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
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 and Deep-dive CPU Performance Tuning/Power Management Memory/NUMA Performance Tuning Network Performance Tuning Jeremy Eder4 Performance Tuning Fo
Chapter 4. CPU | Red Hat Product Documentation
The term CPU, which stands for central processing unit, is a misnomer for most systems, since central implies single, whereas most modern systems have more than one processing unit, or core. Physically, CPUs are contained in a package attached to a motherboard in a socket. Each socket on the motherboard has various connections: to other CPU sockets, memory controllers, interrupt controllers, and o
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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