HP-UX performance and tuning

Prerequisites

• HP-UX System and Network Administration I (H3064S) and HP-UX System and Network Administration II (H3065S) or equivalent experience.
• Inside the HP-UX Operating System (H5081S) is advantageous.

Audience

Experienced HP-UX system and network administrators

Ways to save

Course objectives

• Identify tools used to monitor HP-UX performance
• Identify bottlenecks and potential problems
• Determine appropriate remedial actions to take

Next Steps

• HP Systems Insight Manager: HP-UX (HB508S)
• Ignite-UX (H1978S)
• HP-UX Resource Management: WLM & PRM (U5447S)
• POSIX Shell Programming (H4322S)

Benefits to you

• Effectively utilize the range of performance tools that are available to you.
• Learn how to regularly monitor your systems and quickly recognize problems.
• Optimize your systems by identifying and removing performance bottlenecks.
• Effectively allocate resources (such as CPU, memory, disk I/O bandwidth) among your critical and lower priority users and applications.
• Deliver a guaranteed level of application performance to your end users.

Course outline

• Introduction
• What is a performance problem
• The "System centric" view of performance
• Measuring performance
• The first rule of interpreting metrics
• Types of performance
• Multiprocessor scaling
• Bottlenecks
• Baseline
• Queuing and response times
• Queuing theory and performance
• Increasing CPU counts and utilization
• Tools
• Performance tools
• Sources of data
• Glance
• GPM or as it is now known, xglance
• Customizing lists in GPM
• Alarms
• HP Performance Agent and Manager
• HP Performance Manager
• HP PM web-based reports
• Caliper
• Using caliper
• CPUs and Performance
• Types of CPU bottlenecks
• CPUs and performance
• Tuning for data latency
• Performance and system size
• Memory types on cell based servers
• Configuring and Using CLM
• Launch policies
• Address translation delays
• Virtual to physical address translation
• Measuring TLB misses
• Tuning for TLB misses
• Variable page size kernel parameters
• The change attributes command
• Hyperthreading
• Shared caches
• Compiler optimizations
• CPUs and performance
• Process Resource Manager
• Process management
• The HP-UX operating system
• Virtual address process space
• Physical process components
• Life cycle of a process and process states
• CPU scheduler
• Context switching, priority queues and time share
• Parent-child process relationship
• CPU management
• Processor module
• Symmetric multiprocessing
• CPU processor
• CPU and TLB cache
• TLB, Cache, and Memory
• HP-UX 11.00 performance optimized page sizes
• CPU metrics to monitor system-wide and per process
• glance reports and timex command
• Activities that utilize the CPU
• Tuning a CPU-bound system
• Processor affinity
• IO Performance
• IO and performance
• Causes of IO performance problems
• The system call interface
• System calls take time
• The filesystem layer
• VxFS performance topics
• Defragmenting OnlineJFS filesystems
• Understanding your IO workload
• Caching controls
• DSYNC
• Locks on kernel data structures
• Performance implications of locks
• Large directories, improving performance
• Buffered IO, reading ahead
• Writing behind at 11.23 and earlier
• Writing behind with HP-UX 11.31
• Direct IO
• Caching
• Caching improves performance
• Caching improves performance when
• Tuning the cache
• Volume managers
• Mirroring and performance
• Striping
• Multipathing
• Load balancing policies
• Device caching
• IMemory
• System memory management
• When does memory affect performance
• Memory usage
• Virtual memory
• Memory allocation
• vhand (the page daemon)
• Memory Resource Groups
• File/Buffer cache paging differences
• Diagnosing memory problems
• Tuning the swap environment
• malloc
• Freeing memory
• Expanding the heap
• The Small Block Allocator (SBA)
• The Global Cache Exchange
• Tuning the Global Cache Exchange
• Protection ID faults
• Network Performance
• Types of performance
• Latency
• Latency and response time
• Bandwidth
• Layers within networking
• Mapping the physical network
• Measuring network speed
• ttcp
• netperf
• LAN cards and CPU interrupts
• ping
• traceroute
• netstat
• lsof
• Wireshark
• Kernel Parameters
• Kernel parameter groups
• Process management
• Process management parameters continued
• Memory management
• Swap space management
• Introduction to SYS V IPC parameters
• Message queues
• Understanding the message queue parameters
• Semaphores
• Shared memory
• Signals related parameters
• Networking
• NFS related parameters
• Auditing and security