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[disk][windows] Set EnableCounterForIoctl reg key to 1 in init() to automatically enable diskperf on Server editions #1296

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merged 1 commit into from May 8, 2022
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[disk][windows] Set EnableCounterForIoctl reg key to 1 in init() to automatically enable diskperf on Server editions #1296

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9 changes: 9 additions & 0 deletions disk/disk_windows.go
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Expand Up @@ -12,6 +12,7 @@ import (

"github.com/shirou/gopsutil/v3/internal/common"
"golang.org/x/sys/windows"
"golang.org/x/sys/windows/registry"
)

var (
Expand Down Expand Up @@ -44,6 +45,14 @@ type diskPerformance struct {
alignmentPadding uint32 // necessary for 32bit support, see https://github.com/elastic/beats/pull/16553
}

func init() {
// enable disk performance counters on Windows Server editions (needs to run as admin)
key, err := registry.OpenKey(registry.LOCAL_MACHINE, `SYSTEM\CurrentControlSet\Services\PartMgr`, registry.SET_VALUE)
if err == nil {
key.SetDWordValue("EnableCounterForIoctl", 1)
}
}

func UsageWithContext(ctx context.Context, path string) (*UsageStat, error) {
lpFreeBytesAvailable := int64(0)
lpTotalNumberOfBytes := int64(0)
Expand Down