I/O Path Selector based on historical service time
modulename: dm-historical-service-time.ko
configname: CONFIG_DM_MULTIPATH_HST
Linux Kernel Configuration
└─>Device Drivers
└─>Multiple devices driver support (RAID and LVM)
└─>I/O Path Selector based on historical service time
In linux kernel since version 5.1 (release Date: 2019-05-05)
This path selector is a dynamic load balancer which selects
the path expected to complete the incoming I/O in the shortest
time by comparing estimated service time (based on historical
service time).
If unsure, say N.
the path expected to complete the incoming I/O in the shortest
time by comparing estimated service time (based on historical
service time).
If unsure, say N.