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libnvme(2) API Manual libnvme(2)

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

not reported
greater than or equal to 100 secs
greater than or equal to 50 secs and less than 100 secs
greater than or equal to 10 secs and less than 50 secs
greater than or equal to 5 secs and less than 10 secs
greater than or equal to 1 sec and less than 5 secs
greater than or equal to 500 msecs and less than 1 sec
greater than or equal to 100 msecs and less than 500 msecs
greater than or equal to 50 msecs and less than 100 msecs
greater than or equal to 10 msecs and less than 50 msecs
greater than or equal to 5 msecs and less than 10 msecs
greater than or equal to 1 msec and less than 5 msecs
greater than or equal to 500 usecs and less than 1 msec
greater than or equal to 100 usecs and less than 500 usecs
greater than or equal to 50 usecs and less than 100 usecs
greater than or equal to 10 usecs and less than 50 usecs
greater than or equal to 5 usecs and less than 10 usecs
greater than or equal to 1 usec and less than 5 usecs
greater than or equal to 500 nsecs and less than 1 usec
greater than or equal to 100 nsecs and less than 500 nsecs
greater than or equal to 50 nsecs and less than 100 nsecs
greater than or equal to 10 nsecs and less than 50 nsecs
greater than or equal to 5 nsecs and less than 10 nsecs
greater than or equal to 1 nsec and less than 5 nsecs
enum nvme_feat_perfc_r4karl August 2025