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| author |   Anna-Maria Behnsen <anna-maria@linutronix.de> | 2023-12-01 10:26:28 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2023-12-20 16:49:38 +0100 |
| commit | d124c3393e798b1fb142ee728d5c8976d11e722d (patch) | |
| tree | 458ebf8804f3a74fd641a4dbe5ad8c39af5bab60 /scripts/gdb/linux/interrupts.py | |
| parent | tracing/timers: Add tracepoint for tracking timer base is_idle flag (diff) | |
| download | wireguard-linux-d124c3393e798b1fb142ee728d5c8976d11e722d.tar.xz wireguard-linux-d124c3393e798b1fb142ee728d5c8976d11e722d.zip | |
timers: Do not IPI for deferrable timers
Deferrable timers do not prevent CPU from going idle and are not taken into
account on idle path. Sending an IPI to a remote CPU when a new first
deferrable timer was enqueued will wake up the remote CPU but nothing will
be done regarding the deferrable timers.
Drop IPI completely when a new first deferrable timer was enqueued.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20231201092654.34614-7-anna-maria@linutronix.de
Diffstat (limited to 'scripts/gdb/linux/interrupts.py')
0 files changed, 0 insertions, 0 deletions