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43 lines
733 B
Go
43 lines
733 B
Go
package tensorflow
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import (
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"os"
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"runtime/debug"
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"strconv"
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"strings"
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"sync/atomic"
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)
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const gcEveryDefault uint64 = 200
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var (
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gcEvery = gcEveryDefault
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gcCounter uint64
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)
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func init() {
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if v := strings.TrimSpace(os.Getenv("PHOTOPRISM_TF_GC_EVERY")); v != "" {
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if strings.HasPrefix(v, "-") {
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gcEvery = 0
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return
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}
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if n, err := strconv.ParseUint(v, 10, 64); err == nil {
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gcEvery = n
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}
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}
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}
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// MaybeCollectTensorMemory triggers GC and returns freed C-allocated tensor memory
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// to the OS every gcEvery calls; set gcEvery to 0 to disable the throttling.
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func MaybeCollectTensorMemory() {
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if gcEvery == 0 {
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return
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}
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if atomic.AddUint64(&gcCounter, 1)%gcEvery != 0 {
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return
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}
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debug.FreeOSMemory()
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}
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