72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package background
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import (
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"math"
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"os"
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"runtime"
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"time"
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"git.fjla.uk/owlboard/timetable-mgr/cif"
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"git.fjla.uk/owlboard/timetable-mgr/corpus"
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"git.fjla.uk/owlboard/timetable-mgr/helpers"
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"git.fjla.uk/owlboard/timetable-mgr/log"
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"go.uber.org/zap"
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)
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const frequency = 2 * time.Hour // Figure out a sensible frequency!
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// Starts a background ticker to run background tasks. Uses the frequency configured in the background/ticker.go file
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func InitTicker(cfg *helpers.Configuration, stop <-chan struct{}) {
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go runTicker(cfg, stop)
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// Run goroutine logging ticker if env "perflog" is set to "on"
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if os.Getenv("perflog") == "on" {
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go goroutineTicker(stop)
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}
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}
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// Runs the ticker and handles tick events
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func runTicker(cfg *helpers.Configuration, stop <-chan struct{}) {
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log.Info("Starting background task ticker", zap.Duration("frequency", frequency))
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ticker := time.NewTicker(frequency)
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defer ticker.Stop()
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for {
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select {
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case <-stop:
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log.Debug("Stopping background task ticker")
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return
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case <-ticker.C:
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log.Debug("Running background tasks")
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go cif.CheckCif(cfg)
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go corpus.CheckCorpus(cfg)
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}
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}
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}
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// Starts a ticker that logs how many goroutines are running every two seconds
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func goroutineTicker(stop <-chan struct{}) {
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log.Debug("Starting goroutine resource logging ticker")
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ticker := time.NewTicker(1000 * time.Millisecond)
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defer ticker.Stop()
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for {
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select {
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case <-stop:
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return
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case <-ticker.C:
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debugLog()
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}
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}
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}
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func debugLog() {
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var memStats runtime.MemStats
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runtime.ReadMemStats(&memStats)
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goroutines := runtime.NumGoroutine()
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heapMem := float64(memStats.HeapAlloc) / (1024 * 1024)
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heapMemRound := math.Round(heapMem*100) / 100
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log.Debug("Performance", zap.Int("goroutine-count", goroutines), zap.Float64("heap-mem (MB)", heapMemRound))
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}
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