mirror of
https://github.com/ferdzo/fs.git
synced 2026-04-05 08:56:26 +00:00
Updated metrics
This commit is contained in:
Andrej Mickov
@@ -2,12 +2,14 @@ package metrics
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import (
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"fmt"
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"os"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"syscall"
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"time"
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)
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@@ -17,6 +19,14 @@ var defaultBuckets = []float64{
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1, 2.5, 5, 10,
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}
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var lockBuckets = []float64{
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0.000001, 0.000005, 0.00001, 0.00005,
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0.0001, 0.0005, 0.001, 0.005, 0.01,
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0.025, 0.05, 0.1, 0.25, 0.5, 1,
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}
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var batchBuckets = []float64{1, 2, 4, 8, 16, 32, 64, 100, 128, 256, 512, 1000, 5000}
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var Default = NewRegistry()
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type histogram struct {
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@@ -57,13 +67,26 @@ func (h *histogram) snapshot() (bounds []float64, counts []uint64, sum float64,
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type Registry struct {
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startedAt time.Time
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inFlight atomic.Int64
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httpInFlight atomic.Int64
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connectionPoolActive atomic.Int64
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connectionPoolMax atomic.Int64
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connectionPoolWaits atomic.Uint64
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requestQueueLength atomic.Int64
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workerPoolActive atomic.Int64
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workerPoolSize atomic.Int64
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mu sync.Mutex
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httpRequests map[string]uint64
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httpResponseByte map[string]uint64
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httpDuration map[string]*histogram
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httpRequestsRoute map[string]uint64
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httpResponseBytesRoute map[string]uint64
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httpDurationRoute map[string]*histogram
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httpRequestsOp map[string]uint64
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httpDurationOp map[string]*histogram
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httpInFlightOp map[string]int64
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authRequests map[string]uint64
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@@ -77,6 +100,17 @@ type Registry struct {
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blobBytes map[string]uint64
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blobDuration map[string]*histogram
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lockWait map[string]*histogram
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lockHold map[string]*histogram
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cacheHits map[string]uint64
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cacheMisses map[string]uint64
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batchSize *histogram
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retries map[string]uint64
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errors map[string]uint64
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gcRuns map[string]uint64
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gcDuration *histogram
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gcDeletedChunks uint64
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@@ -86,47 +120,136 @@ type Registry struct {
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func NewRegistry() *Registry {
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return &Registry{
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startedAt: time.Now(),
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httpRequests: make(map[string]uint64),
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httpResponseByte: make(map[string]uint64),
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httpDuration: make(map[string]*histogram),
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authRequests: make(map[string]uint64),
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serviceOps: make(map[string]uint64),
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serviceDuration: make(map[string]*histogram),
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dbTxTotal: make(map[string]uint64),
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dbTxDuration: make(map[string]*histogram),
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blobOps: make(map[string]uint64),
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blobBytes: make(map[string]uint64),
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blobDuration: make(map[string]*histogram),
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gcRuns: make(map[string]uint64),
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gcDuration: newHistogram(defaultBuckets),
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startedAt: time.Now(),
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httpRequestsRoute: make(map[string]uint64),
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httpResponseBytesRoute: make(map[string]uint64),
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httpDurationRoute: make(map[string]*histogram),
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httpRequestsOp: make(map[string]uint64),
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httpDurationOp: make(map[string]*histogram),
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httpInFlightOp: make(map[string]int64),
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authRequests: make(map[string]uint64),
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serviceOps: make(map[string]uint64),
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serviceDuration: make(map[string]*histogram),
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dbTxTotal: make(map[string]uint64),
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dbTxDuration: make(map[string]*histogram),
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blobOps: make(map[string]uint64),
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blobBytes: make(map[string]uint64),
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blobDuration: make(map[string]*histogram),
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lockWait: make(map[string]*histogram),
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lockHold: make(map[string]*histogram),
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cacheHits: make(map[string]uint64),
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cacheMisses: make(map[string]uint64),
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batchSize: newHistogram(batchBuckets),
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retries: make(map[string]uint64),
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errors: make(map[string]uint64),
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gcRuns: make(map[string]uint64),
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gcDuration: newHistogram(defaultBuckets),
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}
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}
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func NormalizeHTTPOperation(method string, isDeletePost bool) string {
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switch strings.ToUpper(strings.TrimSpace(method)) {
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case "GET":
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return "get"
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case "PUT":
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return "put"
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case "DELETE":
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return "delete"
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case "HEAD":
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return "head"
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case "POST":
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if isDeletePost {
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return "delete"
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}
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return "put"
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default:
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return "other"
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}
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}
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func statusResult(status int) string {
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if status >= 200 && status < 400 {
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return "ok"
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}
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return "error"
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}
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func normalizeRoute(route string) string {
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route = strings.TrimSpace(route)
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if route == "" {
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return "/unknown"
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}
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return route
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}
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func normalizeOp(op string) string {
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op = strings.ToLower(strings.TrimSpace(op))
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if op == "" {
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return "other"
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}
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return op
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}
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func (r *Registry) IncHTTPInFlight() {
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r.inFlight.Add(1)
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r.httpInFlight.Add(1)
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}
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func (r *Registry) DecHTTPInFlight() {
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r.inFlight.Add(-1)
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r.httpInFlight.Add(-1)
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}
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func (r *Registry) IncHTTPInFlightOp(op string) {
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r.httpInFlight.Add(1)
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op = normalizeOp(op)
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r.mu.Lock()
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r.httpInFlightOp[op]++
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r.mu.Unlock()
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}
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func (r *Registry) DecHTTPInFlightOp(op string) {
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r.httpInFlight.Add(-1)
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op = normalizeOp(op)
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r.mu.Lock()
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r.httpInFlightOp[op]--
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if r.httpInFlightOp[op] < 0 {
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r.httpInFlightOp[op] = 0
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}
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r.mu.Unlock()
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}
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func (r *Registry) ObserveHTTPRequest(method, route string, status int, d time.Duration, responseBytes int) {
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op := NormalizeHTTPOperation(method, false)
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r.ObserveHTTPRequestDetailed(method, route, op, status, d, responseBytes)
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}
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func (r *Registry) ObserveHTTPRequestDetailed(method, route, op string, status int, d time.Duration, responseBytes int) {
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route = normalizeRoute(route)
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key := method + "|" + route + "|" + strconv.Itoa(status)
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durationKey := method + "|" + route
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op = normalizeOp(op)
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result := statusResult(status)
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routeKey := method + "|" + route + "|" + strconv.Itoa(status)
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routeDurKey := method + "|" + route
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opKey := op + "|" + result
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r.mu.Lock()
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r.httpRequests[key]++
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r.httpRequestsRoute[routeKey]++
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if responseBytes > 0 {
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r.httpResponseByte[key] += uint64(responseBytes)
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r.httpResponseBytesRoute[routeKey] += uint64(responseBytes)
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}
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h := r.httpDuration[durationKey]
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if h == nil {
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h = newHistogram(defaultBuckets)
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r.httpDuration[durationKey] = h
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hRoute := r.httpDurationRoute[routeDurKey]
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if hRoute == nil {
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hRoute = newHistogram(defaultBuckets)
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r.httpDurationRoute[routeDurKey] = hRoute
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}
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h.observe(d.Seconds())
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hRoute.observe(d.Seconds())
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r.httpRequestsOp[opKey]++
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hOp := r.httpDurationOp[opKey]
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if hOp == nil {
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hOp = newHistogram(defaultBuckets)
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r.httpDurationOp[opKey] = hOp
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}
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hOp.observe(d.Seconds())
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r.mu.Unlock()
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}
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@@ -179,31 +302,166 @@ func (r *Registry) ObserveMetadataTx(txType string, d time.Duration, ok bool) {
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r.mu.Unlock()
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}
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func (r *Registry) ObserveBlob(operation string, d time.Duration, bytes int64, ok bool) {
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func (r *Registry) ObserveBlob(operation string, d time.Duration, bytes int64, ok bool, backend ...string) {
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be := "disk"
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if len(backend) > 0 {
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candidate := strings.TrimSpace(backend[0])
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if candidate != "" {
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be = strings.ToLower(candidate)
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}
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}
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result := "error"
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if ok {
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result = "ok"
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}
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key := operation + "|" + result
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op := strings.ToLower(strings.TrimSpace(operation))
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if op == "" {
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op = "unknown"
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}
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histKey := op + "|" + be + "|" + result
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opsKey := histKey
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r.mu.Lock()
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r.blobOps[key]++
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h := r.blobDuration[operation]
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r.blobOps[opsKey]++
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h := r.blobDuration[histKey]
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if h == nil {
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h = newHistogram(defaultBuckets)
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r.blobDuration[operation] = h
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r.blobDuration[histKey] = h
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}
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h.observe(d.Seconds())
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if bytes > 0 {
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switch operation {
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case "read_chunk":
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r.blobBytes["read"] += uint64(bytes)
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case "write_chunk":
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r.blobBytes["write"] += uint64(bytes)
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}
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r.blobBytes[op] += uint64(bytes)
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}
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r.mu.Unlock()
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}
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func (r *Registry) SetConnectionPoolMax(max int) {
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if max < 0 {
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max = 0
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}
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r.connectionPoolMax.Store(int64(max))
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}
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func (r *Registry) IncConnectionPoolActive() {
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r.connectionPoolActive.Add(1)
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}
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func (r *Registry) DecConnectionPoolActive() {
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r.connectionPoolActive.Add(-1)
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}
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func (r *Registry) IncConnectionPoolWait() {
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r.connectionPoolWaits.Add(1)
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}
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func (r *Registry) IncRequestQueueLength() {
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r.requestQueueLength.Add(1)
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}
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func (r *Registry) DecRequestQueueLength() {
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r.requestQueueLength.Add(-1)
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}
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func (r *Registry) SetWorkerPoolSize(size int) {
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if size < 0 {
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size = 0
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}
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r.workerPoolSize.Store(int64(size))
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}
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func (r *Registry) IncWorkerPoolActive() {
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r.workerPoolActive.Add(1)
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}
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func (r *Registry) DecWorkerPoolActive() {
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r.workerPoolActive.Add(-1)
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}
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func (r *Registry) ObserveLockWait(lockName string, d time.Duration) {
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lockName = strings.TrimSpace(lockName)
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if lockName == "" {
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lockName = "unknown"
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}
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r.mu.Lock()
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h := r.lockWait[lockName]
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if h == nil {
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h = newHistogram(lockBuckets)
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r.lockWait[lockName] = h
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}
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h.observe(d.Seconds())
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r.mu.Unlock()
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}
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func (r *Registry) ObserveLockHold(lockName string, d time.Duration) {
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lockName = strings.TrimSpace(lockName)
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if lockName == "" {
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lockName = "unknown"
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}
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r.mu.Lock()
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h := r.lockHold[lockName]
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if h == nil {
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h = newHistogram(lockBuckets)
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r.lockHold[lockName] = h
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}
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h.observe(d.Seconds())
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r.mu.Unlock()
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}
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func (r *Registry) ObserveCacheHit(cache string) {
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cache = strings.TrimSpace(cache)
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if cache == "" {
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cache = "unknown"
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}
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r.mu.Lock()
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r.cacheHits[cache]++
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r.mu.Unlock()
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}
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func (r *Registry) ObserveCacheMiss(cache string) {
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cache = strings.TrimSpace(cache)
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if cache == "" {
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cache = "unknown"
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}
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r.mu.Lock()
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r.cacheMisses[cache]++
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r.mu.Unlock()
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}
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func (r *Registry) ObserveBatchSize(size int) {
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if size < 0 {
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size = 0
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}
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r.mu.Lock()
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r.batchSize.observe(float64(size))
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r.mu.Unlock()
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}
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func (r *Registry) ObserveRetry(op, reason string) {
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op = normalizeOp(op)
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reason = strings.TrimSpace(reason)
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if reason == "" {
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reason = "unknown"
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}
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key := op + "|" + reason
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r.mu.Lock()
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r.retries[key]++
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r.mu.Unlock()
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}
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func (r *Registry) ObserveError(op, reason string) {
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op = normalizeOp(op)
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reason = strings.TrimSpace(reason)
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if reason == "" {
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reason = "unknown"
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}
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key := op + "|" + reason
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r.mu.Lock()
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r.errors[key]++
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r.mu.Unlock()
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}
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func (r *Registry) ObserveGC(d time.Duration, deletedChunks, deleteErrors, cleanedUploads int, ok bool) {
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result := "error"
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if ok {
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@@ -230,9 +488,12 @@ func (r *Registry) RenderPrometheus() string {
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runtime.ReadMemStats(&mem)
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r.mu.Lock()
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httpReq := copyCounterMap(r.httpRequests)
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httpBytes := copyCounterMap(r.httpResponseByte)
|
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httpDur := copyHistogramMap(r.httpDuration)
|
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httpReqRoute := copyCounterMap(r.httpRequestsRoute)
|
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httpRespRoute := copyCounterMap(r.httpResponseBytesRoute)
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httpDurRoute := copyHistogramMap(r.httpDurationRoute)
|
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httpReqOp := copyCounterMap(r.httpRequestsOp)
|
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httpDurOp := copyHistogramMap(r.httpDurationOp)
|
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httpInFlightOp := copyIntGaugeMap(r.httpInFlightOp)
|
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authReq := copyCounterMap(r.authRequests)
|
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serviceOps := copyCounterMap(r.serviceOps)
|
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serviceDur := copyHistogramMap(r.serviceDuration)
|
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@@ -241,6 +502,13 @@ func (r *Registry) RenderPrometheus() string {
|
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blobOps := copyCounterMap(r.blobOps)
|
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blobBytes := copyCounterMap(r.blobBytes)
|
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blobDur := copyHistogramMap(r.blobDuration)
|
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lockWait := copyHistogramMap(r.lockWait)
|
||||
lockHold := copyHistogramMap(r.lockHold)
|
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cacheHits := copyCounterMap(r.cacheHits)
|
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cacheMisses := copyCounterMap(r.cacheMisses)
|
||||
batchBounds, batchCounts, batchSum, batchCount := r.batchSize.snapshot()
|
||||
retries := copyCounterMap(r.retries)
|
||||
errorsTotal := copyCounterMap(r.errors)
|
||||
gcRuns := copyCounterMap(r.gcRuns)
|
||||
gcDurBounds, gcDurCounts, gcDurSum, gcDurCount := r.gcDuration.snapshot()
|
||||
gcDeletedChunks := r.gcDeletedChunks
|
||||
@@ -248,12 +516,27 @@ func (r *Registry) RenderPrometheus() string {
|
||||
gcCleanedUploads := r.gcCleanedUpload
|
||||
r.mu.Unlock()
|
||||
|
||||
connectionActive := float64(r.connectionPoolActive.Load())
|
||||
connectionMax := float64(r.connectionPoolMax.Load())
|
||||
connectionWaits := r.connectionPoolWaits.Load()
|
||||
queueLength := float64(r.requestQueueLength.Load())
|
||||
workerActive := float64(r.workerPoolActive.Load())
|
||||
workerSize := float64(r.workerPoolSize.Load())
|
||||
|
||||
openFDs, hasOpenFDs := readOpenFDs()
|
||||
resident, hasResident := readResidentMemoryBytes()
|
||||
cpuSeconds, hasCPU := readProcessCPUSeconds()
|
||||
|
||||
var b strings.Builder
|
||||
|
||||
writeGauge(&b, "fs_http_inflight_requests", "Current in-flight HTTP requests.", float64(r.inFlight.Load()))
|
||||
writeCounterVecKV(&b, "fs_http_requests_total", "Total HTTP requests handled.", httpReq, []string{"method", "route", "status"})
|
||||
writeCounterVecKV(&b, "fs_http_response_bytes_total", "Total HTTP response bytes written.", httpBytes, []string{"method", "route", "status"})
|
||||
writeHistogramVecKV(&b, "fs_http_request_duration_seconds", "HTTP request latency.", httpDur, []string{"method", "route"})
|
||||
httpInFlightOp["all"] = r.httpInFlight.Load()
|
||||
writeGaugeVecFromInt64(&b, "fs_http_inflight_requests", "Current in-flight HTTP requests by operation.", httpInFlightOp, "op")
|
||||
writeCounterVecKV(&b, "fs_http_requests_total", "Total HTTP requests by operation and result.", httpReqOp, []string{"op", "result"})
|
||||
writeHistogramVecKV(&b, "fs_http_request_duration_seconds", "HTTP request latency by operation and result.", httpDurOp, []string{"op", "result"})
|
||||
|
||||
writeCounterVecKV(&b, "fs_http_requests_by_route_total", "Total HTTP requests by method/route/status.", httpReqRoute, []string{"method", "route", "status"})
|
||||
writeCounterVecKV(&b, "fs_http_response_bytes_total", "Total HTTP response bytes written.", httpRespRoute, []string{"method", "route", "status"})
|
||||
writeHistogramVecKV(&b, "fs_http_request_duration_by_route_seconds", "HTTP request latency by method/route.", httpDurRoute, []string{"method", "route"})
|
||||
|
||||
writeCounterVecKV(&b, "fs_auth_requests_total", "Authentication attempts by result.", authReq, []string{"result", "auth_type", "reason"})
|
||||
|
||||
@@ -263,9 +546,28 @@ func (r *Registry) RenderPrometheus() string {
|
||||
writeCounterVecKV(&b, "fs_metadata_tx_total", "Metadata transaction calls.", dbTx, []string{"type", "result"})
|
||||
writeHistogramVecKV(&b, "fs_metadata_tx_duration_seconds", "Metadata transaction latency.", dbTxDur, []string{"type"})
|
||||
|
||||
writeCounterVecKV(&b, "fs_blob_operations_total", "Blob store operations.", blobOps, []string{"operation", "result"})
|
||||
writeCounterVecKV(&b, "fs_blob_bytes_total", "Blob bytes processed.", blobBytes, []string{"direction"})
|
||||
writeHistogramVecKV(&b, "fs_blob_operation_duration_seconds", "Blob operation latency.", blobDur, []string{"operation"})
|
||||
writeHistogramVecKV(&b, "fs_blob_operation_duration_seconds", "Blob backend operation latency.", blobDur, []string{"op", "backend", "result"})
|
||||
writeCounterVecKV(&b, "fs_blob_operations_total", "Blob store operations.", blobOps, []string{"op", "backend", "result"})
|
||||
writeCounterVecKV(&b, "fs_blob_bytes_total", "Blob bytes processed by operation.", blobBytes, []string{"op"})
|
||||
|
||||
writeGauge(&b, "fs_connection_pool_active", "Active pooled connections.", connectionActive)
|
||||
writeGauge(&b, "fs_connection_pool_max", "Maximum pooled connections.", connectionMax)
|
||||
writeCounter(&b, "fs_connection_pool_waits_total", "Number of waits due to pool saturation.", connectionWaits)
|
||||
|
||||
writeGauge(&b, "fs_request_queue_length", "Requests waiting for an execution slot.", queueLength)
|
||||
writeGauge(&b, "fs_worker_pool_active", "Active workers.", workerActive)
|
||||
writeGauge(&b, "fs_worker_pool_size", "Configured worker pool size.", workerSize)
|
||||
|
||||
writeHistogramVecKV(&b, "fs_lock_wait_seconds", "Time spent waiting for locks.", lockWait, []string{"lock_name"})
|
||||
writeHistogramVecKV(&b, "fs_lock_hold_seconds", "Time locks were held.", lockHold, []string{"lock_name"})
|
||||
|
||||
writeCounterVecKV(&b, "fs_cache_hits_total", "Cache hits by cache name.", cacheHits, []string{"cache"})
|
||||
writeCounterVecKV(&b, "fs_cache_misses_total", "Cache misses by cache name.", cacheMisses, []string{"cache"})
|
||||
|
||||
writeHistogram(&b, "fs_batch_size_histogram", "Observed batch sizes.", nil, batchBounds, batchCounts, batchSum, batchCount)
|
||||
|
||||
writeCounterVecKV(&b, "fs_retries_total", "Retries by operation and reason.", retries, []string{"op", "reason"})
|
||||
writeCounterVecKV(&b, "fs_errors_total", "Errors by operation and reason.", errorsTotal, []string{"op", "reason"})
|
||||
|
||||
writeCounterVecKV(&b, "fs_gc_runs_total", "Garbage collection runs.", gcRuns, []string{"result"})
|
||||
writeHistogram(&b, "fs_gc_duration_seconds", "Garbage collection runtime.", nil, gcDurBounds, gcDurCounts, gcDurSum, gcDurCount)
|
||||
@@ -286,15 +588,18 @@ func (r *Registry) RenderPrometheus() string {
|
||||
writeCounter(&b, "fs_runtime_gc_cycles_total", "Completed GC cycles.", uint64(mem.NumGC))
|
||||
writeCounterFloat(&b, "fs_runtime_gc_pause_seconds_total", "Total GC pause time in seconds.", float64(mem.PauseTotalNs)/1e9)
|
||||
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func normalizeRoute(route string) string {
|
||||
route = strings.TrimSpace(route)
|
||||
if route == "" {
|
||||
return "/unknown"
|
||||
if hasCPU {
|
||||
writeCounterFloat(&b, "process_cpu_seconds_total", "Total user and system CPU time spent in seconds.", cpuSeconds)
|
||||
}
|
||||
return route
|
||||
if hasResident {
|
||||
writeGauge(&b, "process_resident_memory_bytes", "Resident memory size in bytes.", resident)
|
||||
}
|
||||
if hasOpenFDs {
|
||||
writeGauge(&b, "process_open_fds", "Number of open file descriptors.", openFDs)
|
||||
writeGauge(&b, "fs_open_fds", "Number of open file descriptors.", openFDs)
|
||||
}
|
||||
|
||||
return b.String()
|
||||
}
|
||||
|
||||
type histogramSnapshot struct {
|
||||
@@ -312,16 +617,19 @@ func copyCounterMap(src map[string]uint64) map[string]uint64 {
|
||||
return out
|
||||
}
|
||||
|
||||
func copyIntGaugeMap(src map[string]int64) map[string]int64 {
|
||||
out := make(map[string]int64, len(src))
|
||||
for k, v := range src {
|
||||
out[k] = v
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func copyHistogramMap(src map[string]*histogram) map[string]histogramSnapshot {
|
||||
out := make(map[string]histogramSnapshot, len(src))
|
||||
for k, h := range src {
|
||||
bounds, counts, sum, count := h.snapshot()
|
||||
out[k] = histogramSnapshot{
|
||||
bounds: bounds,
|
||||
counts: counts,
|
||||
sum: sum,
|
||||
count: count,
|
||||
}
|
||||
out[k] = histogramSnapshot{bounds: bounds, counts: counts, sum: sum, count: count}
|
||||
}
|
||||
return out
|
||||
}
|
||||
@@ -357,6 +665,19 @@ func writeGaugeVec(b *strings.Builder, name, help string, values map[string]floa
|
||||
}
|
||||
}
|
||||
|
||||
func writeGaugeVecFromInt64(b *strings.Builder, name, help string, values map[string]int64, labelName string) {
|
||||
fmt.Fprintf(b, "# HELP %s %s\n", name, help)
|
||||
fmt.Fprintf(b, "# TYPE %s gauge\n", name)
|
||||
keys := make([]string, 0, len(values))
|
||||
for k := range values {
|
||||
keys = append(keys, k)
|
||||
}
|
||||
sort.Strings(keys)
|
||||
for _, key := range keys {
|
||||
fmt.Fprintf(b, "%s{%s=\"%s\"} %.9f\n", name, labelName, escapeLabelValue(key), float64(values[key]))
|
||||
}
|
||||
}
|
||||
|
||||
func writeCounterVecKV(b *strings.Builder, name, help string, values map[string]uint64, labels []string) {
|
||||
fmt.Fprintf(b, "# HELP %s %s\n", name, help)
|
||||
fmt.Fprintf(b, "# TYPE %s counter\n", name)
|
||||
@@ -396,12 +717,7 @@ func writeHistogramVecKV(b *strings.Builder, name, help string, values map[strin
|
||||
func writeHistogram(b *strings.Builder, name, help string, labels map[string]string, bounds []float64, counts []uint64, sum float64, count uint64) {
|
||||
fmt.Fprintf(b, "# HELP %s %s\n", name, help)
|
||||
fmt.Fprintf(b, "# TYPE %s histogram\n", name)
|
||||
writeHistogramWithLabelsMap(b, name, labels, histogramSnapshot{
|
||||
bounds: bounds,
|
||||
counts: counts,
|
||||
sum: sum,
|
||||
count: count,
|
||||
})
|
||||
writeHistogramWithLabelsMap(b, name, labels, histogramSnapshot{bounds: bounds, counts: counts, sum: sum, count: count})
|
||||
}
|
||||
|
||||
func writeHistogramWithLabelsMap(b *strings.Builder, name string, labels map[string]string, s histogramSnapshot) {
|
||||
@@ -464,8 +780,42 @@ func trimFloat(v float64) string {
|
||||
}
|
||||
|
||||
func escapeLabelValue(value string) string {
|
||||
value = strings.ReplaceAll(value, `\`, `\\`)
|
||||
value = strings.ReplaceAll(value, "\n", `\n`)
|
||||
value = strings.ReplaceAll(value, `"`, `\"`)
|
||||
value = strings.ReplaceAll(value, `\\`, `\\\\`)
|
||||
value = strings.ReplaceAll(value, "\n", `\\n`)
|
||||
value = strings.ReplaceAll(value, `"`, `\\"`)
|
||||
return value
|
||||
}
|
||||
|
||||
func readOpenFDs() (float64, bool) {
|
||||
entries, err := os.ReadDir("/proc/self/fd")
|
||||
if err != nil {
|
||||
return 0, false
|
||||
}
|
||||
return float64(len(entries)), true
|
||||
}
|
||||
|
||||
func readResidentMemoryBytes() (float64, bool) {
|
||||
data, err := os.ReadFile("/proc/self/statm")
|
||||
if err != nil {
|
||||
return 0, false
|
||||
}
|
||||
fields := strings.Fields(string(data))
|
||||
if len(fields) < 2 {
|
||||
return 0, false
|
||||
}
|
||||
rssPages, err := strconv.ParseInt(fields[1], 10, 64)
|
||||
if err != nil || rssPages < 0 {
|
||||
return 0, false
|
||||
}
|
||||
return float64(rssPages * int64(os.Getpagesize())), true
|
||||
}
|
||||
|
||||
func readProcessCPUSeconds() (float64, bool) {
|
||||
var usage syscall.Rusage
|
||||
if err := syscall.Getrusage(syscall.RUSAGE_SELF, &usage); err != nil {
|
||||
return 0, false
|
||||
}
|
||||
user := float64(usage.Utime.Sec) + float64(usage.Utime.Usec)/1e6
|
||||
sys := float64(usage.Stime.Sec) + float64(usage.Stime.Usec)/1e6
|
||||
return user + sys, true
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user