From: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx> [ Upstream commit 82253a271aae9271fcf0aaa5e0ecc6dd38fb872b ] The "Previous IRQ interference" line is misaligned and without a \n, breaking the tool's output: ## CPU 12 hit stop tracing, analyzing it ## Previous IRQ interference: up to 2.22 us IRQ handler delay: 18.06 us (0.00 %) IRQ latency: 18.52 us Timerlat IRQ duration: 4.41 us (0.00 %) Blocking thread: 216.93 us (0.03 %) Fix the output: ## CPU 7 hit stop tracing, analyzing it ## Previous IRQ interference: up to 8.93 us IRQ handler delay: 0.98 us (0.00 %) IRQ latency: 2.95 us Timerlat IRQ duration: 11.26 us (0.03 %) Link: https://lore.kernel.org/linux-trace-devel/8b5819077f15ccf24745c9bf3205451e16ee32d9.1679685525.git.bristot@xxxxxxxxxx Fixes: 27e348b221f6 ("rtla/timerlat: Add auto-analysis core") Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- tools/tracing/rtla/src/timerlat_aa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/tracing/rtla/src/timerlat_aa.c b/tools/tracing/rtla/src/timerlat_aa.c index ec4e0f4b0e6cd..1843fff66da5b 100644 --- a/tools/tracing/rtla/src/timerlat_aa.c +++ b/tools/tracing/rtla/src/timerlat_aa.c @@ -548,7 +548,7 @@ static void timerlat_thread_analysis(struct timerlat_aa_data *taa_data, int cpu, exp_irq_ts = taa_data->timer_irq_start_time - taa_data->timer_irq_start_delay; if (exp_irq_ts < taa_data->prev_irq_timstamp + taa_data->prev_irq_duration) - printf(" Previous IRQ interference: \t up to %9.2f us", + printf(" Previous IRQ interference: \t\t up to %9.2f us\n", ns_to_usf(taa_data->prev_irq_duration)); /* -- 2.39.2
