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Introduce a script that provides a simple ascii representation of the
timer migration tree on top of boot trace events.
First boot with:
trace_event==tmigr_connect_cpu_parent,tmigr_connect_child_parent
Then parse the result with:
scripts/timer_migration_tree.py < /sys/kernel/tracing/trace
On a system with 8 CPUs, this produces the following output:
Tree for capacity 1024
/-0, node 0, lvl:-1
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|--1, node 0, lvl:-1
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|--2, node 0, lvl:-1
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|--3, node 0, lvl:-1
-- /00000000dcebac8b, node 0, lvl:0
|--4, node 0, lvl:-1
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|--5, node 0, lvl:-1
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|--6, node 0, lvl:-1
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\-7, node 0, lvl:-1
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260423165354.95152-7-frederic@kernel.org
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