January 2023
Beginner to intermediate
940 pages
15h 53m
Japanese
Content preview from 詳解 システム・パフォーマンス 第2版
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付録Bsarのまとめ
本付録では、sar(1)（System Activity Reporter）の主要なオプションと指標をまとめた。どのオプションの下にどの指標があるかを思い出したいときに役に立つ。完全なリストは、manページを参照していただきたい。
sar(1) は、「4章 可観測性ツール」の「4.4 sar」で紹介し、あとの章（6章、7章、8章、9章、10章）では一部のオプションを示した。
| オプション | 指標 | 説明 |
|---|---|---|
-u-P ALL | %user %nice %system %iowait %steal %idle | CPUごとの使用率（-uはオプション） |
-u | %user %nice %system %iowait %steal %idle | CPUの使用率 |
-u ALL | ... %irq %soft %guest %gnice | CPU使用率の拡張情報 |
-m CPU-P ALL | MHz | CPUごとの周波数 |
-q | runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 blocked | CPUのランキューのサイズ |
-w | proc/s cswch/s | CPUのスケジューライベント |
-B | pgpgin/s pgpgout/s fault/s majflt/s pgfree/s pgscank/s pgscand/s pgsteal/s %vmeff | ページングに関する統計 |
-H | kbhugfree kbhugused %hugused | ヒュージページ |
-r | kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty | メモリの使用状況 |
-S | kbswpfree |
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