Print lazy preemption model in ftrace header when latency-format=1. cat /sys/kernel/debug/sched/preempt none voluntary full (lazy)
Without patch: latency: 0 us, #232946/232946, CPU#40 | (M:unknown VP:0, KP:0, SP:0 HP:0 #P:80) With Patch: latency: 0 us, #1897938/25566788, CPU#16 | (M:lazy VP:0, KP:0, SP:0 HP:0 #P:80) Signed-off-by: Shrikanth Hegde <[email protected]> --- kernel/trace/trace.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f8aebcb01e62..b6e40e8791fa 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4122,6 +4122,7 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) preempt_model_none() ? "server" : preempt_model_voluntary() ? "desktop" : preempt_model_full() ? "preempt" : + preempt_model_lazy() ? "lazy" : preempt_model_rt() ? "preempt_rt" : "unknown", /* These are reserved for later use */ -- 2.39.3
