129 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			129 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
"""Reads JSON files produced by the benchmarking framework and renders them.
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Installation:
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> apt-get install python3-pip
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> pip3 install matplotlib pandas seaborn
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Run:
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> python3 libc/benchmarks/libc-benchmark-analysis.py3 <files>
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"""
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import argparse
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import json
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import pandas as pd
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import seaborn as sns
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import matplotlib.pyplot as plt
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from matplotlib.ticker import EngFormatter
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def formatUnit(value, unit):
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    return EngFormatter(unit, sep="").format_data(value)
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def formatCache(cache):
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  letter = cache["Type"][0].lower()
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  level = cache["Level"]
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  size = formatUnit(cache["Size"], "B")
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  ways = cache["NumSharing"]
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  return F'{letter}L{level}:{size}/{ways}'
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def getCpuFrequency(study):
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    return study["Runtime"]["Host"]["CpuFrequency"]
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def getId(study):
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    CpuName = study["Runtime"]["Host"]["CpuName"]
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    CpuFrequency = formatUnit(getCpuFrequency(study), "Hz")
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    Mode = " (Sweep)" if study["Configuration"]["IsSweepMode"] else ""
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    CpuCaches = ", ".join(formatCache(c) for c in study["Runtime"]["Host"]["Caches"])
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    return F'{CpuName} {CpuFrequency}{Mode}\n{CpuCaches}'
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def getFunction(study):
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    return study["Configuration"]["Function"]
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def getLabel(study):
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    return F'{getFunction(study)} {study["StudyName"]}'
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def displaySweepData(id, studies, mode):
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    df = None
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    for study in studies:
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        Measurements = study["Measurements"]
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        SweepModeMaxSize = study["Configuration"]["SweepModeMaxSize"]
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        NumSizes = SweepModeMaxSize + 1
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        NumTrials = study["Configuration"]["NumTrials"]
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        assert NumTrials * NumSizes  == len(Measurements), 'not a multiple of NumSizes'
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        Index = pd.MultiIndex.from_product([range(NumSizes), range(NumTrials)], names=['size', 'trial'])
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        if df is None:
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            df = pd.DataFrame(Measurements, index=Index, columns=[getLabel(study)])
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        else:
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            df[getLabel(study)] = pd.Series(Measurements, index=Index)
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    df = df.reset_index(level='trial', drop=True)
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    if mode == "cycles":
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        df *= getCpuFrequency(study)
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    if mode == "bytespercycle":
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        df *= getCpuFrequency(study)
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        for col in df.columns:
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            df[col] = pd.Series(data=df.index, index=df.index).divide(df[col])
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    FormatterUnit = {"time":"s","cycles":"","bytespercycle":"B/cycle"}[mode]
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    Label = {"time":"Time","cycles":"Cycles","bytespercycle":"Byte/cycle"}[mode]
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    graph = sns.lineplot(data=df, palette="muted", ci=95)
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    graph.set_title(id)
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    graph.yaxis.set_major_formatter(EngFormatter(unit=FormatterUnit))
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    graph.yaxis.set_label_text(Label)
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    graph.xaxis.set_major_formatter(EngFormatter(unit="B"))
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    graph.xaxis.set_label_text("Copy Size")
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    _ = plt.xticks(rotation=90)
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    plt.show()
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def displayDistributionData(id, studies, mode):
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    distributions = set()
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    df = None
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    for study in studies:
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        distribution = study["Configuration"]["SizeDistributionName"]
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        distributions.add(distribution)
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        local = pd.DataFrame(study["Measurements"], columns=["time"])
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        local["distribution"] = distribution
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        local["label"] = getLabel(study)
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        local["cycles"] = local["time"] * getCpuFrequency(study)
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        if df is None:
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            df = local
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        else:
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            df = df.append(local)
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    if mode == "bytespercycle":
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        mode = "time"
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        print("`--mode=bytespercycle` is ignored for distribution mode reports")
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    FormatterUnit = {"time":"s","cycles":""}[mode]
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    Label = {"time":"Time","cycles":"Cycles"}[mode]
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    graph = sns.violinplot(data=df, x="distribution", y=mode, palette="muted", hue="label", order=sorted(distributions))
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    graph.set_title(id)
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    graph.yaxis.set_major_formatter(EngFormatter(unit=FormatterUnit))
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    graph.yaxis.set_label_text(Label)
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    _ = plt.xticks(rotation=90)
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    plt.show()
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def main():
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    parser = argparse.ArgumentParser(description="Process benchmark json files.")
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    parser.add_argument("--mode", choices=["time", "cycles", "bytespercycle"], default="time", help="Use to display either 'time', 'cycles' or 'bytes/cycle'.")
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    parser.add_argument("files", nargs="+", help="The json files to read from.")
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    args = parser.parse_args()
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    study_groups = dict()
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    for file in args.files:
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        with open(file) as json_file:
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            json_obj = json.load(json_file)
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            Id = getId(json_obj)
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            if Id in study_groups:
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                study_groups[Id].append(json_obj)
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            else:
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                study_groups[Id] = [json_obj]
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    plt.tight_layout()
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    sns.set_theme(style="ticks")
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    for id, study_collection in study_groups.items():
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        if "(Sweep)" in id:
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            displaySweepData(id, study_collection, args.mode)
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        else:
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            displayDistributionData(id, study_collection, args.mode)
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if __name__ == "__main__":
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    main()
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