mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-06-03 04:39:50 +00:00
DM:tools: add scripts for VM exit analysis
Script usage: [Usage] acrnalyze.py [options] [value] ... [options] -h: print this message -i, --ifile=[string]: input file -o, --ofile=[string]: output file --vm_exit: to generate vm_exit report Note: bash and python2 are required. Example: Assumed trace data have been copied to /home/xxxx/trace_data/20171115-101605 # acrnalyze.py -i /home/xxxx/trace_data/20171115-101605/0 -o /home/xxxx/trac e_data/20171115-101605/cpu0 --vm_exit - "--vm_exit" specify the analysis to do, currently, only vm_exit analysis is supported. - A preprocess would be taken out to make the trace data start and end with an VM_ENTER, and a copy of original data file is saved with suffix ".orig"; - Analysis report would be given on the std output and in a csv file with name specified via "-o outpu_file"; Reviewed-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Yan, Like <like.yan@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yan, Like
Jack Ren
parent
99c69c7773
commit
e09208b7d7
107
devicemodel/tools/acrntrace/scripts/acrnalyze.py
Executable file
107
devicemodel/tools/acrntrace/scripts/acrnalyze.py
Executable file
@ -0,0 +1,107 @@
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#!/usr/bin/python2
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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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- pre-process the trace data file
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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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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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--vm_exit: to generate vm_exit report
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'''
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def do_analysis(ifile, ofile, analyzer):
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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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Returns:
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None
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Raises:
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NA
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"""
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analyzer(ifile, ofile)
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# pre process to make sure the trace data start and end with VMENTER
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def pre_process(ifile, evstr):
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"""invoke sh script to preprocess the data file
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Args:
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ifile: input trace data file
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evstr: event string, after the processing, the data file should
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start and end with the string
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Returns:
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status of sh script execution
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Raises:
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NA
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"""
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status = os.system('bash pre_process.sh %s %s' % (ifile, evstr))
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return status
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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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opts_short = "hi:o:"
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opts_long = ["ifile=", "ofile=", "vm_exit"]
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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 == "--vm_exit":
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analyzer = analyze_vm_exit
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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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status = pre_process(inputfile, 'VM_ENTER')
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if status == 0:
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do_analysis(inputfile, outputfile, analyzer)
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else:
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print "Invalid trace data file %s" % (inputfile)
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if __name__ == "__main__":
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main(sys.argv[1:])
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33
devicemodel/tools/acrntrace/scripts/pre_process.sh
Executable file
33
devicemodel/tools/acrntrace/scripts/pre_process.sh
Executable file
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#!/bin/bash
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IFILE=$1
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STR=$2
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BAK_FILE=${IFILE}.orig
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if [ ! -f $BAK_FILE ]; then
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cp $IFILE $BAK_FILE
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fi
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echo $IFILE, $BAK_FILE, $STR
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FIRST_LINE=$(grep -n $STR -m 1 $IFILE | awk -F: '{print $1}')
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LAST_LINE=$(grep -n $STR $IFILE | tail -1 | awk -F: '{print $1}')
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TOTAL_LINE=$(wc -l $IFILE | awk '{print $1}')
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echo $FIRST_LINE, $LAST_LINE, $TOTAL_LINE
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if [[ $FIRST_LINE -ge $LAST_LINE || $LAST_LINE -gt $TOTAL_LINE ]]; then
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exit 1
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fi
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if [[ $LAST_LINE -lt $TOTAL_LINE ]]; then
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let LAST_LINE=$((LAST_LINE))+1
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echo "sed -i ${LAST_LINE},${TOTAL_LINE}d $IFILE"
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sed -i ${LAST_LINE}','${TOTAL_LINE}'d' $IFILE
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fi
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if [[ $FIRST_LINE -gt 2 ]]; then
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let FIRST_LINE=$((FIRST_LINE))-1
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echo "sed -i 2,${FIRST_LINE}d $IFILE"
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sed -i '2,'${FIRST_LINE}'d' $IFILE
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fi
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274
devicemodel/tools/acrntrace/scripts/vmexit_analyze.py
Executable file
274
devicemodel/tools/acrntrace/scripts/vmexit_analyze.py
Executable file
@ -0,0 +1,274 @@
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#!/usr/bin/python2
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# -*- coding: UTF-8 -*-
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"""
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This script defines the function to do the vm_exit analysis
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"""
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import csv
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TSC_BEGIN = 0L
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TSC_END = 0L
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TOTAL_NR_EXITS = 0L
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LIST_EVENTS = [
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'VMEXIT_EXCEPTION_OR_NMI',
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'VMEXIT_EXTERNAL_INTERRUPT',
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'VMEXIT_INTERRUPT_WINDOW',
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'VMEXIT_CPUID',
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'VMEXIT_RDTSC',
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'VMEXIT_VMCALL',
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'VMEXIT_CR_ACCESS',
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'VMEXIT_IO_INSTRUCTION',
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'VMEXIT_RDMSR',
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'VMEXIT_WRMSR',
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'VMEXIT_APICV_ACCESS',
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'VMEXIT_APICV_VIRT_EOI',
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'VMEXIT_EPT_VIOLATION',
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'VMEXIT_EPT_VIOLATION_GVT',
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'VMEXIT_EPT_MISCONFIGURATION',
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'VMEXIT_RDTSCP',
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'VMEXIT_APICV_WRITE',
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'VMEXIT_UNHANDLED'
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]
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NR_EXITS = {
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'VM_EXIT': 0,
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'VM_ENTER': 0,
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'VMEXIT_EXCEPTION_OR_NMI': 0,
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'VMEXIT_EXTERNAL_INTERRUPT': 0,
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'VMEXIT_INTERRUPT_WINDOW': 0,
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'VMEXIT_CPUID': 0,
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'VMEXIT_RDTSC': 0,
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'VMEXIT_VMCALL': 0,
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'VMEXIT_CR_ACCESS': 0,
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'VMEXIT_IO_INSTRUCTION': 0,
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'VMEXIT_RDMSR': 0,
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'VMEXIT_WRMSR': 0,
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'VMEXIT_APICV_ACCESS': 0,
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'VMEXIT_APICV_VIRT_EOI': 0,
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'VMEXIT_EPT_VIOLATION': 0,
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'VMEXIT_EPT_VIOLATION_GVT': 0,
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'VMEXIT_EPT_MISCONFIGURATION': 0,
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'VMEXIT_RDTSCP': 0,
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'VMEXIT_APICV_WRITE': 0,
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'VMEXIT_UNHANDLED': 0
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}
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TIME_IN_EXIT = {
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'VM_EXIT': 0,
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'VM_ENTER': 0,
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'VMEXIT_EXCEPTION_OR_NMI': 0,
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'VMEXIT_EXTERNAL_INTERRUPT': 0,
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'VMEXIT_INTERRUPT_WINDOW': 0,
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'VMEXIT_CPUID': 0,
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'VMEXIT_RDTSC': 0,
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'VMEXIT_VMCALL': 0,
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'VMEXIT_CR_ACCESS': 0,
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'VMEXIT_IO_INSTRUCTION': 0,
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'VMEXIT_RDMSR': 0,
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'VMEXIT_WRMSR': 0,
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'VMEXIT_APICV_ACCESS': 0,
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'VMEXIT_APICV_VIRT_EOI': 0,
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'VMEXIT_EPT_VIOLATION': 0,
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'VMEXIT_EPT_VIOLATION_GVT': 0,
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'VMEXIT_EPT_MISCONFIGURATION': 0,
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'VMEXIT_RDTSCP': 0,
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'VMEXIT_APICV_WRITE': 0,
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'VMEXIT_UNHANDLED': 0
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}
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IRQ_EXITS = {}
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def count_irq(info):
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vec = info[5:15]
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if IRQ_EXITS.has_key(vec):
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IRQ_EXITS[vec] += 1
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else:
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IRQ_EXITS[vec] = 1
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def parse_trace_data(ifile):
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"""parse the trace data file
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Args:
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ifile: input trace data file
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Return:
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None
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"""
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global TSC_BEGIN, TSC_END, TOTAL_NR_EXITS
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tsc_enter = 0L
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tsc_exit = 0L
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tsc_last_exit_period = 0L
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ev_id = ''
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last_ev_id = ''
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try:
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ifp = open(ifile)
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line = ifp.readline()
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# should preprocess to make sure first event is VM_ENTER
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while 1:
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line = ifp.readline()
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if line == '':
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ifp.close()
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break
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try:
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(cpuid, tsc, payload) = line.split(" | ")
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(ev_id, info) = payload.split(":")
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except ValueError, execp:
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print execp
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print line
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continue
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if ev_id == 'VM_ENTER':
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if TSC_BEGIN == 0:
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TSC_BEGIN = long(tsc)
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tsc_exit = long(tsc)
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TOTAL_NR_EXITS = 0
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tsc_enter = long(tsc)
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TSC_END = tsc_enter
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tsc_last_exit_period = tsc_enter - tsc_exit
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if tsc_last_exit_period != 0:
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TIME_IN_EXIT[last_ev_id] += tsc_last_exit_period
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elif ev_id == 'VM_EXIT':
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tsc_exit = long(tsc)
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TSC_END = tsc_exit
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TOTAL_NR_EXITS += 1
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elif ev_id.startswith('VMEXIT_'):
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if (ev_id == 'VMEXIT_EPT_VIOLATION'
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and (eval(info[6:24]) & 0x38) == 0x28):
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ev_id = 'VMEXIT_EPT_VIOLATION_GVT'
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if ev_id.startswith('VMEXIT_EX'):
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count_irq(info)
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NR_EXITS[ev_id] += 1
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last_ev_id = ev_id
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else:
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# skip the non-VMEXIT trace event
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pass
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except IOError as err:
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print "Input File Error: " + str(err)
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finally:
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if 'ifp' in locals():
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ifp.close()
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def generate_report(ofile, freq):
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""" generate analysis report
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Args:
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ofile: output report
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freq: CPU frequency of the device trace data from
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Return:
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None
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"""
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global TSC_BEGIN, TSC_END, TOTAL_NR_EXITS
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csv_name = ofile + '.csv'
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try:
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with open(csv_name, 'w') as filep:
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f_csv = csv.writer(filep)
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total_exit_time = 0L
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rt_cycle = TSC_END - TSC_BEGIN
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assert rt_cycle != 0, "total_run_time in cycle is 0,\
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tsc_end %d, tsc_begin %d"\
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% (TSC_END, TSC_BEGIN)
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rt_sec = float(rt_cycle) / (float(freq) * 1000 * 1000)
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for event in LIST_EVENTS:
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total_exit_time += TIME_IN_EXIT[event]
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print "Total run time: %d (cycles)" % (rt_cycle)
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print "CPU Freq: %f MHz)" % (freq)
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print "Total run time %d (Sec)" % (rt_sec)
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f_csv.writerow(['Run time(cycles)', 'Run time(Sec)', 'Freq(MHz)'])
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f_csv.writerow(['%d' % (rt_cycle),
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'%.3f' % (rt_sec),
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'%d' % (freq)])
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print "Event \tNR_Exit \tNR_Exit/Sec \tTime Consumed \tTime Percentage"
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f_csv.writerow(['Exit_Reason',
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'NR_Exit',
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'NR_Exit/Sec',
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'Time Consumed(cycles)',
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'Time Percentage'])
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for event in LIST_EVENTS:
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ev_freq = float(NR_EXITS[event]) / rt_sec
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pct = float(TIME_IN_EXIT[event]) * 100 / float(rt_cycle)
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print ("%s \t%d \t%.2f \t%d \t%2.2f" %
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(event, NR_EXITS[event], ev_freq, TIME_IN_EXIT[event], pct))
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row = [event, NR_EXITS[event], '%.2f' % ev_freq, TIME_IN_EXIT[event],
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'%2.2f' % (pct)]
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f_csv.writerow(row)
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ev_freq = float(TOTAL_NR_EXITS) / rt_sec
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pct = float(total_exit_time) * 100 / float(rt_cycle)
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print("Total \t%d \t%.2f \t%d \t%2.2f"
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% (TOTAL_NR_EXITS, ev_freq, total_exit_time, pct))
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row = ["Total", TOTAL_NR_EXITS, '%.2f' % ev_freq, total_exit_time,
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'%2.2f' % (pct)]
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f_csv.writerow(row)
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# insert a empty row to separate two tables
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f_csv.writerow([''])
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print "\nVector \t\tCount \tNR_Exit/Sec"
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f_csv.writerow(['Vector', 'NR_Exit', 'NR_Exit/Sec'])
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for e in IRQ_EXITS.keys():
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pct = float(IRQ_EXITS[e]) / rt_sec
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print "%s \t %d \t%.2f" % (e,IRQ_EXITS[e], pct)
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f_csv.writerow([e, IRQ_EXITS[e], '%.2f' % pct])
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except IOError as err:
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print "Output File Error: " + str(err)
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def get_freq(ifile):
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""" get cpu freq from the first line of trace file
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Args:
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ifile: input trace data file
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Return:
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cpu frequency
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"""
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try:
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ifp = open(ifile)
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line = ifp.readline()
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freq = float(line[10:])
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except IOError as err:
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print "Failed to get cpu freq"
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freq = 1920.00
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finally:
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if 'ifp' in locals():
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ifp.close()
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return freq
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def analyze_vm_exit(ifile, ofile):
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"""do the vm exits analysis
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Args:
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ifile: input trace data file
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ofile: output report file
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Return:
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None
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"""
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print("VM exits analysis started... \n\tinput file: %s\n"
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"\toutput file: %s.csv" % (ifile, ofile))
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freq = get_freq(ifile)
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parse_trace_data(ifile)
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# save report to the output file
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generate_report(ofile, freq)
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