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Searched refs:latency (Results 1 – 8 of 8) sorted by relevance

/kernel/
DKconfig.preempt37 This option reduces the latency of the kernel by adding more
40 latency of rescheduling, providing faster application reactions,
56 This option reduces the latency of the kernel by making
67 embedded system with latency requirements in the milliseconds
/kernel/trace/
Dtrace_hwlat.c282 u64 latency; in get_sample() local
299 latency = max(sample, outer_sample); in get_sample()
302 if (latency > tr->max_latency) { in get_sample()
303 tr->max_latency = latency; in get_sample()
Dtrace_osnoise.c648 static void timerlat_dump_stack(u64 latency) in timerlat_dump_stack() argument
658 if (!osnoise_data.print_stack || osnoise_data.print_stack > latency) in timerlat_dump_stack()
675 #define timerlat_dump_stack(u64 latency) do {} while (0) argument
1265 static void notify_new_max_latency(u64 latency) in notify_new_max_latency() argument
1273 if (tracer_tracing_is_on(tr) && tr->max_latency < latency) { in notify_new_max_latency()
1274 tr->max_latency = latency; in notify_new_max_latency()
DKconfig372 This tracer tracks the latency of the highest priority task
408 file. Every time a latency is greater than tracing_thresh, it will
457 then computes a wakeup latency value as the difference between
462 timer latency observed at the hardirq context before the
463 activation of the thread. The second is the timer latency observed
532 or irq latency tracers are enabled, as those need to swap as well
1051 tristate "Test module to create a preempt / IRQ disable delay thread to test latency tracers"
1054 Select this option to build a test module that can help test latency
1063 What's more, if you want to attach the test on the cpu which the latency
/kernel/sched/
Ddebug.c1074 void resched_latency_warn(int cpu, u64 latency) in resched_latency_warn() argument
1081 cpu, latency, cpu_rq(cpu)->ticks_without_resched); in resched_latency_warn()
Dsched.h2800 extern void resched_latency_warn(int cpu, u64 latency);
2809 static inline void resched_latency_warn(int cpu, u64 latency) {} in resched_latency_warn() argument
Dfair.c1583 unsigned int latency, th, def_th; in should_numa_migrate_memory() local
1598 latency = numa_hint_fault_latency(page); in should_numa_migrate_memory()
1599 if (latency >= th) in should_numa_migrate_memory()
/kernel/rcu/
DKconfig290 it is your responsibility to ensure that latency-sensitive