Commit 82253a27 authored by Daniel Bristot de Oliveira's avatar Daniel Bristot de Oliveira Committed by Steven Rostedt (Google)
Browse files

rtla/timerlat: Fix "Previous IRQ" auto analysis' line 

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@kernel.org



Fixes: 27e348b2 ("rtla/timerlat: Add auto-analysis core")
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarDaniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent 9fa48a24

tools/tracing/rtla/src/timerlat_aa.c

+1 −1
Original line number Diff line number Diff line
@@ -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));



	/*