---
name: "nvme_feat_perfc_r4karl-libnvme3"
section: "2"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme_feat_perfc_r4karl-libnvme3"
---

# nvme\_feat\_perfc\_r4karl-libnvme3(2)

standard performance attribute random 4 kib average latency

## NAME

enum nvme\_feat\_perfc\_r4karl - standard performance attribute random 4 kib average latency

## SYNOPSIS

enum nvme\_feat\_perfc\_r4karl {\
     **NVME\_FEAT\_PERFC\_R4KARL\_NO\_REPORT** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_SEC** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_SEC** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_SEC** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_SEC** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_SEC** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_MS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_US** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_NS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_NS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_NS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_NS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_NS** , \
\
     **NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_NS**

};

## Constants

- NVME\_FEAT\_PERFC\_R4KARL\_NO\_REPORT

  not reported

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_SEC

  greater than or equal to 100 secs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_SEC

  greater than or equal to 50 secs and less than 100 secs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_SEC

  greater than or equal to 10 secs and less than 50 secs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_SEC

  greater than or equal to 5 secs and less than 10 secs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_SEC

  greater than or equal to 1 sec and less than 5 secs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_MS

  greater than or equal to 500 msecs and less than 1 sec

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_MS

  greater than or equal to 100 msecs and less than 500 msecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_MS

  greater than or equal to 50 msecs and less than 100 msecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_MS

  greater than or equal to 10 msecs and less than 50 msecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_MS

  greater than or equal to 5 msecs and less than 10 msecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_MS

  greater than or equal to 1 msec and less than 5 msecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_US

  greater than or equal to 500 usecs and less than 1 msec

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_US

  greater than or equal to 100 usecs and less than 500 usecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_US

  greater than or equal to 50 usecs and less than 100 usecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_US

  greater than or equal to 10 usecs and less than 50 usecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_US

  greater than or equal to 5 usecs and less than 10 usecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_US

  greater than or equal to 1 usec and less than 5 usecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_500\_NS

  greater than or equal to 500 nsecs and less than 1 usec

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_100\_NS

  greater than or equal to 100 nsecs and less than 500 nsecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_50\_NS

  greater than or equal to 50 nsecs and less than 100 nsecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_10\_NS

  greater than or equal to 10 nsecs and less than 50 nsecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_5\_NS

  greater than or equal to 5 nsecs and less than 10 nsecs

- NVME\_FEAT\_PERFC\_R4KARL\_GE\_1\_NS

  greater than or equal to 1 nsec and less than 5 nsecs