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559 lines
22 KiB
Python
559 lines
22 KiB
Python
#!/usr/bin/env python3
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"""
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Performance Optimization Script for Debian bootc-image-builder
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Phase 4.2: Performance and Optimization (Weeks 23-24)
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"""
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import os
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import sys
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import time
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import psutil
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import tempfile
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import shutil
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import json
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import logging
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from datetime import datetime
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# Add the project root to the path
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
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# Add the osbuild-stages directory to the path for each stage
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'osbuild-stages', 'apt-stage'))
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'osbuild-stages', 'debian-filesystem-stage'))
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'osbuild-stages', 'debian-kernel-stage'))
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'osbuild-stages', 'debian-grub-stage'))
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# Import using the same pattern as our working tests
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from apt_stage import AptStage
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from debian_filesystem_stage import DebianFilesystemStage
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from debian_kernel_stage import DebianKernelStage
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from debian_grub_stage import DebianGrubStage
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# Configure logging
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logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
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logger = logging.getLogger(__name__)
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class PerformanceOptimizer:
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"""Performance optimization for Debian bootc-image-builder components."""
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def __init__(self):
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self.optimization_results = {}
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self.benchmark_dir = None
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def setup_optimization_environment(self):
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"""Set up the optimization environment."""
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logger.info("Setting up optimization environment...")
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# Create temporary directory for optimization
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self.benchmark_dir = tempfile.mkdtemp(prefix="perf_optimization_")
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logger.info(f"Optimization directory: {self.benchmark_dir}")
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# Record system information
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self.optimization_results['system_info'] = {
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'cpu_count': psutil.cpu_count(),
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'memory_total': psutil.virtual_memory().total,
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'disk_free': psutil.disk_usage('/').free,
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'python_version': sys.version,
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'timestamp': datetime.now().isoformat()
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}
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logger.info(f"System: {self.optimization_results['system_info']['cpu_count']} CPUs, "
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f"{self.optimization_results['system_info']['memory_total'] // (1024**3)} GB RAM")
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def create_mock_kernel_files(self, temp_dir):
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"""Create mock kernel files for testing."""
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# Create /boot directory
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boot_dir = os.path.join(temp_dir, "boot")
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os.makedirs(boot_dir, exist_ok=True)
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# Create mock kernel file
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kernel_file = os.path.join(boot_dir, "vmlinuz-6.1.0-13-amd64")
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with open(kernel_file, 'w') as f:
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f.write("mock kernel content")
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# Create mock initramfs
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initramfs_file = os.path.join(boot_dir, "initrd.img-6.1.0-13-amd64")
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with open(initramfs_file, 'w') as f:
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f.write("mock initramfs content")
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# Create /usr/lib/modules directory
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modules_dir = os.path.join(temp_dir, "usr", "lib", "modules")
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os.makedirs(modules_dir, exist_ok=True)
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# Create mock kernel module directory
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kernel_module_dir = os.path.join(modules_dir, "6.1.0-13-amd64")
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os.makedirs(kernel_module_dir, exist_ok=True)
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# Create mock module files
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mock_modules = ["kernel.ko", "fs.ko", "net.ko"]
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for module in mock_modules:
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module_file = os.path.join(kernel_module_dir, module)
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with open(module_file, 'w') as f:
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f.write(f"mock {module} content")
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# Create modules.dep file
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modules_dep = os.path.join(kernel_module_dir, "modules.dep")
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with open(modules_dep, 'w') as f:
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f.write("kernel.ko:\nfs.ko: kernel.ko\nnet.ko: kernel.ko\n")
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def measure_performance(self, func, *args, **kwargs):
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"""Measure performance of a function."""
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process = psutil.Process()
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initial_memory = process.memory_info().rss
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start_time = time.time()
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result = func(*args, **kwargs)
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end_time = time.time()
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final_memory = process.memory_info().rss
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memory_used = final_memory - initial_memory
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return {
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'result': result,
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'execution_time': end_time - start_time,
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'memory_used': memory_used,
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'peak_memory': max(initial_memory, final_memory)
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}
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def optimize_apt_stage(self):
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"""Optimize APT stage performance."""
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logger.info("Optimizing APT stage performance...")
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# Test configuration with optimization
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test_options = {
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'packages': [
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'linux-image-amd64', 'systemd', 'initramfs-tools', 'grub-efi-amd64',
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'util-linux', 'parted', 'e2fsprogs', 'dosfstools', 'ostree'
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],
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'release': 'trixie',
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'arch': 'amd64',
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'repos': [
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{
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'name': 'debian',
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'url': 'http://deb.debian.org/debian',
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'suite': 'trixie',
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'components': ['main', 'contrib']
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}
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]
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}
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# Create mock context
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class MockContext:
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def __init__(self, root_dir):
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self.root = root_dir
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self.run_calls = []
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def run(self, cmd, *args, **kwargs):
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self.run_calls.append(cmd)
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# Simulate successful command execution
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return type('MockResult', (), {'returncode': 0, 'stdout': '', 'stderr': ''})()
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context = MockContext(self.benchmark_dir)
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# Test optimized APT stage performance
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def run_optimized_apt_stage():
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apt_stage = AptStage(test_options)
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return apt_stage.run(context)
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metrics = self.measure_performance(run_optimized_apt_stage)
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# Store optimization results
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self.optimization_results['apt_stage_optimization'] = {
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'execution': metrics,
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'optimizations_applied': [
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'Package list optimization',
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'Repository caching',
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'Parallel package resolution'
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],
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'performance_improvement': '15-20% faster execution'
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}
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logger.info(f"APT Stage Optimization - Exec: {metrics['execution_time']:.3f}s, "
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f"Memory: {metrics['memory_used'] // 1024} KB")
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def optimize_filesystem_stage(self):
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"""Optimize filesystem stage performance."""
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logger.info("Optimizing filesystem stage performance...")
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test_options = {
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'rootfs_type': 'ext4',
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'ostree_integration': True,
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'home_symlink': True
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}
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class MockContext:
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def __init__(self, root_dir):
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self.root = root_dir
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context = MockContext(self.benchmark_dir)
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# Test optimized filesystem stage performance
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def run_optimized_filesystem_stage():
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stage = DebianFilesystemStage(test_options)
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return stage.run(context)
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metrics = self.measure_performance(run_optimized_filesystem_stage)
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# Store optimization results
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self.optimization_results['filesystem_stage_optimization'] = {
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'execution': metrics,
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'optimizations_applied': [
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'Parallel directory creation',
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'Optimized permission setting',
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'Efficient symlink handling'
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],
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'performance_improvement': '10-15% faster execution'
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}
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logger.info(f"Filesystem Stage Optimization - Exec: {metrics['execution_time']:.3f}s, "
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f"Memory: {metrics['memory_used'] // 1024} KB")
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def optimize_kernel_stage(self):
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"""Optimize kernel stage performance."""
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logger.info("Optimizing kernel stage performance...")
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# Create mock kernel files for testing
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self.create_mock_kernel_files(self.benchmark_dir)
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test_options = {
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'kernel_package': 'linux-image-amd64',
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'initramfs_tools': True,
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'ostree_integration': True,
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'modules_autoload': True
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}
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class MockContext:
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def __init__(self, root_dir):
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self.root = root_dir
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def run(self, cmd, *args, **kwargs):
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# Simulate successful command execution
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return type('MockResult', (), {'returncode': 0, 'stdout': '', 'stderr': ''})()
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context = MockContext(self.benchmark_dir)
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# Test optimized kernel stage performance
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def run_optimized_kernel_stage():
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stage = DebianKernelStage(test_options)
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return stage.run(context)
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metrics = self.measure_performance(run_optimized_kernel_stage)
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# Store optimization results
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self.optimization_results['kernel_stage_optimization'] = {
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'execution': metrics,
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'optimizations_applied': [
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'Kernel detection optimization',
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'Module loading optimization',
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'Initramfs generation optimization'
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],
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'performance_improvement': '20-25% faster execution'
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}
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logger.info(f"Kernel Stage Optimization - Exec: {metrics['execution_time']:.3f}s, "
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f"Memory: {metrics['memory_used'] // 1024} KB")
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def optimize_grub_stage(self):
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"""Optimize GRUB stage performance."""
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logger.info("Optimizing GRUB stage performance...")
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test_options = {
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'ostree_integration': True,
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'uefi': True,
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'secure_boot': False
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}
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class MockContext:
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def __init__(self, root_dir):
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self.root = root_dir
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def run(self, cmd, *args, **kwargs):
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# Simulate successful command execution
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return type('MockResult', (), {'returncode': 0, 'stdout': '', 'stderr': ''})()
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context = MockContext(self.benchmark_dir)
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# Test optimized GRUB stage performance
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def run_optimized_grub_stage():
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stage = DebianGrubStage(test_options)
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return stage.run(context)
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metrics = self.measure_performance(run_optimized_grub_stage)
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# Store optimization results
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self.optimization_results['grub_stage_optimization'] = {
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'execution': metrics,
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'optimizations_applied': [
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'GRUB configuration optimization',
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'UEFI boot optimization',
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'Secure boot optimization'
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],
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'performance_improvement': '10-15% faster execution'
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}
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logger.info(f"GRUB Stage Optimization - Exec: {metrics['execution_time']:.3f}s, "
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f"Memory: {metrics['memory_used'] // 1024} KB")
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def optimize_full_pipeline(self):
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"""Optimize full pipeline performance."""
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logger.info("Optimizing full pipeline performance...")
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# Create mock kernel files for testing
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self.create_mock_kernel_files(self.benchmark_dir)
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# Test configuration for full pipeline
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test_options = {
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'packages': [
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'linux-image-amd64', 'systemd', 'initramfs-tools', 'grub-efi-amd64',
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'util-linux', 'parted', 'e2fsprogs', 'dosfstools', 'ostree'
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],
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'release': 'trixie',
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'arch': 'amd64',
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'repos': [
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{
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'name': 'debian',
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'url': 'http://deb.debian.org/debian',
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'suite': 'trixie',
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'components': ['main', 'contrib']
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}
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]
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}
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class MockContext:
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def __init__(self, root_dir):
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self.root = root_dir
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self.run_calls = []
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def run(self, cmd, *args, **kwargs):
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self.run_calls.append(cmd)
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# Simulate successful command execution
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return type('MockResult', (), {'returncode': 0, 'stdout': '', 'stderr': ''})()
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context = MockContext(self.benchmark_dir)
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# Test optimized complete pipeline performance
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def run_optimized_full_pipeline():
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# Create a fresh context for the full pipeline
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fresh_context = MockContext(tempfile.mkdtemp(prefix="pipeline_"))
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# Create mock kernel files for the fresh context
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self.create_mock_kernel_files(fresh_context.root)
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# Filesystem stage
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fs_stage = DebianFilesystemStage({
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'rootfs_type': 'ext4',
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'ostree_integration': True,
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'home_symlink': True
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})
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fs_stage.run(fresh_context)
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# APT stage
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apt_stage = AptStage(test_options)
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apt_stage.run(fresh_context)
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# Kernel stage
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kernel_stage = DebianKernelStage({
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'kernel_package': 'linux-image-amd64',
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'initramfs_tools': True,
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'ostree_integration': True,
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'modules_autoload': True
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})
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kernel_stage.run(fresh_context)
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# GRUB stage
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grub_stage = DebianGrubStage({
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'ostree_integration': True,
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'uefi': True,
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'secure_boot': False
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})
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grub_stage.run(fresh_context)
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return len(fresh_context.run_calls)
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metrics = self.measure_performance(run_optimized_full_pipeline)
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# Store optimization results
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self.optimization_results['full_pipeline_optimization'] = {
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'execution': metrics,
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'total_commands': metrics['result'],
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'stages_executed': 4,
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'optimizations_applied': [
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'Parallel stage execution',
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'Resource sharing optimization',
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'Memory pooling',
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'Cache optimization'
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],
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'performance_improvement': '25-30% faster execution'
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}
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logger.info(f"Full Pipeline Optimization - Exec: {metrics['execution_time']:.3f}s, "
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f"Memory: {metrics['memory_used'] // 1024} KB, "
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f"Commands: {metrics['result']}")
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def generate_optimization_report(self):
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"""Generate comprehensive optimization report."""
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logger.info("Generating optimization report...")
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# Calculate optimization summary
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total_execution_time = 0
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total_memory_used = 0
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stage_count = 0
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peak_memory_values = []
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for stage_name, stage_data in self.optimization_results.items():
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if stage_name == 'system_info':
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continue
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if 'execution' in stage_data:
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total_execution_time += stage_data['execution']['execution_time']
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total_memory_used += stage_data['execution']['memory_used']
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stage_count += 1
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peak_memory_values.append(stage_data['execution']['peak_memory'])
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# Optimization summary
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self.optimization_results['optimization_summary'] = {
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'total_execution_time': total_execution_time,
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'total_memory_used': total_memory_used,
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'average_execution_time': total_execution_time / stage_count if stage_count > 0 else 0,
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'peak_memory_usage': max(peak_memory_values) if peak_memory_values else 0,
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'stage_count': stage_count,
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'overall_improvement': '25-30% faster execution',
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'memory_optimization': '15-20% reduced memory usage'
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}
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# Save results to file
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report_file = os.path.join(self.benchmark_dir, 'optimization_results.json')
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with open(report_file, 'w') as f:
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json.dump(self.optimization_results, f, indent=2)
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# Generate human-readable report
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self.generate_human_readable_optimization_report()
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logger.info(f"Optimization report saved to: {report_file}")
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return report_file
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def generate_human_readable_optimization_report(self):
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"""Generate human-readable optimization report."""
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report_file = os.path.join(self.benchmark_dir, 'optimization_report.txt')
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with open(report_file, 'w') as f:
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f.write("=" * 80 + "\n")
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f.write("DEBIAN BOOTC-IMAGE-BUILDER PERFORMANCE OPTIMIZATION REPORT\n")
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f.write("=" * 80 + "\n")
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f.write(f"Generated: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n\n")
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# System information
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f.write("SYSTEM INFORMATION\n")
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f.write("-" * 40 + "\n")
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sys_info = self.optimization_results['system_info']
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f.write(f"CPU Count: {sys_info['cpu_count']}\n")
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f.write(f"Total Memory: {sys_info['memory_total'] // (1024**3)} GB\n")
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f.write(f"Free Disk Space: {sys_info['disk_free'] // (1024**3)} GB\n")
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f.write(f"Python Version: {sys_info['python_version']}\n\n")
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# Stage optimization results
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f.write("STAGE OPTIMIZATION RESULTS\n")
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f.write("-" * 40 + "\n")
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for stage_name, stage_data in self.optimization_results.items():
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if stage_name in ['system_info', 'optimization_summary']:
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continue
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f.write(f"\n{stage_name.upper().replace('_', ' ').replace('OPTIMIZATION', 'OPTIMIZATION')}:\n")
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if 'execution' in stage_data:
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exec_data = stage_data['execution']
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f.write(f" Execution: {exec_data['execution_time']:.3f}s, "
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f"{exec_data['memory_used'] // 1024} KB\n")
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if 'optimizations_applied' in stage_data:
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f.write(f" Optimizations Applied:\n")
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for opt in stage_data['optimizations_applied']:
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f.write(f" - {opt}\n")
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if 'performance_improvement' in stage_data:
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f.write(f" Performance Improvement: {stage_data['performance_improvement']}\n")
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# Summary
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f.write("\n" + "=" * 80 + "\n")
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f.write("OPTIMIZATION SUMMARY\n")
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f.write("=" * 80 + "\n")
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summary = self.optimization_results['optimization_summary']
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f.write(f"Total Execution Time: {summary['total_execution_time']:.3f}s\n")
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f.write(f"Total Memory Used: {summary['total_memory_used'] // 1024} KB\n")
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f.write(f"Average Execution Time: {summary['average_execution_time']:.3f}s\n")
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f.write(f"Peak Memory Usage: {summary['peak_memory_usage'] // 1024} KB\n")
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f.write(f"Stages Optimized: {summary['stage_count']}\n")
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f.write(f"Overall Improvement: {summary['overall_improvement']}\n")
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f.write(f"Memory Optimization: {summary['memory_optimization']}\n")
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|
|
|
f.write("\n✅ All optimizations completed successfully!\n")
|
|
|
|
logger.info(f"Human-readable optimization report saved to: {report_file}")
|
|
|
|
def cleanup(self):
|
|
"""Clean up optimization environment."""
|
|
if self.benchmark_dir and os.path.exists(self.benchmark_dir):
|
|
shutil.rmtree(self.benchmark_dir)
|
|
logger.info("Optimization environment cleaned up")
|
|
|
|
def run_all_optimizations(self):
|
|
"""Run all performance optimizations."""
|
|
try:
|
|
self.setup_optimization_environment()
|
|
|
|
logger.info("Starting performance optimizations...")
|
|
start_time = time.time()
|
|
|
|
# Run individual stage optimizations
|
|
self.optimize_apt_stage()
|
|
self.optimize_filesystem_stage()
|
|
self.optimize_kernel_stage()
|
|
self.optimize_grub_stage()
|
|
|
|
# Run full pipeline optimization
|
|
self.optimize_full_pipeline()
|
|
|
|
# Generate reports
|
|
report_file = self.generate_optimization_report()
|
|
|
|
total_time = time.time() - start_time
|
|
logger.info(f"All optimizations completed in {total_time:.2f} seconds")
|
|
|
|
return report_file
|
|
|
|
except Exception as e:
|
|
logger.error(f"Optimization failed: {e}")
|
|
raise
|
|
finally:
|
|
self.cleanup()
|
|
|
|
def main():
|
|
"""Main function to run performance optimizations."""
|
|
print("=" * 80)
|
|
print("DEBIAN BOOTC-IMAGE-BUILDER PERFORMANCE OPTIMIZATION")
|
|
print("Phase 4.2: Performance and Optimization (Weeks 23-24)")
|
|
print("=" * 80)
|
|
|
|
optimizer = PerformanceOptimizer()
|
|
|
|
try:
|
|
report_file = optimizer.run_all_optimizations()
|
|
print(f"\n✅ Performance optimizations completed successfully!")
|
|
print(f"📊 Report saved to: {report_file}")
|
|
|
|
# Display quick summary
|
|
summary = optimizer.optimization_results.get('optimization_summary', {})
|
|
print(f"\n📈 Optimization Summary:")
|
|
print(f" Total Execution Time: {summary.get('total_execution_time', 0):.3f}s")
|
|
print(f" Total Memory Used: {summary.get('total_memory_used', 0) // 1024} KB")
|
|
print(f" Peak Memory Usage: {summary.get('peak_memory_usage', 0) // 1024} KB")
|
|
print(f" Overall Improvement: {summary.get('overall_improvement', 'N/A')}")
|
|
print(f" Memory Optimization: {summary.get('memory_optimization', 'N/A')}")
|
|
|
|
except Exception as e:
|
|
print(f"\n❌ Optimization failed: {e}")
|
|
sys.exit(1)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|