Systems performance provides a different perspective for analysis and tuning, and can help you find performance wins for your #databases, applications, and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic. This talk summarizes six important areas of Linux systems performance in 50 minutes: observability tools, methodologies, benchmarking, profiling, tracing, and tuning. Included are recipes for Linux performance analysis and tuning (using #vmstat, #mpstat, #iostat, etc), overviews of complex areas including profiling (perf_events, flame graphs), static tracing (tracepoints), and dynamic tracing (#kprobes, #uprobes), and much advice about what is and isn’t important to learn. This talk is aimed at everyone: DBAs, developers, operations, etc, and in any environment running Linux, bare-metal or the cloud.
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