points used by do_disk_space_stats().
+// This DICTIONARY is used to lookup the settings of the mount point on each iteration.
+struct mount_point_metadata {
+ int do_space;
+ int do_inodes;
+};
+
+static inline void do_disk_space_stats(struct disk *d, const char *mount_point, const char *mount_source, const char *disk, const char *family, int update_every, unsigned long long dt) {
+ (void)dt;
+
+ static DICTIONARY *mount_points = NULL;
+ int do_space, do_inodes;
+
+ if(unlikely(!mount_points)) {
+ mount_points = dictionary_create(DICTIONARY_FLAG_SINGLE_THREADED);
+ }
+
+ if(unlikely(d)) {
+ // verify we collected the metrics for the right disk.
+ // if not the mountpoint has changed.
+
+ struct stat buff_stat;
+ if(unlikely(stat(mount_point, &buff_stat) == -1)) {
+ error("Failed to stat() for '%s' (disk '%s')", mount_point, disk);
+ return;
+ }
+ else if(unlikely(major(buff_stat.st_dev) != d->major || minor(buff_stat.st_dev) != d->minor)) {
+ error("Disk '%s' (disk '%s') switched major:minor", mount_point, disk);
+ freez(d->mount_point);
+ d->mount_point = NULL;
+ d->mount_point_hash = 0;
+ return;
+ }
+
+ do_space = d->do_space;
+ do_inodes = d->do_inodes;
+ }
+ else {
+ struct mount_point_metadata *m = dictionary_get(mount_points, mount_point);
+ if(unlikely(!m)) {
+ char var_name[4096 + 1];
+ snprintfz(var_name, 4096, "plugin:proc:/proc/diskstats:%s", mount_point);
+
+ int def_space = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "space usage for all disks", CONFIG_ONDEMAND_ONDEMAND);
+ int def_inodes = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "inodes usage for all disks", CONFIG_ONDEMAND_ONDEMAND);
+
+ if(unlikely(is_mount_point_excluded(mount_point))) {
+ def_space = CONFIG_ONDEMAND_NO;
+ def_inodes = CONFIG_ONDEMAND_NO;
+ }
+
+ do_space = config_get_boolean_ondemand(var_name, "space usage", def_space);
+ do_inodes = config_get_boolean_ondemand(var_name, "inodes usage", def_inodes);
+
+ struct mount_point_metadata mp = {
+ .do_space = do_space,
+ .do_inodes = do_inodes
+ };
+
+ dictionary_set(mount_points, mount_point, &mp, sizeof(struct mount_point_metadata));
+ }
+ else {
+ do_space = m->do_space;
+ do_inodes = m->do_inodes;
+ }
+ }
+
+ if(unlikely(do_space == CONFIG_ONDEMAND_NO && do_inodes == CONFIG_ONDEMAND_NO))
+ return;
+
+ struct statvfs buff_statvfs;
+ if (statvfs(mount_point, &buff_statvfs) < 0) {
+ error("Failed statvfs() for '%s' (disk '%s')", mount_point, disk);
+ return;
+ }
+
+ // taken from get_fs_usage() found in coreutils
+ unsigned long bsize = (buff_statvfs.f_frsize) ? buff_statvfs.f_frsize : buff_statvfs.f_bsize;
+
+ fsblkcnt_t bavail = buff_statvfs.f_bavail;
+ fsblkcnt_t btotal = buff_statvfs.f_blocks;
+ fsblkcnt_t bavail_root = buff_statvfs.f_bfree;
+ fsblkcnt_t breserved_root = bavail_root - bavail;
+ fsblkcnt_t bused;
+ if(likely(btotal >= bavail_root))
+ bused = btotal - bavail_root;
+ else
+ bused = bavail_root - btotal;
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ if(unlikely(btotal != bavail + breserved_root + bused))
+ error("Disk block statistics for '%s' (disk '%s') do not sum up: total = %llu, available = %llu, reserved = %llu, used = %llu", mount_point, disk, (unsigned long long)btotal, (unsigned long long)bavail, (unsigned long long)breserved_root, (unsigned long long)bused);
+#endif
+
+ // --------------------------------------------------------------------------
+
+ fsfilcnt_t favail = buff_statvfs.f_favail;
+ fsfilcnt_t ftotal = buff_statvfs.f_files;
+ fsfilcnt_t favail_root = buff_statvfs.f_ffree;
+ fsfilcnt_t freserved_root = favail_root - favail;
+ fsfilcnt_t fused = ftotal - favail_root;
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ if(unlikely(btotal != bavail + breserved_root + bused))
+ error("Disk inode statistics for '%s' (disk '%s') do not sum up: total = %llu, available = %llu, reserved = %llu, used = %llu", mount_point, disk, (unsigned long long)ftotal, (unsigned long long)favail, (unsigned long long)freserved_root, (unsigned long long)fused);
+#endif
+
+ // --------------------------------------------------------------------------
+
+ RRDSET *st;
+
+ if(do_space == CONFIG_ONDEMAND_YES || (do_space == CONFIG_ONDEMAND_ONDEMAND && (bavail || breserved_root || bused))) {
+ st = rrdset_find_bytype("disk_space", disk);
+ if(unlikely(!st)) {
+ char title[4096 + 1];
+ snprintfz(title, 4096, "Disk Space Usage for %s [%s]", family, mount_source);
+ st = rrdset_create("disk_space", disk, NULL, family, "disk.space", title, "GB", 2023, update_every, RRDSET_TYPE_STACKED);
+
+ rrddim_add(st, "avail", NULL, bsize, 1024*1024*1024, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "used" , NULL, bsize, 1024*1024*1024, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "reserved_for_root", "reserved for root", bsize, 1024*1024*1024, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "avail", bavail);
+ rrddim_set(st, "used", bused);
+ rrddim_set(st, "reserved_for_root", breserved_root);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------------
+
+ if(do_inodes == CONFIG_ONDEMAND_YES || (do_inodes == CONFIG_ONDEMAND_ONDEMAND && (favail || freserved_root || fused))) {
+ st = rrdset_find_bytype("disk_inodes", disk);
+ if(unlikely(!st)) {
+ char title[4096 + 1];
+ snprintfz(title, 4096, "Disk Files (inodes) Usage for %s [%s]", family, mount_source);
+ st = rrdset_create("disk_inodes", disk, NULL, family, "disk.inodes", title, "Inodes", 2024, update_every, RRDSET_TYPE_STACKED);
+
+ rrddim_add(st, "avail", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "used" , NULL, 1, 1, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "reserved_for_root", "reserved for root", 1, 1, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "avail", favail);
+ rrddim_set(st, "used", fused);
+ rrddim_set(st, "reserved_for_root", freserved_root);
+ rrdset_done(st);
+ }
+}
+
+static struct disk *get_disk(unsigned long major, unsigned long minor, char *disk) {
+ static char path_to_get_hw_sector_size[FILENAME_MAX + 1] = "";
+ static char path_to_get_hw_sector_size_partitions[FILENAME_MAX + 1] = "";
+ static char path_find_block_device[FILENAME_MAX + 1] = "";
+ struct disk *d;
+
+ // search for it in our RAM list.
+ // this is sequential, but since we just walk through
+ // and the number of disks / partitions in a system
+ // should not be that many, it should be acceptable
+ for(d = disk_root; d ; d = d->next)
+ if(unlikely(d->major == major && d->minor == minor))
+ break;
+
+ // if we found it, return it
+ if(likely(d))
+ return d;
+
+ // not found
+ // create a new disk structure
+ d = (struct disk *)mallocz(sizeof(struct disk));
+
+ d->disk = strdupz(disk);
+ d->major = major;
+ d->minor = minor;
+ d->type = DISK_TYPE_PHYSICAL; // Default type. Changed later if not correct.
+ d->configured = 0;
+ d->sector_size = 512; // the default, will be changed below
+ d->next = NULL;
+
+ // append it to the list
+ if(unlikely(!disk_root))
+ disk_root = d;
+ else {
+ struct disk *last;
+ for(last = disk_root; last->next ;last = last->next);
+ last->next = d;
+ }
+
+ // ------------------------------------------------------------------------
+ // find the type of the device
+
+ char buffer[FILENAME_MAX + 1];
+
+ // get the default path for finding info about the block device
+ if(unlikely(!path_find_block_device[0])) {
+ snprintfz(buffer, FILENAME_MAX, "%s%s", global_host_prefix, "/sys/dev/block/%lu:%lu/%s");
+ snprintfz(path_find_block_device, FILENAME_MAX, "%s", config_get("plugin:proc:/proc/diskstats", "path to get block device infos", buffer));
+ }
+
+ // find if it is a partition
+ // by checking if /sys/dev/block/MAJOR:MINOR/partition is readable.
+ snprintfz(buffer, FILENAME_MAX, path_find_block_device, major, minor, "partition");
+ if(likely(access(buffer, R_OK) == 0)) {
+ d->type = DISK_TYPE_PARTITION;
+ }
+ else {
+ // find if it is a container
+ // by checking if /sys/dev/block/MAJOR:MINOR/slaves has entries
+ snprintfz(buffer, FILENAME_MAX, path_find_block_device, major, minor, "slaves/");
+ DIR *dirp = opendir(buffer);
+ if(likely(dirp != NULL)) {
+ struct dirent *dp;
+ while( (dp = readdir(dirp)) ) {
+ // . and .. are also files in empty folders.
+ if(unlikely(strcmp(dp->d_name, ".") == 0 || strcmp(dp->d_name, "..") == 0)) {
+ continue;
+ }
+
+ d->type = DISK_TYPE_CONTAINER;
+
+ // Stop the loop after we found one file.
+ break;
+ }
+ if(unlikely(closedir(dirp) == -1))
+ error("Unable to close dir %s", buffer);
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // check if we can find its mount point
+
+ // mountinfo_find() can be called with NULL disk_mountinfo_root
+ struct mountinfo *mi = mountinfo_find(disk_mountinfo_root, d->major, d->minor);
+/* if(unlikely(!mi)) {
+ mountinfo_reload(1);
+
+ // search again for this disk
+ mi = mountinfo_find(disk_mountinfo_root, d->major, d->minor);
+ }
+*/
+ if(unlikely(mi)) {
+ d->mount_point = strdupz(mi->mount_point);
+ d->mount_point_hash = mi->mount_point_hash;
+ }
+ else {
+ d->mount_point = NULL;
+ d->mount_point_hash = 0;
+ }
+
+ // ------------------------------------------------------------------------
+ // find the disk sector size
+
+ if(unlikely(!path_to_get_hw_sector_size[0])) {
+ snprintfz(buffer, FILENAME_MAX, "%s%s", global_host_prefix, "/sys/block/%s/queue/hw_sector_size");
+ snprintfz(path_to_get_hw_sector_size, FILENAME_MAX, "%s", config_get("plugin:proc:/proc/diskstats", "path to get h/w sector size", buffer));
+ }
+ if(unlikely(!path_to_get_hw_sector_size_partitions[0])) {
+ snprintfz(buffer, FILENAME_MAX, "%s%s", global_host_prefix, "/sys/dev/block/%lu:%lu/subsystem/%s/../queue/hw_sector_size");
+ snprintfz(path_to_get_hw_sector_size_partitions, FILENAME_MAX, "%s", config_get("plugin:proc:/proc/diskstats", "path to get h/w sector size for partitions", buffer));
+ }
+
+ {
+ char tf[FILENAME_MAX + 1], *t;
+ strncpyz(tf, d->disk, FILENAME_MAX);
+
+ // replace all / with !
+ for(t = tf; *t ;t++)
+ if(unlikely(*t == '/')) *t = '!';
+
+ if(likely(d->type == DISK_TYPE_PARTITION))
+ snprintfz(buffer, FILENAME_MAX, path_to_get_hw_sector_size_partitions, d->major, d->minor, tf);
+ else
+ snprintfz(buffer, FILENAME_MAX, path_to_get_hw_sector_size, tf);
+
+ FILE *fpss = fopen(buffer, "r");
+ if(likely(fpss)) {
+ char buffer2[1024 + 1];
+ char *tmp = fgets(buffer2, 1024, fpss);
+
+ if(likely(tmp)) {
+ d->sector_size = atoi(tmp);
+ if(unlikely(d->sector_size <= 0)) {
+ error("Invalid sector size %d for device %s in %s. Assuming 512.", d->sector_size, d->disk, buffer);
+ d->sector_size = 512;
+ }
+ }
+ else error("Cannot read data for sector size for device %s from %s. Assuming 512.", d->disk, buffer);
+
+ fclose(fpss);
+ }
+ else error("Cannot read sector size for device %s from %s. Assuming 512.", d->disk, buffer);
+ }
+
+ return d;
+}
+
+static inline int select_positive_option(int option1, int option2) {
+ if(unlikely(option1 == CONFIG_ONDEMAND_YES || option2 == CONFIG_ONDEMAND_YES))
+ return CONFIG_ONDEMAND_YES;
+ else if(unlikely(option1 == CONFIG_ONDEMAND_ONDEMAND || option2 == CONFIG_ONDEMAND_ONDEMAND))
+ return CONFIG_ONDEMAND_ONDEMAND;
+
+ return CONFIG_ONDEMAND_NO;
}
int do_proc_diskstats(int update_every, unsigned long long dt) {
- static procfile *ff = NULL;
- static char path_to_get_hw_sector_size[FILENAME_MAX + 1] = "";
- static int enable_new_disks = -1;
- static int do_io = -1, do_ops = -1, do_mops = -1, do_iotime = -1, do_qops = -1, do_util = -1, do_backlog = -1;
-
- if(enable_new_disks == -1) enable_new_disks = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "enable new disks detected at runtime", CONFIG_ONDEMAND_ONDEMAND);
-
- if(do_io == -1) do_io = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "bandwidth for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_ops == -1) do_ops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "operations for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_mops == -1) do_mops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "merged operations for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_iotime == -1) do_iotime = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "i/o time for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_qops == -1) do_qops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "queued operations for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_util == -1) do_util = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "utilization percentage for all disks", CONFIG_ONDEMAND_ONDEMAND);
- if(do_backlog == -1)do_backlog = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "backlog for all disks", CONFIG_ONDEMAND_ONDEMAND);
-
- if(!ff) {
- char filename[FILENAME_MAX + 1];
- snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/diskstats");
- ff = procfile_open(config_get("plugin:proc:/proc/diskstats", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT);
- }
- if(!ff) return 1;
-
- if(!path_to_get_hw_sector_size[0]) {
- char filename[FILENAME_MAX + 1];
- snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/sys/block/%s/queue/hw_sector_size");
- snprintf(path_to_get_hw_sector_size, FILENAME_MAX, "%s", config_get("plugin:proc:/proc/diskstats", "path to get h/w sector size", filename));
- }
-
- 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;
-
- for(l = 0; l < lines ;l++) {
- char *disk;
- unsigned long long major = 0, minor = 0,
- reads = 0, mreads = 0, readsectors = 0, readms = 0,
- writes = 0, mwrites = 0, writesectors = 0, writems = 0,
- queued_ios = 0, busy_ms = 0, backlog_ms = 0;
-
- unsigned long long last_reads = 0, last_readsectors = 0, last_readms = 0,
- last_writes = 0, last_writesectors = 0, last_writems = 0,
- last_busy_ms = 0;
-
- words = procfile_linewords(ff, l);
- if(words < 14) continue;
-
- major = strtoull(procfile_lineword(ff, l, 0), NULL, 10);
- minor = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
- disk = procfile_lineword(ff, l, 2);
-
- // # of reads completed # of writes completed
- // This is the total number of reads or writes completed successfully.
- reads = strtoull(procfile_lineword(ff, l, 3), NULL, 10); // rd_ios
- writes = strtoull(procfile_lineword(ff, l, 7), NULL, 10); // wr_ios
-
- // # of reads merged # of writes merged
- // Reads and writes which are adjacent to each other may be merged for
- // efficiency. Thus two 4K reads may become one 8K read before it is
- // ultimately handed to the disk, and so it will be counted (and queued)
- mreads = strtoull(procfile_lineword(ff, l, 4), NULL, 10); // rd_merges_or_rd_sec
- mwrites = strtoull(procfile_lineword(ff, l, 8), NULL, 10); // wr_merges
-
- // # of sectors read # of sectors written
- // This is the total number of sectors read or written successfully.
- readsectors = strtoull(procfile_lineword(ff, l, 5), NULL, 10); // rd_sec_or_wr_ios
- writesectors = strtoull(procfile_lineword(ff, l, 9), NULL, 10); // wr_sec
-
- // # of milliseconds spent reading # of milliseconds spent writing
- // This is the total number of milliseconds spent by all reads or writes (as
- // measured from __make_request() to end_that_request_last()).
- readms = strtoull(procfile_lineword(ff, l, 6), NULL, 10); // rd_ticks_or_wr_sec
- writems = strtoull(procfile_lineword(ff, l, 10), NULL, 10); // wr_ticks
-
- // # of I/Os currently in progress
- // The only field that should go to zero. Incremented as requests are
- // given to appropriate struct request_queue and decremented as they finish.
- queued_ios = strtoull(procfile_lineword(ff, l, 11), NULL, 10); // ios_pgr
-
- // # of milliseconds spent doing I/Os
- // This field increases so long as field queued_ios is nonzero.
- busy_ms = strtoull(procfile_lineword(ff, l, 12), NULL, 10); // tot_ticks
-
- // weighted # of milliseconds spent doing I/Os
- // This field is incremented at each I/O start, I/O completion, I/O
- // merge, or read of these stats by the number of I/Os in progress
- // (field queued_ios) times the number of milliseconds spent doing I/O since the
- // last update of this field. This can provide an easy measure of both
- // I/O completion time and the backlog that may be accumulating.
- backlog_ms = strtoull(procfile_lineword(ff, l, 13), NULL, 10); // rq_ticks
-
- int def_enabled = 0;
-
- // remove slashes from disk names
- char *s;
- for(s = disk; *s ;s++) if(*s == '/') *s = '_';
-
- struct disk *d = get_disk(major, minor);
- if(d->partition_id == -1)
- def_enabled = enable_new_disks;
- else
- def_enabled = 0;
+ (void)dt;
+
+ static procfile *ff = NULL;
+ static int global_enable_new_disks_detected_at_runtime = CONFIG_ONDEMAND_YES,
+ global_enable_performance_for_physical_disks = CONFIG_ONDEMAND_ONDEMAND,
+ global_enable_performance_for_virtual_disks = CONFIG_ONDEMAND_NO,
+ global_enable_performance_for_partitions = CONFIG_ONDEMAND_NO,
+ global_enable_performance_for_mountpoints = CONFIG_ONDEMAND_NO,
+ global_enable_performance_for_virtual_mountpoints = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_io = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_ops = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_mops = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_iotime = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_qops = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_util = CONFIG_ONDEMAND_ONDEMAND,
+ global_do_backlog = CONFIG_ONDEMAND_ONDEMAND,
+ globals_initialized = 0;
+
+ if(unlikely(!globals_initialized)) {
+ global_enable_new_disks_detected_at_runtime = config_get_boolean("plugin:proc:/proc/diskstats", "enable new disks detected at runtime", global_enable_new_disks_detected_at_runtime);
+
+ global_enable_performance_for_physical_disks = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "performance metrics for physical disks", global_enable_performance_for_physical_disks);
+ global_enable_performance_for_virtual_disks = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "performance metrics for virtual disks", global_enable_performance_for_virtual_disks);
+ global_enable_performance_for_partitions = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "performance metrics for partitions", global_enable_performance_for_partitions);
+ global_enable_performance_for_mountpoints = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "performance metrics for mounted filesystems", global_enable_performance_for_mountpoints);
+ global_enable_performance_for_virtual_mountpoints = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "performance metrics for mounted virtual disks", global_enable_performance_for_virtual_mountpoints);
+
+ global_do_io = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "bandwidth for all disks", global_do_io);
+ global_do_ops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "operations for all disks", global_do_ops);
+ global_do_mops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "merged operations for all disks", global_do_mops);
+ global_do_iotime = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "i/o time for all disks", global_do_iotime);
+ global_do_qops = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "queued operations for all disks", global_do_qops);
+ global_do_util = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "utilization percentage for all disks", global_do_util);
+ global_do_backlog = config_get_boolean_ondemand("plugin:proc:/proc/diskstats", "backlog for all disks", global_do_backlog);
+
+ globals_initialized = 1;
+ }
+
+ if(unlikely(!ff)) {
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/diskstats");
+ ff = procfile_open(config_get("plugin:proc:/proc/diskstats", "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;
+
+ // this is smart enough not to reload it every time
+ mountinfo_reload(0);
+
+ for(l = 0; l < lines ;l++) {
+ // --------------------------------------------------------------------------
+ // Read parameters
+
+ char *disk;
+ unsigned long major = 0, minor = 0;
+
+ collected_number reads = 0, mreads = 0, readsectors = 0, readms = 0,
+ writes = 0, mwrites = 0, writesectors = 0, writems = 0,
+ queued_ios = 0, busy_ms = 0, backlog_ms = 0;
+
+ collected_number last_reads = 0, last_readsectors = 0, last_readms = 0,
+ last_writes = 0, last_writesectors = 0, last_writems = 0,
+ last_busy_ms = 0;
+
+ uint32_t words = procfile_linewords(ff, l);
+ if(unlikely(words < 14)) continue;
+
+ major = strtoul(procfile_lineword(ff, l, 0), NULL, 10);
+ minor = strtoul(procfile_lineword(ff, l, 1), NULL, 10);
+ disk = procfile_lineword(ff, l, 2);
+
+ // # of reads completed # of writes completed
+ // This is the total number of reads or writes completed successfully.
+ reads = strtoull(procfile_lineword(ff, l, 3), NULL, 10); // rd_ios
+ writes = strtoull(procfile_lineword(ff, l, 7), NULL, 10); // wr_ios
+
+ // # of reads merged # of writes merged
+ // Reads and writes which are adjacent to each other may be merged for
+ // efficiency. Thus two 4K reads may become one 8K read before it is
+ // ultimately handed to the disk, and so it will be counted (and queued)
+ mreads = strtoull(procfile_lineword(ff, l, 4), NULL, 10); // rd_merges_or_rd_sec
+ mwrites = strtoull(procfile_lineword(ff, l, 8), NULL, 10); // wr_merges
+
+ // # of sectors read # of sectors written
+ // This is the total number of sectors read or written successfully.
+ readsectors = strtoull(procfile_lineword(ff, l, 5), NULL, 10); // rd_sec_or_wr_ios
+ writesectors = strtoull(procfile_lineword(ff, l, 9), NULL, 10); // wr_sec
+
+ // # of milliseconds spent reading # of milliseconds spent writing
+ // This is the total number of milliseconds spent by all reads or writes (as
+ // measured from __make_request() to end_that_request_last()).
+ readms = strtoull(procfile_lineword(ff, l, 6), NULL, 10); // rd_ticks_or_wr_sec
+ writems = strtoull(procfile_lineword(ff, l, 10), NULL, 10); // wr_ticks
+
+ // # of I/Os currently in progress
+ // The only field that should go to zero. Incremented as requests are
+ // given to appropriate struct request_queue and decremented as they finish.
+ queued_ios = strtoull(procfile_lineword(ff, l, 11), NULL, 10); // ios_pgr
+
+ // # of milliseconds spent doing I/Os
+ // This field increases so long as field queued_ios is nonzero.
+ busy_ms = strtoull(procfile_lineword(ff, l, 12), NULL, 10); // tot_ticks
+
+ // weighted # of milliseconds spent doing I/Os
+ // This field is incremented at each I/O start, I/O completion, I/O
+ // merge, or read of these stats by the number of I/Os in progress
+ // (field queued_ios) times the number of milliseconds spent doing I/O since the
+ // last update of this field. This can provide an easy measure of both
+ // I/O completion time and the backlog that may be accumulating.
+ backlog_ms = strtoull(procfile_lineword(ff, l, 13), NULL, 10); // rq_ticks
+
+
+ // --------------------------------------------------------------------------
+ // remove slashes from disk names
+ char *s;
+ for(s = disk; *s ;s++)
+ if(*s == '/') *s = '_';
+
+ // --------------------------------------------------------------------------
+ // get a disk structure for the disk
+
+ struct disk *d = get_disk(major, minor, disk);
+
+
+ // --------------------------------------------------------------------------
+ // Set its family based on mount point
+
+ char *family = d->mount_point;
+ if(!family) family = disk;
+
+
+ // --------------------------------------------------------------------------
+ // Check the configuration for the device
+
+ if(unlikely(!d->configured)) {
+ char var_name[4096 + 1];
+ snprintfz(var_name, 4096, "plugin:proc:/proc/diskstats:%s", disk);
+
+ int def_enable = config_get_boolean_ondemand(var_name, "enable", global_enable_new_disks_detected_at_runtime);
+ if(unlikely(def_enable == CONFIG_ONDEMAND_NO)) {
+ // the user does not want any metrics for this disk
+ d->do_io = CONFIG_ONDEMAND_NO;
+ d->do_ops = CONFIG_ONDEMAND_NO;
+ d->do_mops = CONFIG_ONDEMAND_NO;
+ d->do_iotime = CONFIG_ONDEMAND_NO;
+ d->do_qops = CONFIG_ONDEMAND_NO;
+ d->do_util = CONFIG_ONDEMAND_NO;
+ d->do_backlog = CONFIG_ONDEMAND_NO;
+ d->do_space = CONFIG_ONDEMAND_NO;
+ d->do_inodes = CONFIG_ONDEMAND_NO;
+ }
+ else {
+ // this disk is enabled
+ // check its direct settings
+
+ int def_performance = CONFIG_ONDEMAND_ONDEMAND;
+ int def_space = (d->mount_point)?CONFIG_ONDEMAND_ONDEMAND:CONFIG_ONDEMAND_NO;
+
+ // since this is 'on demand' we can figure the performance settings
+ // based on the type of disk
+
+ switch(d->type) {
+ case DISK_TYPE_PHYSICAL:
+ def_performance = global_enable_performance_for_physical_disks;
+ break;
+
+ case DISK_TYPE_PARTITION:
+ def_performance = global_enable_performance_for_partitions;
+ break;
+
+ case DISK_TYPE_CONTAINER:
+ def_performance = global_enable_performance_for_virtual_disks;
+
+ if(d->mount_point)
+ def_performance = select_positive_option(def_performance, global_enable_performance_for_virtual_mountpoints);
+ break;
+ }
+
+ if(d->mount_point)
+ def_performance = select_positive_option(def_performance, global_enable_performance_for_mountpoints);
+
+ // ------------------------------------------------------------
+ // now we have def_performance and def_space
+ // to work further
+
+ // def_performance
+ // check the user configuration (this will also show our 'on demand' decision)
+ def_performance = config_get_boolean_ondemand(var_name, "enable performance metrics", def_performance);
+
+ int ddo_io = CONFIG_ONDEMAND_NO,
+ ddo_ops = CONFIG_ONDEMAND_NO,
+ ddo_mops = CONFIG_ONDEMAND_NO,
+ ddo_iotime = CONFIG_ONDEMAND_NO,
+ ddo_qops = CONFIG_ONDEMAND_NO,
+ ddo_util = CONFIG_ONDEMAND_NO,
+ ddo_backlog = CONFIG_ONDEMAND_NO;
+
+ // we enable individual performance charts only when def_performance is not disabled
+ if(unlikely(def_performance != CONFIG_ONDEMAND_NO)) {
+ ddo_io = global_do_io,
+ ddo_ops = global_do_ops,
+ ddo_mops = global_do_mops,
+ ddo_iotime = global_do_iotime,
+ ddo_qops = global_do_qops,
+ ddo_util = global_do_util,
+ ddo_backlog = global_do_backlog;
+ }
+
+ d->do_io = config_get_boolean_ondemand(var_name, "bandwidth", ddo_io);
+ d->do_ops = config_get_boolean_ondemand(var_name, "operations", ddo_ops);
+ d->do_mops = config_get_boolean_ondemand(var_name, "merged operations", ddo_mops);
+ d->do_iotime = config_get_boolean_ondemand(var_name, "i/o time", ddo_iotime);
+ d->do_qops = config_get_boolean_ondemand(var_name, "queued operations", ddo_qops);
+ d->do_util = config_get_boolean_ondemand(var_name, "utilization percentage", ddo_util);
+ d->do_backlog = config_get_boolean_ondemand(var_name, "backlog", ddo_backlog);
+
+ // def_space
+ if(unlikely(d->mount_point)) {
+ // check the user configuration (this will also show our 'on demand' decision)
+ def_space = config_get_boolean_ondemand(var_name, "enable space metrics", def_space);
+
+ int ddo_space = def_space,
+ ddo_inodes = def_space;
+
+ d->do_space = config_get_boolean_ondemand(var_name, "space usage", ddo_space);
+ d->do_inodes = config_get_boolean_ondemand(var_name, "inodes usage", ddo_inodes);
+ }
+ else {
+ // don't show settings for this disk
+ d->do_space = CONFIG_ONDEMAND_NO;
+ d->do_inodes = CONFIG_ONDEMAND_NO;
+ }
+ }
+
+ d->configured = 1;
+ }
+
+ RRDSET *st;
+
+ // --------------------------------------------------------------------------
+ // Do performance metrics
+
+ if(d->do_io == CONFIG_ONDEMAND_YES || (d->do_io == CONFIG_ONDEMAND_ONDEMAND && (readsectors || writesectors))) {
+ d->do_io = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype(RRD_TYPE_DISK, disk);
+ if(unlikely(!st)) {
+ st = rrdset_create(RRD_TYPE_DISK, disk, NULL, family, "disk.io", "Disk I/O Bandwidth", "kilobytes/s", 2000, update_every, RRDSET_TYPE_AREA);
+
+ rrddim_add(st, "reads", NULL, d->sector_size, 1024, RRDDIM_INCREMENTAL);
+ rrddim_add(st, "writes", NULL, d->sector_size * -1, 1024, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ last_readsectors = rrddim_set(st, "reads", readsectors);
+ last_writesectors = rrddim_set(st, "writes", writesectors);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_ops == CONFIG_ONDEMAND_YES || (d->do_ops == CONFIG_ONDEMAND_ONDEMAND && (reads || writes))) {
+ d->do_ops = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_ops", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_ops", disk, NULL, family, "disk.ops", "Disk Completed I/O Operations", "operations/s", 2001, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ last_reads = rrddim_set(st, "reads", reads);
+ last_writes = rrddim_set(st, "writes", writes);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_qops == CONFIG_ONDEMAND_YES || (d->do_qops == CONFIG_ONDEMAND_ONDEMAND && queued_ios)) {
+ d->do_qops = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_qops", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_qops", disk, NULL, family, "disk.qops", "Disk Current I/O Operations", "operations", 2002, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "operations", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "operations", queued_ios);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_backlog == CONFIG_ONDEMAND_YES || (d->do_backlog == CONFIG_ONDEMAND_ONDEMAND && backlog_ms)) {
+ d->do_backlog = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_backlog", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_backlog", disk, NULL, family, "disk.backlog", "Disk Backlog", "backlog (ms)", 2003, update_every, RRDSET_TYPE_AREA);
+ st->isdetail = 1;
+
+ rrddim_add(st, "backlog", NULL, 1, 10, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "backlog", backlog_ms);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_util == CONFIG_ONDEMAND_YES || (d->do_util == CONFIG_ONDEMAND_ONDEMAND && busy_ms)) {
+ d->do_util = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_util", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_util", disk, NULL, family, "disk.util", "Disk Utilization Time", "% of time working", 2004, update_every, RRDSET_TYPE_AREA);
+ st->isdetail = 1;
+
+ rrddim_add(st, "utilization", NULL, 1, 10, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ last_busy_ms = rrddim_set(st, "utilization", busy_ms);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_mops == CONFIG_ONDEMAND_YES || (d->do_mops == CONFIG_ONDEMAND_ONDEMAND && (mreads || mwrites))) {
+ d->do_mops = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_mops", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_mops", disk, NULL, family, "disk.mops", "Disk Merged Operations", "merged operations/s", 2021, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "reads", mreads);
+ rrddim_set(st, "writes", mwrites);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(d->do_iotime == CONFIG_ONDEMAND_YES || (d->do_iotime == CONFIG_ONDEMAND_ONDEMAND && (readms || writems))) {
+ d->do_iotime = CONFIG_ONDEMAND_YES;
+
+ st = rrdset_find_bytype("disk_iotime", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_iotime", disk, NULL, family, "disk.iotime", "Disk Total I/O Time", "milliseconds/s", 2022, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
+ rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
+ }
+ else rrdset_next(st);
+
+ last_readms = rrddim_set(st, "reads", readms);
+ last_writems = rrddim_set(st, "writes", writems);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+ // calculate differential charts
+ // only if this is not the first time we run
+
+ if(likely(dt)) {
+ if( (d->do_iotime == CONFIG_ONDEMAND_YES || (d->do_iotime == CONFIG_ONDEMAND_ONDEMAND && (readms || writems))) &&
+ (d->do_ops == CONFIG_ONDEMAND_YES || (d->do_ops == CONFIG_ONDEMAND_ONDEMAND && (reads || writes)))) {
+ st = rrdset_find_bytype("disk_await", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_await", disk, NULL, family, "disk.await", "Average Completed I/O Operation Time", "ms per operation", 2005, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "reads", (reads - last_reads) ? (readms - last_readms) / (reads - last_reads) : 0);
+ rrddim_set(st, "writes", (writes - last_writes) ? (writems - last_writems) / (writes - last_writes) : 0);
+ rrdset_done(st);
+ }
+
+ if( (d->do_io == CONFIG_ONDEMAND_YES || (d->do_io == CONFIG_ONDEMAND_ONDEMAND && (readsectors || writesectors))) &&
+ (d->do_ops == CONFIG_ONDEMAND_YES || (d->do_ops == CONFIG_ONDEMAND_ONDEMAND && (reads || writes)))) {
+ st = rrdset_find_bytype("disk_avgsz", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_avgsz", disk, NULL, family, "disk.avgsz", "Average Completed I/O Operation Bandwidth", "kilobytes per operation", 2006, update_every, RRDSET_TYPE_AREA);
+ st->isdetail = 1;
+
+ rrddim_add(st, "reads", NULL, d->sector_size, 1024, RRDDIM_ABSOLUTE);
+ rrddim_add(st, "writes", NULL, d->sector_size * -1, 1024, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "reads", (reads - last_reads) ? (readsectors - last_readsectors) / (reads - last_reads) : 0);
+ rrddim_set(st, "writes", (writes - last_writes) ? (writesectors - last_writesectors) / (writes - last_writes) : 0);
+ rrdset_done(st);
+ }
+
+ if( (d->do_util == CONFIG_ONDEMAND_YES || (d->do_util == CONFIG_ONDEMAND_ONDEMAND && busy_ms)) &&
+ (d->do_ops == CONFIG_ONDEMAND_YES || (d->do_ops == CONFIG_ONDEMAND_ONDEMAND && (reads || writes)))) {
+ st = rrdset_find_bytype("disk_svctm", disk);
+ if(unlikely(!st)) {
+ st = rrdset_create("disk_svctm", disk, NULL, family, "disk.svctm", "Average Service Time", "ms per operation", 2007, update_every, RRDSET_TYPE_LINE);
+ st->isdetail = 1;
+
+ rrddim_add(st, "svctm", NULL, 1, 1, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "svctm", ((reads - last_reads) + (writes - last_writes)) ? (busy_ms - last_busy_ms) / ((reads - last_reads) + (writes - last_writes)) : 0);
+ rrdset_done(st);
+ }
+ }
+
+/*
+ // --------------------------------------------------------------------------
+ // space metrics
+
+ if(unlikely( d->mount_point && (d->do_space || d->do_inodes) )) {
+ do_disk_space_stats(d, d->mount_point, disk, disk, family, update_every, dt);
+ }
+*/
+ }
+
+ // --------------------------------------------------------------------------
+ // space metrics for non-block devices
+
+ struct mountinfo *mi;
+ for(mi = disk_mountinfo_root; mi ;mi = mi->next) {
+ if(unlikely(mi->flags & (MOUNTINFO_IS_DUMMY|MOUNTINFO_IS_BIND|MOUNTINFO_IS_SAME_DEV|MOUNTINFO_NO_STAT|MOUNTINFO_NO_SIZE)))
+ continue;
/*
- switch(major) {
- case 9: // MDs
- case 43: // network block
- case 144: // nfs
- case 145: // nfs
- case 146: // nfs
- case 199: // veritas
- case 201: // veritas
- case 251: // dm
- case 253: // virtio
- def_enabled = enable_new_disks;
- break;
-
- case 48: // RAID
- case 49: // RAID
- case 50: // RAID
- case 51: // RAID
- case 52: // RAID
- case 53: // RAID
- case 54: // RAID
- case 55: // RAID
- case 112: // RAID
- case 136: // RAID
- case 137: // RAID
- case 138: // RAID
- case 139: // RAID
- case 140: // RAID
- case 141: // RAID
- case 142: // RAID
- case 143: // RAID
- case 179: // MMC
- case 180: // USB
- if(minor % 8) def_enabled = 0; // partitions
- else def_enabled = enable_new_disks;
- break;
-
- case 8: // scsi disks
- case 65: // scsi disks
- case 66: // scsi disks
- case 67: // scsi disks
- case 68: // scsi disks
- case 69: // scsi disks
- case 70: // scsi disks
- case 71: // scsi disks
- case 72: // scsi disks
- case 73: // scsi disks
- case 74: // scsi disks
- case 75: // scsi disks
- case 76: // scsi disks
- case 77: // scsi disks
- case 78: // scsi disks
- case 79: // scsi disks
- case 80: // i2o
- case 81: // i2o
- case 82: // i2o
- case 83: // i2o
- case 84: // i2o
- case 85: // i2o
- case 86: // i2o
- case 87: // i2o
- case 101: // hyperdisk
- case 102: // compressed
- case 104: // scsi
- case 105: // scsi
- case 106: // scsi
- case 107: // scsi
- case 108: // scsi
- case 109: // scsi
- case 110: // scsi
- case 111: // scsi
- case 114: // bios raid
- case 116: // ram board
- case 128: // scsi
- case 129: // scsi
- case 130: // scsi
- case 131: // scsi
- case 132: // scsi
- case 133: // scsi
- case 134: // scsi
- case 135: // scsi
- case 153: // raid
- case 202: // xen
- case 254: // virtio3
- case 256: // flash
- case 257: // flash
- case 259: // nvme0n1 issue #119
- if(minor % 16) def_enabled = 0; // partitions
- else def_enabled = enable_new_disks;
- break;
-
- case 160: // raid
- case 161: // raid
- if(minor % 32) def_enabled = 0; // partitions
- else def_enabled = enable_new_disks;
- break;
-
- case 3: // ide
- case 13: // 8bit ide
- case 22: // ide
- case 33: // ide
- case 34: // ide
- case 56: // ide
- case 57: // ide
- case 88: // ide
- case 89: // ide
- case 90: // ide
- case 91: // ide
- if(minor % 64) def_enabled = 0; // partitions
- else def_enabled = enable_new_disks;
- break;
-
- case 252: // zram
- def_enabled = 0;
- break;
-
- default:
- def_enabled = 0;
- break;
- }
+ // skip the ones with block devices
+ int skip = 0;
+ struct disk *d;
+ for(d = disk_root; d ;d = d->next) {
+ if(unlikely(d->mount_point && mi->mount_point_hash == d->mount_point_hash && strcmp(mi->mount_point, d->mount_point))) {
+ skip = 1;
+ break;
+ }
+ }
+
+ if(unlikely(skip))
+ continue;
+
+ // fprintf(stderr, "Will process mount point '%s', source '%s', filesystem '%s'\n", mi->mount_point, mi->mount_source, mi->filesystem);
*/
- int ddo_io = do_io, ddo_ops = do_ops, ddo_mops = do_mops, ddo_iotime = do_iotime, ddo_qops = do_qops, ddo_util = do_util, ddo_backlog = do_backlog;
-
- // check which charts are enabled for this disk
- {
- char var_name[4096 + 1];
- snprintf(var_name, 4096, "plugin:proc:/proc/diskstats:%s", disk);
- def_enabled = config_get_boolean_ondemand(var_name, "enabled", def_enabled);
- if(def_enabled == CONFIG_ONDEMAND_NO) continue;
- if(def_enabled == CONFIG_ONDEMAND_ONDEMAND && !reads && !writes) continue;
-
-
- ddo_io = config_get_boolean_ondemand(var_name, "bandwidth", ddo_io);
- ddo_ops = config_get_boolean_ondemand(var_name, "operations", ddo_ops);
- ddo_mops = config_get_boolean_ondemand(var_name, "merged operations", ddo_mops);
- ddo_iotime = config_get_boolean_ondemand(var_name, "i/o time", ddo_iotime);
- ddo_qops = config_get_boolean_ondemand(var_name, "queued operations", ddo_qops);
- ddo_util = config_get_boolean_ondemand(var_name, "utilization percentage", ddo_util);
- ddo_backlog = config_get_boolean_ondemand(var_name, "backlog", ddo_backlog);
-
- // by default, do not add charts that do not have values
- if(ddo_io == CONFIG_ONDEMAND_ONDEMAND && !reads && !writes) ddo_io = 0;
- if(ddo_mops == CONFIG_ONDEMAND_ONDEMAND && mreads == 0 && mwrites == 0) ddo_mops = 0;
- if(ddo_iotime == CONFIG_ONDEMAND_ONDEMAND && readms == 0 && writems == 0) ddo_iotime = 0;
- if(ddo_util == CONFIG_ONDEMAND_ONDEMAND && busy_ms == 0) ddo_util = 0;
- if(ddo_backlog == CONFIG_ONDEMAND_ONDEMAND && backlog_ms == 0) ddo_backlog = 0;
- if(ddo_qops == CONFIG_ONDEMAND_ONDEMAND && backlog_ms == 0) ddo_qops = 0;
-
- // for absolute values, we need to switch the setting to 'yes'
- // to allow it refresh from now on
- if(ddo_qops == CONFIG_ONDEMAND_ONDEMAND) config_set(var_name, "queued operations", "yes");
- }
-
- RRDSET *st;
-
- // --------------------------------------------------------------------
-
- int sector_size = 512;
- if(ddo_io) {
- st = rrdset_find_bytype(RRD_TYPE_DISK, disk);
- if(!st) {
- char tf[FILENAME_MAX + 1], *t;
- char ssfilename[FILENAME_MAX + 1];
-
- strncpy(tf, disk, FILENAME_MAX);
- tf[FILENAME_MAX] = '\0';
-
- // replace all / with !
- while((t = strchr(tf, '/'))) *t = '!';
-
- snprintf(ssfilename, FILENAME_MAX, path_to_get_hw_sector_size, tf);
- FILE *fpss = fopen(ssfilename, "r");
- if(fpss) {
- char ssbuffer[1025];
- char *tmp = fgets(ssbuffer, 1024, fpss);
-
- if(tmp) {
- sector_size = atoi(tmp);
- if(sector_size <= 0) {
- error("Invalid sector size %d for device %s in %s. Assuming 512.", sector_size, disk, ssfilename);
- sector_size = 512;
- }
- }
- else error("Cannot read data for sector size for device %s from %s. Assuming 512.", disk, ssfilename);
-
- fclose(fpss);
- }
- else error("Cannot read sector size for device %s from %s. Assuming 512.", disk, ssfilename);
-
- st = rrdset_create(RRD_TYPE_DISK, disk, NULL, disk, "disk.io", "Disk I/O Bandwidth", "kilobytes/s", 2000, update_every, RRDSET_TYPE_AREA);
-
- rrddim_add(st, "reads", NULL, sector_size, 1024, RRDDIM_INCREMENTAL);
- rrddim_add(st, "writes", NULL, sector_size * -1, 1024, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- last_readsectors = rrddim_set(st, "reads", readsectors);
- last_writesectors = rrddim_set(st, "writes", writesectors);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_ops) {
- st = rrdset_find_bytype("disk_ops", disk);
- if(!st) {
- st = rrdset_create("disk_ops", disk, NULL, disk, "disk.ops", "Disk Completed I/O Operations", "operations/s", 2001, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
- rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- last_reads = rrddim_set(st, "reads", reads);
- last_writes = rrddim_set(st, "writes", writes);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_qops) {
- st = rrdset_find_bytype("disk_qops", disk);
- if(!st) {
- st = rrdset_create("disk_qops", disk, NULL, disk, "disk.qops", "Disk Current I/O Operations", "operations", 2002, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "operations", NULL, 1, 1, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "operations", queued_ios);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_backlog) {
- st = rrdset_find_bytype("disk_backlog", disk);
- if(!st) {
- st = rrdset_create("disk_backlog", disk, NULL, disk, "disk.backlog", "Disk Backlog", "backlog (ms)", 2003, update_every, RRDSET_TYPE_AREA);
- st->isdetail = 1;
-
- rrddim_add(st, "backlog", NULL, 1, 10, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "backlog", backlog_ms);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_util) {
- st = rrdset_find_bytype("disk_util", disk);
- if(!st) {
- st = rrdset_create("disk_util", disk, NULL, disk, "disk.util", "Disk Utilization Time", "% of time working", 2004, update_every, RRDSET_TYPE_AREA);
- st->isdetail = 1;
-
- rrddim_add(st, "utilization", NULL, 1, 10, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- last_busy_ms = rrddim_set(st, "utilization", busy_ms);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_mops) {
- st = rrdset_find_bytype("disk_mops", disk);
- if(!st) {
- st = rrdset_create("disk_mops", disk, NULL, disk, "disk.mops", "Disk Merged Operations", "merged operations/s", 2021, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
- rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "reads", mreads);
- rrddim_set(st, "writes", mwrites);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- if(ddo_iotime) {
- st = rrdset_find_bytype("disk_iotime", disk);
- if(!st) {
- st = rrdset_create("disk_iotime", disk, NULL, disk, "disk.iotime", "Disk Total I/O Time", "milliseconds/s", 2022, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_INCREMENTAL);
- rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_INCREMENTAL);
- }
- else rrdset_next_usec(st, dt);
-
- last_readms = rrddim_set(st, "reads", readms);
- last_writems = rrddim_set(st, "writes", writems);
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
- // calculate differential charts
- // only if this is not the first time we run
-
- if(dt) {
- if(ddo_iotime && ddo_ops) {
- st = rrdset_find_bytype("disk_await", disk);
- if(!st) {
- st = rrdset_create("disk_await", disk, NULL, disk, "disk.await", "Average Completed I/O Operation Time", "ms per operation", 2005, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "reads", NULL, 1, 1, RRDDIM_ABSOLUTE);
- rrddim_add(st, "writes", NULL, -1, 1, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "reads", (reads - last_reads) ? (readms - last_readms) / (reads - last_reads) : 0);
- rrddim_set(st, "writes", (writes - last_writes) ? (writems - last_writems) / (writes - last_writes) : 0);
- rrdset_done(st);
- }
-
- if(ddo_io && ddo_ops) {
- st = rrdset_find_bytype("disk_avgsz", disk);
- if(!st) {
- st = rrdset_create("disk_avgsz", disk, NULL, disk, "disk.avgsz", "Average Completed I/O Operation Bandwidth", "kilobytes per operation", 2006, update_every, RRDSET_TYPE_AREA);
- st->isdetail = 1;
-
- rrddim_add(st, "reads", NULL, sector_size, 1024, RRDDIM_ABSOLUTE);
- rrddim_add(st, "writes", NULL, -sector_size, 1024, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "reads", (reads - last_reads) ? (readsectors - last_readsectors) / (reads - last_reads) : 0);
- rrddim_set(st, "writes", (writes - last_writes) ? (writesectors - last_writesectors) / (writes - last_writes) : 0);
- rrdset_done(st);
- }
-
- if(ddo_util && ddo_ops) {
- st = rrdset_find_bytype("disk_svctm", disk);
- if(!st) {
- st = rrdset_create("disk_svctm", disk, NULL, disk, "disk.svctm", "Average Service Time", "ms per operation", 2007, update_every, RRDSET_TYPE_LINE);
- st->isdetail = 1;
-
- rrddim_add(st, "svctm", NULL, 1, 1, RRDDIM_ABSOLUTE);
- }
- else rrdset_next_usec(st, dt);
-
- rrddim_set(st, "svctm", ((reads - last_reads) + (writes - last_writes)) ? (busy_ms - last_busy_ms) / ((reads - last_reads) + (writes - last_writes)) : 0);
- rrdset_done(st);
- }
- }
- }
-
- return 0;
+ do_disk_space_stats(NULL, mi->mount_point, mi->mount_source, mi->persistent_id, mi->mount_point , update_every, dt);
+ }
+
+ return 0;
}
projects / netdata.git / blobdiff