Latency measuring infrastructure
modulename: latencytop.ko
configname: CONFIG_LATENCYTOP
Linux Kernel Configuration
└─>Kernel hacking
└─>Latency measuring infrastructure
In linux kernel since version 2.6.25 (release Date: 2008-04-16)
Enable this option if you want to use the LatencyTOP tool
to find out which userspace is blocking on what kernel operations.
to find out which userspace is blocking on what kernel operations.
source code:
selects
CONFIG_FRAME_POINTERCONFIG_KALLSYMS
CONFIG_KALLSYMS_ALL
CONFIG_STACKTRACE
CONFIG_SCHEDSTATS
CONFIG_SCHED_DEBUG