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Windows: Use system specific parallelism value on containers restart

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Signed-off-by: Olli Janatuinen <olli.janatuinen@gmail.com>
(cherry picked from commit 447a840254)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Olli Janatuinen 2019-08-13 10:10:19 +03:00 committed by Sebastiaan van Stijn
parent ea84732a77
commit e1cae011e2
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1 changed files with 5 additions and 2 deletions
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7
daemon/daemon_windows.go
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@ -3,7 +3,9 @@ package daemon // import "github.com/docker/docker/daemon"
import (
"context"
"fmt"
"math"
"path/filepath"
"runtime"
"strings"
"github.com/Microsoft/hcsshim"
@ -40,9 +42,10 @@ const (
windowsMaxCPUPercent = 100
)
// Windows doesn't really have rlimits.
// Windows containers are much larger than Linux containers and each of them
// have > 20 system processes which why we use much smaller parallelism value.
func adjustParallelLimit(n int, limit int) int {
return limit
return int(math.Max(1, math.Floor(float64(runtime.NumCPU())*.8)))
}
// Windows has no concept of an execution state directory. So use config.Root here.