Lines Matching full:adaptive

114 and such CPUs are said to be "adaptive-ticks CPUs".  This is important
124 By default, no CPU will be an adaptive-ticks CPU.  The "nohz_full="
125 boot parameter specifies the adaptive-ticks CPUs.  For example,
126 "nohz_full=1,6-8" says that CPUs 1, 6, 7, and 8 are to be adaptive-ticks
128 adaptive-tick CPUs:  At least one non-adaptive-tick CPU must remain
130 calls like gettimeofday() returns accurate values on adaptive-tick CPUs.
133 boot CPU is prohibited from entering adaptive-ticks mode.  Specifying a
139 Finally, adaptive-ticks CPUs must have their RCU callbacks offloaded.
142 Normally, a CPU remains in adaptive-ticks mode as long as possible.
144 the mode.  Instead, the CPU will exit adaptive-ticks mode only if needed,
147 Just as with dyntick-idle mode, the benefits of adaptive-tick mode do
151 	adaptive ticks without also running dyntick idle.  This dependency
159 3.	POSIX CPU timers prevent CPUs from entering adaptive-tick mode.
165 	all of them over time.  Adaptive-tick mode may prevent this
168 	entering adaptive-tick mode.
170 5.	Scheduler statistics for adaptive-tick CPUs may be computed
171 	slightly differently than those for non-adaptive-tick CPUs.
174 Although improvements are expected over time, adaptive ticks is quite
176 However, the drawbacks listed above mean that adaptive ticks should not
184 enter either dyntick-idle mode or adaptive-tick mode, the most
196 or adaptive-tick mode.  That said, note that it is up to userspace to
233 	some workloads will no doubt want to use adaptive ticks to
253 *	Adaptive-ticks slows user/kernel transitions slightly.
259 *	Adaptive-ticks does not do anything unless there is only one
280 *	A reboot is required to reconfigure both adaptive idle and RCU
308 *	If there might potentially be some adaptive-ticks CPUs, there