audio: perf: change module CPC calculation

Previously, module CPC is calcuated by peak cycle's average multiply with margin, after technical discussion, module CPC change to module's peak max. Signed-off-by: Baofeng Tian <[email protected]>
thesofproject · Nov 7, 2023 · 624dd9c · 624dd9c
1 parent 19a0efc
commit 624dd9c
Showing 1 changed file with 2 additions 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'''
@@ -274,8 +271,8 @@ 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
+    comp_peak_max_cycles = perf_info.groupby('COMP_ID')['CPU_PEAK'].max()
+    perf_stats['MODULE_CPC'] = comp_peak_max_cycles
     # change data type from float to int
     perf_stats['MODULE_CPC'] = perf_stats['MODULE_CPC'].astype(int)