process,memory,disk utils

1.[Proc] $ top, $ lsof, $ strace, $ ltrace, /usr/bin/time

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2.[Proc] Priority, nice , $ ps, $pstree,$ pgrep, $ renice

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3.[Proc] Load Average (부하 평균), $ uptime

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4.[Memory] /proc/meminfo, 메모리 원리, 페이지 폴트, 검토방법

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5.$ vmstat: CPU, 메모리 성능 검토

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6.$ iostat, $ iotop, $ pidstat : I/O 모니터링

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7.smartctl: Disk Spec check

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9.ramdisk 사용하기 (linux)

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