Lines Matching refs:adaptive

109 and such CPUs are said to be "adaptive-ticks CPUs".  This is important
119 By default, no CPU will be an adaptive-ticks CPU.  The "nohz_full="
120 boot parameter specifies the adaptive-ticks CPUs.  For example,
121 "nohz_full=1,6-8" says that CPUs 1, 6, 7, and 8 are to be adaptive-ticks
123 adaptive-tick CPUs:  At least one non-adaptive-tick CPU must remain
125 calls like gettimeofday() returns accurate values on adaptive-tick CPUs.
128 boot CPU is prohibited from entering adaptive-ticks mode.  Specifying a
134 Finally, adaptive-ticks CPUs must have their RCU callbacks offloaded.
137 Normally, a CPU remains in adaptive-ticks mode as long as possible.
139 the mode.  Instead, the CPU will exit adaptive-ticks mode only if needed,
142 Just as with dyntick-idle mode, the benefits of adaptive-tick mode do
146 	adaptive ticks without also running dyntick idle.  This dependency
154 3.	POSIX CPU timers prevent CPUs from entering adaptive-tick mode.
163 	entering adaptive-tick mode.
165 5.	Scheduler statistics for adaptive-tick CPUs may be computed
166 	slightly differently than those for non-adaptive-tick CPUs.
169 6.	The LB_BIAS scheduler feature is disabled by adaptive ticks.
171 Although improvements are expected over time, adaptive ticks is quite
173 However, the drawbacks listed above mean that adaptive ticks should not
180 enter either dyntick-idle mode or adaptive-tick mode, the most
184 to enter dyntick-idle mode or adaptive-tick mode anyway.  In this case,
196 or adaptive-tick mode.  That said, note that it is up to userspace to
231 	some workloads will no doubt want to use adaptive ticks to
278 o	A reboot is required to reconfigure both adaptive idle and RCU
306 o	If there might potentially be some adaptive-ticks CPUs, there