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.
136 Finally, adaptive-ticks CPUs must have their RCU callbacks offloaded.
139 Normally, a CPU remains in adaptive-ticks mode as long as possible.
141 the mode.  Instead, the CPU will exit adaptive-ticks mode only if needed,
144 Just as with dyntick-idle mode, the benefits of adaptive-tick mode do
148 	adaptive ticks without also running dyntick idle.  This dependency
156 3.	POSIX CPU timers prevent CPUs from entering adaptive-tick mode.
162 	all of them over time.  Adaptive-tick mode may prevent this
165 	entering adaptive-tick mode.
167 5.	Scheduler statistics for adaptive-tick CPUs may be computed
168 	slightly differently than those for non-adaptive-tick CPUs.
171 Although improvements are expected over time, adaptive ticks is quite
173 However, the drawbacks listed above mean that adaptive ticks should not
181 enter either dyntick-idle mode or adaptive-tick mode, the most
193 or adaptive-tick mode.  That said, note that it is up to userspace to
230 	some workloads will no doubt want to use adaptive ticks to
250 *	Adaptive-ticks slows user/kernel transitions slightly.
256 *	Adaptive-ticks does not do anything unless there is only one
277 *	A reboot is required to reconfigure both adaptive idle and RCU
305 *	If there might potentially be some adaptive-ticks CPUs, there