tools/tracing/rtla: osnoise_hist: display average with two-digit precision

Calculate average value in osnoise-hist summary with two-digit
precision to avoid displaying too optimitic results.

Link: https://lkml.kernel.org/r/20230103103400.275566-3-br015@umbiko.net
Signed-off-by: Andreas Ziegler <br015@umbiko.net>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index fe34452fc4ec0a68fc2e543eb1c20602d7142bae..13e1233690bb099a4edc6872e59142ab93cb4f21 100644 (file)
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -335,8 +335,8 @@ osnoise_print_summary(struct osnoise_hist_params *params,
                        continue;
 
                if (data->hist[cpu].count)
-                       trace_seq_printf(trace->seq, "%9llu ",
-                                       data->hist[cpu].sum_sample / data->hist[cpu].count);
+                       trace_seq_printf(trace->seq, "%9.2f ",
+                               ((double) data->hist[cpu].sum_sample) / data->hist[cpu].count);
                else
                        trace_seq_printf(trace->seq, "        - ");
        }