diff mbox series

[1/3] rtla/timerlat_aa: Zero thread sum after every sample analysis

Message ID 97bff55b0141f2d01b47d9450a5672fde147b89a.1691162043.git.bristot@kernel.org
State New
Headers
Series rtla fixes for 6.5 |

Commit Message

Daniel Bristot de Oliveira Aug. 4, 2023, 3:52 p.m. UTC 
  The thread thread_thread_sum accounts for thread interference
during a single activation. It was not being zeroed, so it was
accumulating thread interference over all activations.

It was not that visible when timerlat was the highest priority.

Fixes: 27e348b221f6 ("rtla/timerlat: Add auto-analysis core")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
---
 tools/tracing/rtla/src/timerlat_aa.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tools/tracing/rtla/src/timerlat_aa.c b/tools/tracing/rtla/src/timerlat_aa.c
index e0ffe69c271c..dec5b4c4511e 100644
--- a/tools/tracing/rtla/src/timerlat_aa.c
+++ b/tools/tracing/rtla/src/timerlat_aa.c
@@ -159,6 +159,7 @@  static int timerlat_aa_irq_latency(struct timerlat_aa_data *taa_data,
 	taa_data->thread_nmi_sum = 0;
 	taa_data->thread_irq_sum = 0;
 	taa_data->thread_softirq_sum = 0;
+	taa_data->thread_thread_sum = 0;
 	taa_data->thread_blocking_duration = 0;
 	taa_data->timer_irq_start_time = 0;
 	taa_data->timer_irq_duration = 0;