Lines Matching refs: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.
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 6.	The LB_BIAS scheduler feature is disabled by adaptive ticks.
176 Although improvements are expected over time, adaptive ticks is quite
178 However, the drawbacks listed above mean that adaptive ticks should not
186 enter either dyntick-idle mode or adaptive-tick mode, the most
190 to enter dyntick-idle mode or adaptive-tick mode anyway.  In this case,
202 or adaptive-tick mode.  That said, note that it is up to userspace to
239 	some workloads will no doubt want to use adaptive ticks to
286 *	A reboot is required to reconfigure both adaptive idle and RCU
314 *	If there might potentially be some adaptive-ticks CPUs, there