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Done automation for scheduler workflow. #2723

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173 changes: 173 additions & 0 deletions cpu/log_generator.py
Original file line number Diff line number Diff line change
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#!/usr/bin/env python

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# See LICENSE for more details.
#
# Copyright: 2023 IBM
# Author: Samir A Mulani <[email protected]>


import os
from avocado import Test
from avocado.utils import process
from avocado.utils import git
from avocado.utils.software_manager.manager import SoftwareManager
from avocado.utils import linux_modules


class log_generator(Test):
def setUp(self):
"""
Here in this test case we are running any cpu intensive workload
and capturing the disfferent logs,
Ex: perf_stat, strace and sched_scoreboard etc.
"""
pkgs = []
directory_name = "sched-scoreboard"
self.sched_scoreboard_dir = os.path.expanduser(f"~/{directory_name}")
self.uname = linux_modules.platform.uname()[2]
self.kernel_ver = "kernel-devel-%s" % self.uname
smm = SoftwareManager()
pkgs.extend(["strace", "perf", "trace-cmd", "git", "bpftrace"])
for pkg in pkgs:
if not smm.check_installed(pkg) and not smm.install(pkg):
self.cancel("Not able to install %s" % pkg)

self.user_command = self.params.get('user_command', default="sleep 10")
self.repeat = int(self.params.get('repeat', default="10"))

cmd = "command -v bpftrace &>/dev/null"
info = process.system_output(cmd, ignore_status=True)
if not info:
self.cancel(
"bpftrace is not installed. Please install it \
for sched-scoreboard to work.")

if os.path.exists(self.sched_scoreboard_dir) and os.path.isdir(
self.sched_scoreboard_dir):
os.chdir(self.sched_scoreboard_dir)
cmd = "git pull"
process.run(cmd, ignore_status=True, sudo=True, shell=True)
else:
os.mkdir(self.sched_scoreboard_dir)
os.chdir(self.sched_scoreboard_dir)
git.get_repo('https://github.com/AMDESE/sched-scoreboard.git',
branch='main',
destination_dir=self.sched_scoreboard_dir)

# Create symbolic link to bpftrace
cmd = 'ln -s "$(which bpftrace)" "%s/bpftrace"' % \
(self.sched_scoreboard_dir)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

def test_sched_scoreboard_setup(self):
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@vishalc-ibm vishalc-ibm Nov 29, 2023

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Please rename this method to test_run_with_time_repeat

"""_summary_

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This comment can be removed

Here in this test case we are cloning the sched_scoreboard
repo and prepareing the sched_scoreboard to run.
"""
scoreboard_setup_log_file = self.logdir + "/sched_scoreboard_setup"
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This part will change to...

time_log_file = self.logdir + "/time"
os.mkdir(time_log_file)
log_file = "%s/time_command_output_%s.log" % (
                    time_log_file, self.kernel_ver)

os.mkdir(scoreboard_setup_log_file)

log_file = "%s/sched_scoreboard_command_output_%s.log" % (
scoreboard_setup_log_file, self.kernel_ver)
cmd = 'echo "Using command: %s >> %s" 2>&1' % (
self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'lscpu >> "%s" 2>&1' % (log_file)
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This test need not run lscpu
This should get captured by sysinfo utility
(preferably per-job)

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Also, If we can collect other system level data such as lscpu, mpstat -P ALL 1 1, numactl -H, uptime etc. apart from all other static data that sysinfo utility already collects

Also as part of sysinfo utility's pre, create a backup /sys/kernel/debug/sched of this directory.

process.run(cmd, ignore_status=True, sudo=True, shell=True)
cmd = 'echo >> "%s" 2>&1' % (log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

# Execute the command and append the output to the log file
for i in range(self.repeat):
cmd = 'eval "$user_command" >> "%s" 2>&1' % (log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'echo >> "%s" 2>&1' % (log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

for i in range(self.repeat):
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This method sets up sched-scoreboard repo and later runs the user supplied command through time utility. Please refactor into two seperate methods.

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setup of sched-scoreboard repo can be done inside setUp() method

# Execute the command and append the output to the log file
cmd = '/usr/bin/time -v $(echo %s) >> "%s" 2>&1' % (
self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)
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        process.run(cmd, ignore_status=True, sudo=True, shell=True)
        cmd = 'echo >> "%s" 2>&1' % (log_file)
        process.run(cmd, ignore_status=True, sudo=True, shell=True)
        # Execute the command and append the output to the log file
        for i in range(self.repeat):
            cmd = 'eval "$user_command" >> "%s" 2>&1' % (log_file)
            process.run(cmd, ignore_status=True, sudo=True, shell=True)
        cmd = 'echo >> "%s" 2>&1' % (log_file)
        process.run(cmd, ignore_status=True, sudo=True, shell=True)
        for i in range(self.repeat):
            # Execute the command and append the output to the log file
            cmd = '/usr/bin/time -v $(echo %s) >> "%s" 2>&1' % (
                self.user_command, log_file)
            process.run(cmd, ignore_status=True, sudo=True, shell=True)

Please refactor this part to separate test_* methods as following:

  • test_run_command: This method would run user_command one time
  • test_run_command_with_profilers: This method would run user_command one time but with profilers enabled. (using sysinfo utility to run profilers per-test but for test_run_command_with_profilers only)
  • test_run_command_repeat: This method would run user_command repeat times

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  • test_run_with_time_repeat: Will just be another test method to run the user_command through time command repeated repeat times


def test_strace_cmd(self):
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s/test_strace_cmd/test_run_with_strace_repeat/

"""
Run the strace command
"""
strace_log_file = self.logdir + "/strace"
os.mkdir(strace_log_file)

log_file = "%s/strace_command_output_%s.log" % (
strace_log_file, self.kernel_ver)
cmd = 'strace -c $(echo %s) >> "%s" 2>&1' % (self.user_command,
log_file)
for i in range(2):
process.run(cmd, ignore_status=True, sudo=True, shell=True)

def test_perf_stat_cmd(self):
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s/test_perf_stat_cmd/test_run_with_perf_stat_repeat/

"""_summary_
Run the workload command with perf stat.
"""
perf_log_file = self.logdir + "/perf_stat"
os.mkdir(perf_log_file)

log_file = "%s/perf_stat_command_output_%s.log" % (
perf_log_file, self.kernel_ver)
cmd = 'perf stat -r %d -d -d -d -- $(echo %s) >> "%s" 2>&1' % (
self.repeat, self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'echo >> "%s" 2>&1' % (log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'perf stat -r %d -d -d -d --all-kernel -- $(echo %s) \
>> "%s" 2>&1' % (
self.repeat, self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'echo >> "%s" 2>&1' % (log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

cmd = 'perf stat -r %d -d -d -d --all-user -- $(echo %s) \
>> "%s" 2>&1' % (
self.repeat, self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

def test_sched_scoreboard_cmd(self):

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s/test_sched_scoreboard_cmd/test_run_with_sched_scoreboard/

"""_summary_
Here we are running the sched_scoreboard to capture and report
all the data related to the Linux Kernel Scheduler.
"""
sched_log_file = self.logdir + "/sched_scoreboard"
os.mkdir(sched_log_file)
log_file = "%s/sched_scoreboard_command_output_%s.log" % (
sched_log_file, self.kernel_ver)
cmd = 'bash %s/sched-scoreboard.sh --logdir "%s" -e -d --workload \
"%s" >> "%s" 2>&1' % (self.sched_scoreboard_dir,
sched_log_file, self.user_command,
log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)

def test_trace_cmd(self):

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s/test_trace_cmd/test_run_with_trace_cmd/

"""_summary_
Here we are running the workload command with trace command.
"""
trace_log_file = self.logdir + "/trace"
os.mkdir(trace_log_file)

log_file = "%s/trace_command_output_%s.dat" % (
trace_log_file, self.kernel_ver)
cmd = 'trace-cmd record -e sched -o "%s" -- $(echo %s) >> "%s" \
2>&1' % (trace_log_file, self.user_command, log_file)
process.run(cmd, ignore_status=True, sudo=True, shell=True)
2 changes: 2 additions & 0 deletions cpu/log_generator.py.data/log_generator.yaml
Original file line number Diff line number Diff line change
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user_command:
repeat:
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