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電力管理ガイド 1. 概要 Expand section "1. 概要" Collapse section "1. 概要" 1.1. 電力管理の重要性 1.2. 電力管理の基礎 2. 電力管理の監査と分析 Expand section "2. 電力管理の監査と分析" Collapse section "2. 電力管理の監査と分析" 2.1. 監査と分析の概要 2.2. PowerTOP 2.3. Diskdevstat と netdevstat 2.4. Battery Life Tool Kit 2.5. Tuned および ktune Expand section "2.5. Tuned および ktune" Collapse section "2.5. Tuned および ktune" 2.5.1. tuned.conf ファイル 2.5.2. Tuned-adm 2.6. Devi
Performance Tuning Red Hat Enterprise Linux 6 Jeremy Eder, Sr. Software Engineer Performance Engineering Jeremy Eder2 Agenda Jeremy Eder3 (Real) Agenda... Performance Tuning Theory RHEL6 Performance Improvements tuned cgroups Architecture
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Deeper C states and increased latency
Today it is common to describe processor power consumption and thermal management state by CX, states where X can be number 0 to n (n depends on the CPU type). In the C0 state the CPU is running. In C-states higher than 0 the CPU is stopped (sleeps). Higher C states means more power savings but also longer delay when returning to C0 (higher latency). ACPI specification describes C0 - C3, but recen
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