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-rw-r--r--src/freebsd_devstat.c662
1 files changed, 662 insertions, 0 deletions
diff --git a/src/freebsd_devstat.c b/src/freebsd_devstat.c
new file mode 100644
index 000000000..5b0687d5b
--- /dev/null
+++ b/src/freebsd_devstat.c
@@ -0,0 +1,662 @@
+#include "common.h"
+
+#include <sys/devicestat.h>
+
+struct disk {
+ char *name;
+ uint32_t hash;
+ size_t len;
+
+ // flags
+ int configured;
+ int enabled;
+ int updated;
+
+ int do_io;
+ int do_ops;
+ int do_qops;
+ int do_util;
+ int do_iotime;
+ int do_await;
+ int do_avagsz;
+ int do_svctm;
+
+
+ // data for differential charts
+
+ struct prev_dstat {
+ collected_number bytes_read;
+ collected_number bytes_write;
+ collected_number operations_read;
+ collected_number operations_write;
+ collected_number duration_read_ms;
+ collected_number duration_write_ms;
+ collected_number busy_time_ms;
+ } prev_dstat;
+
+ // charts and dimensions
+
+ RRDSET *st_io;
+ RRDDIM *rd_io_in;
+ RRDDIM *rd_io_out;
+
+ RRDSET *st_ops;
+ RRDDIM *rd_ops_in;
+ RRDDIM *rd_ops_out;
+
+ RRDSET *st_qops;
+ RRDDIM *rd_qops;
+
+ RRDSET *st_util;
+ RRDDIM *rd_util;
+
+ RRDSET *st_iotime;
+ RRDDIM *rd_iotime_in;
+ RRDDIM *rd_iotime_out;
+
+ RRDSET *st_await;
+ RRDDIM *rd_await_in;
+ RRDDIM *rd_await_out;
+
+ RRDSET *st_avagsz;
+ RRDDIM *rd_avagsz_in;
+ RRDDIM *rd_avagsz_out;
+
+ RRDSET *st_svctm;
+ RRDDIM *rd_svctm;
+
+ struct disk *next;
+};
+
+static struct disk *disks_root = NULL, *disks_last_used = NULL;
+
+static size_t disks_added = 0, disks_found = 0;
+
+static void disk_free(struct disk *dm) {
+ if (likely(dm->st_io))
+ rrdset_is_obsolete(dm->st_io);
+ if (likely(dm->st_ops))
+ rrdset_is_obsolete(dm->st_ops);
+ if (likely(dm->st_qops))
+ rrdset_is_obsolete(dm->st_qops);
+ if (likely(dm->st_util))
+ rrdset_is_obsolete(dm->st_util);
+ if (likely(dm->st_iotime))
+ rrdset_is_obsolete(dm->st_iotime);
+ if (likely(dm->st_await))
+ rrdset_is_obsolete(dm->st_await);
+ if (likely(dm->st_avagsz))
+ rrdset_is_obsolete(dm->st_avagsz);
+ if (likely(dm->st_svctm))
+ rrdset_is_obsolete(dm->st_svctm);
+
+ disks_added--;
+ freez(dm->name);
+ freez(dm);
+}
+
+static void disks_cleanup() {
+ if (likely(disks_found == disks_added)) return;
+
+ struct disk *dm = disks_root, *last = NULL;
+ while(dm) {
+ if (unlikely(!dm->updated)) {
+ // info("Removing disk '%s', linked after '%s'", dm->name, last?last->name:"ROOT");
+
+ if (disks_last_used == dm)
+ disks_last_used = last;
+
+ struct disk *t = dm;
+
+ if (dm == disks_root || !last)
+ disks_root = dm = dm->next;
+
+ else
+ last->next = dm = dm->next;
+
+ t->next = NULL;
+ disk_free(t);
+ }
+ else {
+ last = dm;
+ dm->updated = 0;
+ dm = dm->next;
+ }
+ }
+}
+
+static struct disk *get_disk(const char *name) {
+ struct disk *dm;
+
+ uint32_t hash = simple_hash(name);
+
+ // search it, from the last position to the end
+ for(dm = disks_last_used ; dm ; dm = dm->next) {
+ if (unlikely(hash == dm->hash && !strcmp(name, dm->name))) {
+ disks_last_used = dm->next;
+ return dm;
+ }
+ }
+
+ // search it from the beginning to the last position we used
+ for(dm = disks_root ; dm != disks_last_used ; dm = dm->next) {
+ if (unlikely(hash == dm->hash && !strcmp(name, dm->name))) {
+ disks_last_used = dm->next;
+ return dm;
+ }
+ }
+
+ // create a new one
+ dm = callocz(1, sizeof(struct disk));
+ dm->name = strdupz(name);
+ dm->hash = simple_hash(dm->name);
+ dm->len = strlen(dm->name);
+ disks_added++;
+
+ // link it to the end
+ if (disks_root) {
+ struct disk *e;
+ for(e = disks_root; e->next ; e = e->next) ;
+ e->next = dm;
+ }
+ else
+ disks_root = dm;
+
+ return dm;
+}
+
+// --------------------------------------------------------------------------------------------------------------------
+// kern.devstat
+
+int do_kern_devstat(int update_every, usec_t dt) {
+
+#define DELAULT_EXLUDED_DISKS ""
+#define CONFIG_SECTION_KERN_DEVSTAT "plugin:freebsd:kern.devstat"
+#define BINTIME_SCALE 5.42101086242752217003726400434970855712890625e-17 // this is 1000/2^64
+
+ static int enable_new_disks = -1;
+ static int enable_pass_devices = -1, do_system_io = -1, do_io = -1, do_ops = -1, do_qops = -1, do_util = -1,
+ do_iotime = -1, do_await = -1, do_avagsz = -1, do_svctm = -1;
+ static SIMPLE_PATTERN *excluded_disks = NULL;
+
+ if (unlikely(enable_new_disks == -1)) {
+ enable_new_disks = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT,
+ "enable new disks detected at runtime", CONFIG_BOOLEAN_AUTO);
+
+ enable_pass_devices = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT,
+ "performance metrics for pass devices", CONFIG_BOOLEAN_AUTO);
+
+ do_system_io = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "total bandwidth for all disks",
+ CONFIG_BOOLEAN_YES);
+
+ do_io = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "bandwidth for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_ops = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "operations for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_qops = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "queued operations for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_util = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "utilization percentage for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_iotime = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "i/o time for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_await = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "average completed i/o time for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_avagsz = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "average completed i/o bandwidth for all disks",
+ CONFIG_BOOLEAN_AUTO);
+ do_svctm = config_get_boolean_ondemand(CONFIG_SECTION_KERN_DEVSTAT, "average service time for all disks",
+ CONFIG_BOOLEAN_AUTO);
+
+ excluded_disks = simple_pattern_create(
+ config_get(CONFIG_SECTION_KERN_DEVSTAT, "disable by default disks matching", DELAULT_EXLUDED_DISKS)
+ , SIMPLE_PATTERN_EXACT
+ );
+ }
+
+ if (likely(do_system_io || do_io || do_ops || do_qops || do_util || do_iotime || do_await || do_avagsz || do_svctm)) {
+ static int mib_numdevs[3] = {0, 0, 0};
+ int numdevs;
+ int common_error = 0;
+
+ if (unlikely(GETSYSCTL_SIMPLE("kern.devstat.numdevs", mib_numdevs, numdevs))) {
+ common_error = 1;
+ } else {
+ static int mib_devstat[3] = {0, 0, 0};
+ static void *devstat_data = NULL;
+ static int old_numdevs = 0;
+
+ if (unlikely(numdevs != old_numdevs)) {
+ devstat_data = reallocz(devstat_data, sizeof(long) + sizeof(struct devstat) *
+ numdevs); // there is generation number before devstat structures
+ old_numdevs = numdevs;
+ }
+ if (unlikely(GETSYSCTL_WSIZE("kern.devstat.all", mib_devstat, devstat_data,
+ sizeof(long) + sizeof(struct devstat) * numdevs))) {
+ common_error = 1;
+ } else {
+ struct devstat *dstat;
+ int i;
+ collected_number total_disk_kbytes_read = 0;
+ collected_number total_disk_kbytes_write = 0;
+
+ disks_found = 0;
+
+ dstat = devstat_data + sizeof(long); // skip generation number
+
+ for (i = 0; i < numdevs; i++) {
+ if (likely(do_system_io)) {
+ if (((dstat[i].device_type & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT) || ((dstat[i].device_type & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_STORARRAY)) {
+ total_disk_kbytes_read += dstat[i].bytes[DEVSTAT_READ] / KILO_FACTOR;
+ total_disk_kbytes_write += dstat[i].bytes[DEVSTAT_WRITE] / KILO_FACTOR;
+ }
+ }
+
+ if (unlikely(!enable_pass_devices))
+ if ((dstat[i].device_type & DEVSTAT_TYPE_PASS) == DEVSTAT_TYPE_PASS)
+ continue;
+
+ if (((dstat[i].device_type & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_DIRECT) || ((dstat[i].device_type & DEVSTAT_TYPE_MASK) == DEVSTAT_TYPE_STORARRAY)) {
+ char disk[DEVSTAT_NAME_LEN + MAX_INT_DIGITS + 1];
+ struct cur_dstat {
+ collected_number duration_read_ms;
+ collected_number duration_write_ms;
+ collected_number busy_time_ms;
+ } cur_dstat;
+
+ sprintf(disk, "%s%d", dstat[i].device_name, dstat[i].unit_number);
+
+ struct disk *dm = get_disk(disk);
+ dm->updated = 1;
+ disks_found++;
+
+ if(unlikely(!dm->configured)) {
+ char var_name[4096 + 1];
+
+ // this is the first time we see this disk
+
+ // remember we configured it
+ dm->configured = 1;
+
+ dm->enabled = enable_new_disks;
+
+ if (likely(dm->enabled))
+ dm->enabled = !simple_pattern_matches(excluded_disks, disk);
+
+ snprintfz(var_name, 4096, "%s:%s", CONFIG_SECTION_KERN_DEVSTAT, disk);
+ dm->enabled = config_get_boolean_ondemand(var_name, "enabled", dm->enabled);
+
+ dm->do_io = config_get_boolean_ondemand(var_name, "bandwidth", do_io);
+ dm->do_ops = config_get_boolean_ondemand(var_name, "operations", do_ops);
+ dm->do_qops = config_get_boolean_ondemand(var_name, "queued operations", do_qops);
+ dm->do_util = config_get_boolean_ondemand(var_name, "utilization percentage", do_util);
+ dm->do_iotime = config_get_boolean_ondemand(var_name, "i/o time", do_iotime);
+ dm->do_await = config_get_boolean_ondemand(var_name, "average completed i/o time",
+ do_await);
+ dm->do_avagsz = config_get_boolean_ondemand(var_name, "average completed i/o bandwidth",
+ do_avagsz);
+ dm->do_svctm = config_get_boolean_ondemand(var_name, "average service time", do_svctm);
+
+ // initialise data for differential charts
+
+ dm->prev_dstat.bytes_read = dstat[i].bytes[DEVSTAT_READ];
+ dm->prev_dstat.bytes_write = dstat[i].bytes[DEVSTAT_WRITE];
+ dm->prev_dstat.operations_read = dstat[i].operations[DEVSTAT_READ];
+ dm->prev_dstat.operations_write = dstat[i].operations[DEVSTAT_WRITE];
+ dm->prev_dstat.duration_read_ms = dstat[i].duration[DEVSTAT_READ].sec * 1000
+ + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
+ dm->prev_dstat.duration_write_ms = dstat[i].duration[DEVSTAT_WRITE].sec * 1000
+ + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
+ dm->prev_dstat.busy_time_ms = dstat[i].busy_time.sec * 1000
+ + dstat[i].busy_time.frac * BINTIME_SCALE;
+ }
+
+ cur_dstat.duration_read_ms = dstat[i].duration[DEVSTAT_READ].sec * 1000
+ + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
+ cur_dstat.duration_write_ms = dstat[i].duration[DEVSTAT_WRITE].sec * 1000
+ + dstat[i].duration[DEVSTAT_READ].frac * BINTIME_SCALE;
+ cur_dstat.busy_time_ms = dstat[i].busy_time.sec * 1000 + dstat[i].busy_time.frac * BINTIME_SCALE;
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_io == CONFIG_BOOLEAN_YES || (dm->do_io == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].bytes[DEVSTAT_READ] || dstat[i].bytes[DEVSTAT_WRITE]))) {
+ if (unlikely(!dm->st_io)) {
+ dm->st_io = rrdset_create_localhost("disk",
+ disk,
+ NULL,
+ disk,
+ "disk.io",
+ "Disk I/O Bandwidth",
+ "kilobytes/s",
+ 2000,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ dm->rd_io_in = rrddim_add(dm->st_io, "reads", NULL, 1, KILO_FACTOR,
+ RRD_ALGORITHM_INCREMENTAL);
+ dm->rd_io_out = rrddim_add(dm->st_io, "writes", NULL, -1, KILO_FACTOR,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(dm->st_io);
+
+ rrddim_set_by_pointer(dm->st_io, dm->rd_io_in, dstat[i].bytes[DEVSTAT_READ]);
+ rrddim_set_by_pointer(dm->st_io, dm->rd_io_out, dstat[i].bytes[DEVSTAT_WRITE]);
+ rrdset_done(dm->st_io);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_ops == CONFIG_BOOLEAN_YES || (dm->do_ops == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].operations[DEVSTAT_READ] || dstat[i].operations[DEVSTAT_WRITE]))) {
+ if (unlikely(!dm->st_ops)) {
+ dm->st_ops = rrdset_create_localhost("disk_ops",
+ disk,
+ NULL,
+ disk,
+ "disk.ops",
+ "Disk Completed I/O Operations",
+ "operations/s",
+ 2001,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(dm->st_ops, RRDSET_FLAG_DETAIL);
+
+ dm->rd_ops_in = rrddim_add(dm->st_ops, "reads", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ dm->rd_ops_out = rrddim_add(dm->st_ops, "writes", NULL, -1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(dm->st_ops);
+
+ rrddim_set_by_pointer(dm->st_ops, dm->rd_ops_in, dstat[i].operations[DEVSTAT_READ]);
+ rrddim_set_by_pointer(dm->st_ops, dm->rd_ops_out, dstat[i].operations[DEVSTAT_WRITE]);
+ rrdset_done(dm->st_ops);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_qops == CONFIG_BOOLEAN_YES || (dm->do_qops == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].start_count || dstat[i].end_count))) {
+ if (unlikely(!dm->st_qops)) {
+ dm->st_qops = rrdset_create_localhost("disk_qops",
+ disk,
+ NULL,
+ disk,
+ "disk.qops",
+ "Disk Current I/O Operations",
+ "operations",
+ 2002,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(dm->st_qops, RRDSET_FLAG_DETAIL);
+
+ dm->rd_qops = rrddim_add(dm->st_qops, "operations", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ } else
+ rrdset_next(dm->st_qops);
+
+ rrddim_set_by_pointer(dm->st_qops, dm->rd_qops, dstat[i].start_count - dstat[i].end_count);
+ rrdset_done(dm->st_qops);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_util == CONFIG_BOOLEAN_YES || (dm->do_util == CONFIG_BOOLEAN_AUTO &&
+ cur_dstat.busy_time_ms)) {
+ if (unlikely(!dm->st_util)) {
+ dm->st_util = rrdset_create_localhost("disk_util",
+ disk,
+ NULL,
+ disk,
+ "disk.util",
+ "Disk Utilization Time",
+ "% of time working",
+ 2004,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ rrdset_flag_set(dm->st_util, RRDSET_FLAG_DETAIL);
+
+ dm->rd_util = rrddim_add(dm->st_util, "utilization", NULL, 1, 10,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(dm->st_util);
+
+ rrddim_set_by_pointer(dm->st_util, dm->rd_util, cur_dstat.busy_time_ms);
+ rrdset_done(dm->st_util);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_iotime == CONFIG_BOOLEAN_YES || (dm->do_iotime == CONFIG_BOOLEAN_AUTO &&
+ (cur_dstat.duration_read_ms || cur_dstat.duration_write_ms))) {
+ if (unlikely(!dm->st_iotime)) {
+ dm->st_iotime = rrdset_create_localhost("disk_iotime",
+ disk,
+ NULL,
+ disk,
+ "disk.iotime",
+ "Disk Total I/O Time",
+ "milliseconds/s",
+ 2022,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(dm->st_iotime, RRDSET_FLAG_DETAIL);
+
+ dm->rd_iotime_in = rrddim_add(dm->st_iotime, "reads", NULL, 1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ dm->rd_iotime_out = rrddim_add(dm->st_iotime, "writes", NULL, -1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(dm->st_iotime);
+
+ rrddim_set_by_pointer(dm->st_iotime, dm->rd_iotime_in, cur_dstat.duration_read_ms);
+ rrddim_set_by_pointer(dm->st_iotime, dm->rd_iotime_out, cur_dstat.duration_write_ms);
+ rrdset_done(dm->st_iotime);
+ }
+
+ // --------------------------------------------------------------------
+ // calculate differential charts
+ // only if this is not the first time we run
+
+ if (likely(dt)) {
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_await == CONFIG_BOOLEAN_YES || (dm->do_await == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].operations[DEVSTAT_READ] || dstat[i].operations[DEVSTAT_WRITE]))) {
+ if (unlikely(!dm->st_await)) {
+ dm->st_await = rrdset_create_localhost("disk_await",
+ disk,
+ NULL,
+ disk,
+ "disk.await",
+ "Average Completed I/O Operation Time",
+ "ms per operation",
+ 2005,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(dm->st_await, RRDSET_FLAG_DETAIL);
+
+ dm->rd_await_in = rrddim_add(dm->st_await, "reads", NULL, 1, 1,
+ RRD_ALGORITHM_ABSOLUTE);
+ dm->rd_await_out = rrddim_add(dm->st_await, "writes", NULL, -1, 1,
+ RRD_ALGORITHM_ABSOLUTE);
+ } else
+ rrdset_next(dm->st_await);
+
+ rrddim_set_by_pointer(dm->st_await, dm->rd_await_in,
+ (dstat[i].operations[DEVSTAT_READ] -
+ dm->prev_dstat.operations_read) ?
+ (cur_dstat.duration_read_ms - dm->prev_dstat.duration_read_ms) /
+ (dstat[i].operations[DEVSTAT_READ] -
+ dm->prev_dstat.operations_read) :
+ 0);
+ rrddim_set_by_pointer(dm->st_await, dm->rd_await_out,
+ (dstat[i].operations[DEVSTAT_WRITE] -
+ dm->prev_dstat.operations_write) ?
+ (cur_dstat.duration_write_ms - dm->prev_dstat.duration_write_ms) /
+ (dstat[i].operations[DEVSTAT_WRITE] -
+ dm->prev_dstat.operations_write) :
+ 0);
+ rrdset_done(dm->st_await);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_avagsz == CONFIG_BOOLEAN_YES || (dm->do_avagsz == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].operations[DEVSTAT_READ] || dstat[i].operations[DEVSTAT_WRITE]))) {
+ if (unlikely(!dm->st_avagsz)) {
+ dm->st_avagsz = rrdset_create_localhost("disk_avgsz",
+ disk,
+ NULL,
+ disk,
+ "disk.avgsz",
+ "Average Completed I/O Operation Bandwidth",
+ "kilobytes per operation",
+ 2006,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ rrdset_flag_set(dm->st_avagsz, RRDSET_FLAG_DETAIL);
+
+ dm->rd_avagsz_in = rrddim_add(dm->st_avagsz, "reads", NULL, 1, KILO_FACTOR,
+ RRD_ALGORITHM_ABSOLUTE);
+ dm->rd_avagsz_out = rrddim_add(dm->st_avagsz, "writes", NULL, -1, KILO_FACTOR,
+ RRD_ALGORITHM_ABSOLUTE);
+ } else
+ rrdset_next(dm->st_avagsz);
+
+ rrddim_set_by_pointer(dm->st_avagsz, dm->rd_avagsz_in,
+ (dstat[i].operations[DEVSTAT_READ] -
+ dm->prev_dstat.operations_read) ?
+ (dstat[i].bytes[DEVSTAT_READ] - dm->prev_dstat.bytes_read) /
+ (dstat[i].operations[DEVSTAT_READ] -
+ dm->prev_dstat.operations_read) :
+ 0);
+ rrddim_set_by_pointer(dm->st_avagsz, dm->rd_avagsz_out,
+ (dstat[i].operations[DEVSTAT_WRITE] -
+ dm->prev_dstat.operations_write) ?
+ (dstat[i].bytes[DEVSTAT_WRITE] - dm->prev_dstat.bytes_write) /
+ (dstat[i].operations[DEVSTAT_WRITE] -
+ dm->prev_dstat.operations_write) :
+ 0);
+ rrdset_done(dm->st_avagsz);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(dm->do_svctm == CONFIG_BOOLEAN_YES || (dm->do_svctm == CONFIG_BOOLEAN_AUTO &&
+ (dstat[i].operations[DEVSTAT_READ] || dstat[i].operations[DEVSTAT_WRITE]))) {
+ if (unlikely(!dm->st_svctm)) {
+ dm->st_svctm = rrdset_create_localhost("disk_svctm",
+ disk,
+ NULL,
+ disk,
+ "disk.svctm",
+ "Average Service Time",
+ "ms per operation",
+ 2007,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(dm->st_svctm, RRDSET_FLAG_DETAIL);
+
+ dm->rd_svctm = rrddim_add(dm->st_svctm, "svctm", NULL, 1, 1,
+ RRD_ALGORITHM_ABSOLUTE);
+ } else
+ rrdset_next(dm->st_svctm);
+
+ rrddim_set_by_pointer(dm->st_svctm, dm->rd_svctm,
+ ((dstat[i].operations[DEVSTAT_READ] - dm->prev_dstat.operations_read) +
+ (dstat[i].operations[DEVSTAT_WRITE] - dm->prev_dstat.operations_write)) ?
+ (cur_dstat.busy_time_ms - dm->prev_dstat.busy_time_ms) /
+ ((dstat[i].operations[DEVSTAT_READ] - dm->prev_dstat.operations_read) +
+ (dstat[i].operations[DEVSTAT_WRITE] - dm->prev_dstat.operations_write)) :
+ 0);
+ rrdset_done(dm->st_svctm);
+ }
+
+ // --------------------------------------------------------------------
+
+ dm->prev_dstat.bytes_read = dstat[i].bytes[DEVSTAT_READ];
+ dm->prev_dstat.bytes_write = dstat[i].bytes[DEVSTAT_WRITE];
+ dm->prev_dstat.operations_read = dstat[i].operations[DEVSTAT_READ];
+ dm->prev_dstat.operations_write = dstat[i].operations[DEVSTAT_WRITE];
+ dm->prev_dstat.duration_read_ms = cur_dstat.duration_read_ms;
+ dm->prev_dstat.duration_write_ms = cur_dstat.duration_write_ms;
+ dm->prev_dstat.busy_time_ms = cur_dstat.busy_time_ms;
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ if (likely(do_system_io)) {
+ static RRDSET *st = NULL;
+ static RRDDIM *rd_in = NULL, *rd_out = NULL;
+
+ if (unlikely(!st)) {
+ st = rrdset_create_localhost("system",
+ "io",
+ NULL,
+ "disk",
+ NULL,
+ "Disk I/O",
+ "kilobytes/s",
+ 150,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ rd_in = rrddim_add(st, "in", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ rd_out = rrddim_add(st, "out", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(st);
+
+ rrddim_set_by_pointer(st, rd_in, total_disk_kbytes_read);
+ rrddim_set_by_pointer(st, rd_out, total_disk_kbytes_write);
+ rrdset_done(st);
+ }
+ }
+ }
+ if (unlikely(common_error)) {
+ do_system_io = 0;
+ error("DISABLED: system.io chart");
+ do_io = 0;
+ error("DISABLED: disk.* charts");
+ do_ops = 0;
+ error("DISABLED: disk_ops.* charts");
+ do_qops = 0;
+ error("DISABLED: disk_qops.* charts");
+ do_util = 0;
+ error("DISABLED: disk_util.* charts");
+ do_iotime = 0;
+ error("DISABLED: disk_iotime.* charts");
+ do_await = 0;
+ error("DISABLED: disk_await.* charts");
+ do_avagsz = 0;
+ error("DISABLED: disk_avgsz.* charts");
+ do_svctm = 0;
+ error("DISABLED: disk_svctm.* charts");
+ error("DISABLED: kern.devstat module");
+ return 1;
+ }
+ } else {
+ error("DISABLED: kern.devstat module");
+ return 1;
+ }
+
+ disks_cleanup();
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 01:36:43 +0000