Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
hrtimer: Add hrtimer_rearm tracepoint
Analyzing the reprogramming of the clock event device is essential to debug
the behaviour of the hrtimer subsystem especially with the upcoming
deferred rearming scheme.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260224163430.803669745@kernel.org
authored by
Thomas Gleixner
and committed by
Peter Zijlstra
8e10f6b8
85a690d1
+24
+24
include/trace/events/timer.h
+24
include/trace/events/timer.h
···
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/**
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* hrtimer_rearm - Invoked when the clockevent device is rearmed
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* @next_event: The next expiry time (CLOCK_MONOTONIC)
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*/
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TRACE_EVENT(hrtimer_rearm,
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TP_PROTO(ktime_t next_event, bool deferred),
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TP_ARGS(next_event, deferred),
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TP_STRUCT__entry(
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__field( s64, next_event )
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__field( bool, deferred )
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),
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TP_fast_assign(
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__entry->next_event = next_event;
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__entry->deferred = deferred;
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),
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TP_printk("next_event=%llu deferred=%d",
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(unsigned long long) __entry->next_event, __entry->deferred)
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);
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/**
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* itimer_state - called when itimer is started or canceled
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* @which: name of the interval timer
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* @value: the itimers value, itimer is canceled if value->it_value is