audio: perf: change module CPC calculation

Previously, module CPC is calculated by multiplying the mean value of cpu_peak with a margin scalar, after internal technical discussion, change module CPC to the maximum value of module's cpu_peak as aligned. Signed-off-by: Baofeng Tian <[email protected]>
thesofproject · Nov 13, 2023 · 1a8f8ec · 1a8f8ec
1 parent 6715ffb
commit 1a8f8ec
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/tools/sof_perf_analyzer.py b/tools/sof_perf_analyzer.py
@@ -27,9 +27,6 @@
 
 import pandas as pd
 
-# currently, keep CPC = avg_cpu_peak * CPC_MARGIN
-CPC_MARGIN = 1.15
-
 @dataclass()
 class TraceItem:
     '''The structural representation for a single, parsed line of trace'''
@@ -237,8 +234,7 @@ def analyze_perf_info():
     perf_stats.columns = ['CPU_AVG(MIN)', 'CPU_AVG(AVG)', 'CPU_AVG(MAX)',
                           'CPU_PEAK(MIN)', 'CPU_PEAK(AVG)', 'CPU_PEAK(MAX)']
     perf_stats['PEAK(MAX)/AVG(AVG)'] = perf_stats['CPU_PEAK(MAX)'] / perf_stats['CPU_AVG(AVG)']
-    comp_peak_avg_cycles = perf_info.groupby('COMP_ID')['CPU_PEAK'].mean()
-    perf_stats['MODULE_CPC'] = comp_peak_avg_cycles * CPC_MARGIN
+    perf_stats['MODULE_CPC'] = perf_info.groupby('COMP_ID')['CPU_PEAK'].max()
     # change data type from float to int
     perf_stats['MODULE_CPC'] = perf_stats['MODULE_CPC'].astype(int)