Performance Analysis and Tuning of Red Hat Enterprise Linux

Explore performance analysis and tuning techniques for Red Hat Enterprise Linux versions 5, 6, and 7 beta systems in this comprehensive conference talk from the 2014 Red Hat Summit. Discover how to configure systems for optimal performance across various applications, evaluate heavily loaded systems, and maximize their efficiency. Learn about hardware features affecting performance and how the Red Hat Enterprise Linux kernel leverages them. Gain insights into the latest performance analysis tools and techniques for identifying bottlenecks in system and application performance. Understand system tuning parameters and their application in resolving performance issues for database servers, Internet servers, and financial applications. Delve into topics such as RHEL performance evolution, benchmark results, NUMA scheduling, resource management using cgroups, scheduler tunables, and hugepages/VM tuning.

Intro
Red Hat Enterprise Linux Performance Evolution
Industry Standard Benchmark Results 4/2014
RHEL Benchmark platform of choice 2014
RHEL Performance Coverage
Red Hat Performance RHEL7 RC1 vs R6.5
Tuned: Storage Performance Boost
Tuned: Network Throughput Boost
Tuned: Network Latency Performance Boost
Tuned: Profile Inheritance
RHEL "tuned" package
RHEL NUMA Scheduler
Automatic NUMA Balancing - balanced
NUMA Nodes and Zones
Tools to display CPU and Memory (NUMA)
RHEL7 Database Performance Improvements Autonuma-Balance
Autonuma-balance and numad aligns process memory and CPU threads within nodes
numastat shows guest memory alignment
Resource Management using cgroups Ability to manage large system resources effectively Control Group (Cgroups) for CPU/Memory/Network Disk
C-group Dynamic resource control
Cgroup default mount points RHELG
Cgroup how-to
Correct bindings
cpu.shares default
Cgroup node migration
Cgroup automation with Libvirt and Docker
RHEL Scheduler Tunables
Finer Grained Scheduler Tuning
Load Balancing
fork() behavior
RHEL Hugepages/ VM Tuning Standard HugePages 2MB
2MB standard Hugepages
1GB Hugepages