![]() ![]() These files are named in the following format: atop_ccyymmdd. The atop tool creates log files in /var/log/atop. Resolution Install atopįor installation instructions, see How do I configure the ATOP and SAR monitoring tools for my EC2 instance running Amazon Linux, RHEL, CentOS, or Ubuntu? Read atop report logs for historical review and analysis Historical performance data about processes can't be retrieved before the date of atop's installation. Note: Atop starts logging data only after it's installed. The stats are stored for 28 days, by default. The atop tool stays active as a background service while it records the stats, allowing for long-term server analysis. ![]() You can retrieve usage for CPU utilization, memory consumption, and disk I/O for each process and thread. ![]() This tool can also do real-time reporting. The atop tool is a performance monitoring tool that records historical resource usage for later analysis. ![]()
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