https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, and data engineering — plus mindset essays on confidence, routines, health, and sport psychology. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 15 Aug 2026 00:00:00 GMT https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools.en https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools.en Interprets the numbers printed by top, vmstat, iostat, pidstat, sar and perf one column at a time. Covers which tool answers which question, which values create optical illusions, and the order in which to choose a tool using the USE method. Sat, 15 Aug 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) 리눅스성능모니터링운영sysstat명령어 https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools.ja https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools.ja top、vmstat、iostat、pidstat、sar、perf が出力する数字を 1 列ずつ解釈します。どのツールがどの質問に答えるのか、どの値が錯覚を起こすのか、USE 方法論でツールを選ぶ順番までを整理しました。 Sat, 15 Aug 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) 리눅스성능모니터링운영sysstat명령어 https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools https://www.youngju.dev/blog/linux/2026-08-15-guide-linux-performance-tools top, vmstat, iostat, pidstat, sar, perf가 찍어 주는 숫자를 한 열씩 해석합니다. 어떤 도구가 어떤 질문에 답하는지, 어떤 값이 착시를 일으키는지, USE 방법론으로 도구를 고르는 순서까지 정리했습니다. Sat, 15 Aug 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) 리눅스성능모니터링운영sysstat명령어