How can you improve OS performance when troubleshooting?

1. Keep your OS and drivers current for the latest features. 2. Watch CPU, memory, and disk usage for optimal performance. 3. Boost disk performance by removing unnecessary files. 4. Disable non-essential start-up programs for a quicker boot. 5. Regularly scan for malware to safeguard your system. 6. Minimize unnecessary visual effects to allocate resources wisely. 7. Explore RAM or SSD upgrades for improved performance. 8. Fine-tune power settings for efficiency and performance. 9. Check system logs for potential issues affecting performance. 10. Leverage the systems built in tools to pinpoint and resolve bottlenecks efficiently

In Linux systems: 1. Check disk inodes specially in systems with large number-small size files because sometimes you run out of inodes. 2. Check kernel limits and parameters like maximum number of open files and maximum number of processes, system globally and per user settings. 3. Check zombie processes and get rid of them. 4. Always fine-tune the system according to application running.

Kill the processes and stop/restart the applications that are over utilizing the server resources, causing load spike on server. Run the OS updates to make sure OS version is updated to its latest and stable version or minor version updates. Clean the garbage files, unwanted, temporary files that resides on server. Kill all the zombie processes. Scan the server to trace any malicious activity and quarantine it, if founds any. Disable the unwantedprograms at the startup. If possible, remove them if they are no longer needed. Add cron jobs or schedulers to scan the server to protect from malwares. Check at regular intervals for OS Updates. Install antivirus programs on Windows/Linux machines and keep the virus database updated.

1. Update: Keep OS and drivers current. 2. Monitor Resources: Check CPU, memory, and disk usage. 3. Clean Disk: Remove unnecessary files. 4. Startup Programs: Disable non-essential startup programs. 5. Malware Scan: Regularly scan for malware. 6. Visual Effects: Minimize or disable unnecessary effects. 7. Hardware Upgrade: Consider upgrading RAM or SSD. 8. Power Settings: Optimize for performance. 9. Event Logs: Review logs for issues. 10. Performance Tools: Use built-in tools to identify bottlenecks.

CPU: utilization/saturation/errors --- Useful commands :vmstat sar dstat pidstat ps mpstat top htop perf Memory capacity : utilization/saturation/errors --- Useful commands :free vmstat slabtop top htop dmesg Network Interfaces & Network controller: utilization/saturation/errors --- Useful commands : ip sar ifconfig netstat Storage device I/O : utilization/saturation/errors --- Useful commands : iostat sar pidtstat smartctl Storage capacity and Storage controller : utilization/saturation/errors --- Useful commands : swapon free free df du ncdu Using Tuned Profiles to match the service running on OS. Useful Links: search for "Overview of performance monitoring options On Redhat documentation"

Streamline and optimize software running on the system. Close unnecessary applications, disable startup programs, and prioritize critical processes to allocate resources efficiently.

To improve OS performance: Identify resource bottlenecks. Close unnecessary programs and processes. Update system software regularly. Check for malware and viruses. Optimize startup programs and system services. Manage disk space and perform regular cleanup. Consider upgrading hardware components. Adjust power settings for laptops. Disable unnecessary visual effects and animations. Update hardware drivers. Use performance monitoring tools. Check virtual memory settings. Review event logs for error messages. Optimize network settings if needed. Explore OS-specific optimization tools. Make changes one at a time and monitor the impact on performance.

The top ways to speed up Windows 10 Change your power settings Disable programs that run on startup Go to a previous restore point Use ReadyBoost to speed up disk caching Shut off Windows tips and tricks Stop OneDrive from syncing Use OneDrive files on-Demand Turn off search indexing Clean out your hard disk Clean out your Registry Disable shadows, animations and visual effects Disable transparency Turn on automated Windows maintenance Kill bloatware Defrag your hard disk Disable Game Mode Shut down and restart Windows

After building up the hardware the most important part is the selection of firmware and drivers. Both must be checked for known issues and/or compatibility issues or any behavior that can impact the system. The OS and the software installed in addition is another area for investigation and optimization. Especially if you have a lot of application loading at OS start up or the AV configuration is not optimally set, performance might be affected. It is important for the virtualized infrastructure to be configured perfectly and optimally so you can get the best performance. Examples are limitless so the best advice? … use known and stable software vendors, configure everything using best practices and double check everything. Tune it up.

-Running Windows Updates for the latest version of OS, security releases -clean disk drive by deleting programs and apps not needed

To know what and where can be cleaned you must have a good knowledge of the OS and applications you are using. The best advice for useless information is to clean up using automated tasks that knows what and where to clean occasionally. Read the vendors documentation and automate per case. It is important what type of storage device and type you are using, bandwidth, configuration and what kind of applications are using it. Is it a database, file share, hypervisor or else. Deduplication, data compression , RAID configurations. Everything matters.

Regularly remove unnecessary files, temporary data, and old applications to free up disk space. Use built-in tools or third-party applications to clean up and organize storage.

Use tools such as Disk Cleanup on Windows or CleanMyMac on macOS to remove unused files, system cache, old backups, and temporary files.

It is best practice to create a job in TS for disk cleanup once a week. Also check once if task is running perfectly or manually by treeview.

Regularly clean up temporary files, caches, and unnecessary files using disk cleanup tools. Ensure there is sufficient free space on the system drive for optimal performance.

Keep the operating system and software up-to-date to benefit from performance improvements, bug fixes, and security patches. Enable automatic updates for seamless maintenance.

Ensure your OS and drivers are up to date. Updates can fix bugs, improve performance, and close security vulnerabilities. Run a comprehensive antivirus scan. Malware can consume resources and slow down your system.

-Running Windows Updates to get the latest updates, version of the OS, Hardware driver updates, patches and latest security releases -Running the manufacturer ie: HP updater on the website or installed sw tool

Keep the system up to date with latest drivers firmware and monthly patches to avoid any issues and best stability may use vendor recommended software for upgrade.

Disable unnecessary programs from starting up with the operating system. Use the Task Manager (Windows) or Activity Monitor (macOS) to identify and manage startup applications. Update Operating System and Drivers: Keep the operating system and device drivers up to date with the latest updates and patches. Manufacturers regularly release updates to improve compatibility and performance.

Tweak system settings to suit performance requirements. Adjust power plans, graphics settings, and background processes to optimize performance without compromising functionality.

In Microsoft Windows, use "msconfig" tool to access and change system settings, work on the startup applications load, remove those that can be handled manually later, and use only extremely important ones. Learn how to use "Services" application, there you can deeply control which service needs to be automatically available and which needs to be stopped etc.

Expecially on production systems, we should focus on few, specific tasks, and tune the system accordingly. To keep track of changes and easily replicate them, it is essential to use a provisioning system like Ansible

Minimize or turn off visual effects, especially on older systems where GPU power is limited. Use the Task Manager (Windows) or Activity Monitor (macOS) to identify resource-heavy processes that can be closed or uninstalled.

Adjust the power and graphics settings also check for the background process for startup services for the better functionality.

Below toubleshooting steps need to be performed, 1. Identify the processes that are consuming High CPU, 2. Identify the threads within the process that are consuming High CPU 3. Need to capture thread dumps 4. Identify the lines of code that causing the CPU spike

Identify and address specific performance issues by diagnosing system logs, using diagnostic tools, and seeking online forums for relevant solutions. Resolve underlying problems to enhance overall system performance.

1) Ensure that your hardware meets the minimum requirements for the operating system and the applications you're running. 2) Use system monitoring tools to check CPU, memory, disk, and network usage. Identify any resource spikes or consistently high usage. 3) Use Task Manager (Windows), Activity Monitor (macOS), or system monitoring tools on Linux to identify processes consuming a significant amount of CPU, memory, or disk resources. Terminate or optimize resource-intensive processes. 4) Check system logs for error messages or warnings that may indicate hardware or software issues. Address any issues found in the logs.

As a last resort, resetting the OS or performing a clean installation can resolve persistent performance issues, but it's important to backup data before doing so.

Thou shall ensure that all systems are using an SSD. Thou shall not allow systems that are using an HDD. Thou shall ensure the systems have proper ventilation and have been dusted to eliminate thermal throttling as a potential performance bottleneck.

I have examples around me. People decided they do not want to troubleshoot performance issues so they changed the occupation field and became chefs, sailors, cinema operators, etc ... so that is also an option.

And last but not least. Understand the business and design the systems based on business requirements. While doing the system sizing ensure we are well aware of business growth with respect to time and size your infrastructure or systems in such a way that it can accommodate your business growth on your systems. Any infrastructure sizing depends how well you know the business and what are the points you consider when you did the planning.

First off, clearly describe your scope. Are we talking about server systems or user workstations. The two subjects have highly different operational envelops and processes.