mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-28 03:41:29 +00:00
512c98fd79
To maximize the cpu utilization, core 0 is usually shared by service vm and guest vm. But there are no statistics to show the cpu occupation of each vm. This patch is to provide cpu usage statistic for users. To calculate it, a new trace event is added and marked in scheduling context switch, accompanying with a new python script to analyze the data from acrntrace output. Tracked-On: #8621 Signed-off-by: nacui <na.cui@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com> Reviewed-by: Haiwei Li <haiwei.li@intel.com>
103 lines
2.5 KiB
Python
Executable File
103 lines
2.5 KiB
Python
Executable File
#!/usr/bin/python3
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# -*- coding: UTF-8 -*-
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"""
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This is the main script of arnalyzer, which:
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- parse the options
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- call a specific script to do analysis
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"""
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import sys
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import getopt
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import os
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from vmexit_analyze import analyze_vm_exit
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from irq_analyze import analyze_irq
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from cpuusage_analyze import analyze_cpu_usage
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def usage():
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"""print the usage of the script
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Args: NA
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Returns: None
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Raises: NA
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"""
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print ('''
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[Usage] acrnalyze.py [options] [value] ...
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[options]
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-h: print this message
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-i, --ifile=[string]: input file
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-o, --ofile=[string]: output file
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-f, --frequency=[unsigned int]: TSC frequency in MHz
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--vm_exit: to generate vm_exit report
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--irq: to generate irq related report
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--cpu_usage: to generate cpu_usage report
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''')
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def do_analysis(ifile, ofile, analyzer, freq):
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"""do the specific analysis
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Args:
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ifile: input trace data file
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ofile: output analysis report file
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analyzer: a function do the specific analysis
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freq: TSC frequency of the host where we capture the trace data
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Returns:
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None
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Raises:
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NA
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"""
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for alyer in analyzer:
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alyer(ifile, ofile, freq)
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def main(argv):
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"""Main enterance function
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Args:
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argv: arguments string
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Returns:
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None
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Raises:
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GetoptError
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"""
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inputfile = ''
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outputfile = ''
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# Default TSC frequency of MRB in MHz
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freq = 1881.6
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opts_short = "hi:o:f:"
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opts_long = ["ifile=", "ofile=", "frequency=", "vm_exit", "irq", "cpu_usage"]
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analyzer = []
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try:
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opts, args = getopt.getopt(argv, opts_short, opts_long)
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except getopt.GetoptError:
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usage()
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sys.exit(1)
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for opt, arg in opts:
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if opt == '-h':
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usage()
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sys.exit()
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elif opt in ("-i", "--ifile"):
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inputfile = arg
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elif opt in ("-o", "--ofile"):
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outputfile = arg
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elif opt in ("-f", "--frequency"):
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freq = arg
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elif opt == "--vm_exit":
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analyzer.append(analyze_vm_exit)
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elif opt == "--irq":
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analyzer.append(analyze_irq)
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elif opt == "--cpu_usage":
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analyzer.append(analyze_cpu_usage)
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else:
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assert False, "unhandled option"
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assert inputfile != '', "input file is required"
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assert outputfile != '', "output file is required"
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assert analyzer != '', 'MUST contain one of analyzer: ''vm_exit'
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do_analysis(inputfile, outputfile, analyzer, freq)
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if __name__ == "__main__":
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main(sys.argv[1:])
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