vendor: update github.com/VictoriaMetrics/metrics from v1.14.0 to v1.15.0

The v1.15.0 exports the following additional metrics:

    process_io_read_bytes_total - the number of bytes read via io syscalls such as read and pread
    process_io_written_bytes_total - the number of bytes written via io syscalls such as write and pwrite
    process_io_read_syscalls_total - the number of read syscalls such as read and pread
    process_io_write_syscalls_total - the number of write syscalls such as write and pwrite
    process_io_storage_read_bytes_total - the number of bytes read from storage layer
    process_io_storage_written_bytes_total - the number of bytes written to storage layer

These metrics can be used for monitoring process io

docs/CHANGELOG.md

@@ -3,6 +3,14 @@
 # tip
 
 * FEATURE: vmagent: add `scrape_align_interval` config option, which can be used for aligning scrapes to the beginning of the configured interval. See [these docs](https://victoriametrics.github.io/vmagent.html#troubleshooting) for details.
+* FEATURE: expose io-related metrics at `/metrics` page for every VictoriaMetrics component:
+  * `process_io_read_bytes_total` - the number of bytes read via io syscalls such as read and pread
+  * `process_io_written_bytes_total` - the number of bytes written via io syscalls such as write and pwrite
+  * `process_io_read_syscalls_total` - the number of read syscalls such as read and pread
+  * `process_io_write_syscalls_total` - the number of write syscalls such as write and pwrite
+  * `process_io_storage_read_bytes_total` - the number of bytes read from storage layer
+  * `process_io_storage_written_bytes_total` - the number of bytes written to storage layer
+
 
 * BUGFIX: vmagent: properly perform graceful shutdown on `SIGINT` and `SIGTERM` signals. The graceful shutdown has been broken in `v1.54.0`. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1065
 * BUGFIX: reduce the probability of `duplicate time series` errors when querying Kubernetes metrics.

go.mod

@@ -8,7 +8,7 @@ require (
 	// Do not use the original github.com/valyala/fasthttp because of issues
 	// like https://github.com/valyala/fasthttp/commit/996610f021ff45fdc98c2ce7884d5fa4e7f9199b
 	github.com/VictoriaMetrics/fasthttp v1.0.12
-	github.com/VictoriaMetrics/metrics v1.14.0
+	github.com/VictoriaMetrics/metrics v1.15.0
 	github.com/VictoriaMetrics/metricsql v0.10.1
 	github.com/aws/aws-sdk-go v1.37.12
 	github.com/cespare/xxhash/v2 v2.1.1

go.sum

@@ -85,8 +85,8 @@ github.com/VictoriaMetrics/fastcache v1.5.7/go.mod h1:ptDBkNMQI4RtmVo8VS/XwRY6Ro
 github.com/VictoriaMetrics/fasthttp v1.0.12 h1:Ag0E119yrH4BTxVyjKD9TeiSImtG9bUcg/stItLJhSE=
 github.com/VictoriaMetrics/fasthttp v1.0.12/go.mod h1:3SeUL4zwB/p/a9aEeRc6gdlbrtNHXBJR6N376EgiSHU=
 github.com/VictoriaMetrics/metrics v1.12.2/go.mod h1:Z1tSfPfngDn12bTfZSCqArT3OPY3u88J12hSoOhuiRE=
-github.com/VictoriaMetrics/metrics v1.14.0 h1:yvyEVo7cPN2Hv+Hrm1zPTA1f/squmEZTq6xtPH/8F64=
-github.com/VictoriaMetrics/metrics v1.14.0/go.mod h1:Z1tSfPfngDn12bTfZSCqArT3OPY3u88J12hSoOhuiRE=
+github.com/VictoriaMetrics/metrics v1.15.0 h1:HGmGaILioC4vNk6UhkcwLIaDlg5y4MVganq1verl5js=
+github.com/VictoriaMetrics/metrics v1.15.0/go.mod h1:Z1tSfPfngDn12bTfZSCqArT3OPY3u88J12hSoOhuiRE=
 github.com/VictoriaMetrics/metricsql v0.10.1 h1:wLl/YbMmBGFPyLKMfqNLC333iygibosSM5iSvlH2B4A=
 github.com/VictoriaMetrics/metricsql v0.10.1/go.mod h1:ylO7YITho/Iw6P71oEaGyHbO94bGoGtzWfLGqFhMIg8=
 github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdcM=

vendor/github.com/VictoriaMetrics/metrics/README.md

@@ -93,7 +93,7 @@ exposed from your application.
 #### How to implement [CounterVec](https://godoc.org/github.com/prometheus/client_golang/prometheus#CounterVec) in `metrics`?
 
 Just use [GetOrCreateCounter](http://godoc.org/github.com/VictoriaMetrics/metrics#GetOrCreateCounter)
-instead of `CounterVec.With`. See [this example](https://godoc.org/github.com/VictoriaMetrics/metrics#example-Counter--Vec) for details.
+instead of `CounterVec.With`. See [this example](https://pkg.go.dev/github.com/VictoriaMetrics/metrics#example-Counter-Vec) for details.
 
 
 #### Why [Histogram](http://godoc.org/github.com/VictoriaMetrics/metrics#Histogram) buckets contain `vmrange` labels instead of `le` labels like in Prometheus histograms?

vendor/github.com/VictoriaMetrics/metrics/process_metrics_linux.go

@@ -12,8 +12,6 @@ import (
 	"time"
 )
 
-const statFilepath = "/proc/self/stat"
-
 // See https://github.com/prometheus/procfs/blob/a4ac0826abceb44c40fc71daed2b301db498b93e/proc_stat.go#L40 .
 const userHZ = 100
 
@@ -44,6 +42,7 @@ type procStat struct {
 }
 
 func writeProcessMetrics(w io.Writer) {
+	statFilepath := "/proc/self/stat"
 	data, err := ioutil.ReadFile(statFilepath)
 	if err != nil {
 		log.Printf("ERROR: cannot open %s: %s", statFilepath, err)
@@ -68,7 +67,8 @@ func writeProcessMetrics(w io.Writer) {
 	}
 
 	// It is expensive obtaining `process_open_fds` when big number of file descriptors is opened,
-	// don't do it here.
+	// so don't do it here.
+	// See writeFDMetrics instead.
 
 	utime := float64(p.Utime) / userHZ
 	stime := float64(p.Stime) / userHZ
@@ -81,6 +81,54 @@ func writeProcessMetrics(w io.Writer) {
 	fmt.Fprintf(w, "process_resident_memory_bytes %d\n", p.Rss*4096)
 	fmt.Fprintf(w, "process_start_time_seconds %d\n", startTimeSeconds)
 	fmt.Fprintf(w, "process_virtual_memory_bytes %d\n", p.Vsize)
+
+	writeIOMetrics(w)
+}
+
+func writeIOMetrics(w io.Writer) {
+	ioFilepath := "/proc/self/io"
+	data, err := ioutil.ReadFile(ioFilepath)
+	if err != nil {
+		log.Printf("ERROR: cannot open %q: %s", ioFilepath, err)
+	}
+	getInt := func(s string) int64 {
+		n := strings.IndexByte(s, ' ')
+		if n < 0 {
+			log.Printf("ERROR: cannot find whitespace in %q at %q", s, ioFilepath)
+			return 0
+		}
+		v, err := strconv.ParseInt(s[n+1:], 10, 64)
+		if err != nil {
+			log.Printf("ERROR: cannot parse %q at %q: %s", s, ioFilepath, err)
+			return 0
+		}
+		return v
+	}
+	var rchar, wchar, syscr, syscw, readBytes, writeBytes int64
+	lines := strings.Split(string(data), "\n")
+	for _, s := range lines {
+		s = strings.TrimSpace(s)
+		switch {
+		case strings.HasPrefix(s, "rchar: "):
+			rchar = getInt(s)
+		case strings.HasPrefix(s, "wchar: "):
+			wchar = getInt(s)
+		case strings.HasPrefix(s, "syscr: "):
+			syscr = getInt(s)
+		case strings.HasPrefix(s, "syscw: "):
+			syscw = getInt(s)
+		case strings.HasPrefix(s, "read_bytes: "):
+			readBytes = getInt(s)
+		case strings.HasPrefix(s, "write_bytes: "):
+			writeBytes = getInt(s)
+		}
+	}
+	fmt.Fprintf(w, "process_io_read_bytes_total %d\n", rchar)
+	fmt.Fprintf(w, "process_io_written_bytes_total %d\n", wchar)
+	fmt.Fprintf(w, "process_io_read_syscalls_total %d\n", syscr)
+	fmt.Fprintf(w, "process_io_write_syscalls_total %d\n", syscw)
+	fmt.Fprintf(w, "process_io_storage_read_bytes_total %d\n", readBytes)
+	fmt.Fprintf(w, "process_io_storage_written_bytes_total %d\n", writeBytes)
 }
 
 var startTimeSeconds = time.Now().Unix()

vendor/modules.txt

@@ -14,7 +14,7 @@ github.com/VictoriaMetrics/fastcache
 github.com/VictoriaMetrics/fasthttp
 github.com/VictoriaMetrics/fasthttp/fasthttputil
 github.com/VictoriaMetrics/fasthttp/stackless
-# github.com/VictoriaMetrics/metrics v1.14.0
+# github.com/VictoriaMetrics/metrics v1.15.0
 github.com/VictoriaMetrics/metrics
 # github.com/VictoriaMetrics/metricsql v0.10.1
 github.com/VictoriaMetrics/metricsql