90 lines
1.8 KiB
Go
90 lines
1.8 KiB
Go
package counters
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import (
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"database/sql"
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"runtime"
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"sync"
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"time"
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c "github.com/Azareal/Gosora/common"
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qgen "github.com/Azareal/Gosora/query_gen"
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"github.com/pkg/errors"
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)
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var MemoryCounter *DefaultMemoryCounter
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type DefaultMemoryCounter struct {
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insert *sql.Stmt
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totMem uint64
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totCount uint64
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stackMem uint64
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stackCount uint64
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heapMem uint64
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heapCount uint64
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sync.Mutex
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}
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func NewMemoryCounter(acc *qgen.Accumulator) (*DefaultMemoryCounter, error) {
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co := &DefaultMemoryCounter{
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insert: acc.Insert("memchunks").Columns("count, stack, heap, createdAt").Fields("?,?,?,UTC_TIMESTAMP()").Prepare(),
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}
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c.AddScheduledFifteenMinuteTask(co.Tick)
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//c.AddScheduledSecondTask(co.Tick)
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c.AddShutdownTask(co.Tick)
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ticker := time.NewTicker(time.Minute)
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go func() {
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for {
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select {
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case <-ticker.C:
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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co.Lock()
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co.totCount++
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co.totMem += m.Sys
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co.stackCount++
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co.stackMem += m.StackInuse
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co.heapCount++
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co.heapMem += m.HeapAlloc
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co.Unlock()
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}
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}
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}()
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return co, acc.FirstError()
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}
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func (co *DefaultMemoryCounter) Tick() (err error) {
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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var avgMem, avgStack, avgHeap uint64
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co.Lock()
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co.totCount++
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co.totMem += m.Sys
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co.stackCount++
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co.stackMem += m.StackInuse
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co.heapCount++
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co.heapMem += m.HeapAlloc
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avgMem = co.totMem / co.totCount
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avgStack = co.stackMem / co.stackCount
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avgHeap = co.heapMem / co.heapCount
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co.totMem = 0
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co.totCount = 0
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co.stackMem = 0
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co.stackCount = 0
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co.heapMem = 0
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co.heapCount = 0
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co.Unlock()
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c.DebugLogf("Inserting a memchunk with a value of %d - %d - %d", avgMem, avgStack, avgHeap)
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_, err = co.insert.Exec(avgMem, avgStack, avgHeap)
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if err != nil {
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return errors.Wrap(errors.WithStack(err), "mem counter")
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}
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return nil
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}
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