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Performance and Tuning






Tutorials (12)

Total Tutorials: 4727  |  Added today: 18 Tutorials updated: 09/03/2010



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HP-UX 10.0 Memory Management White Paper
 
This paper provides an overview of HP-UX memory management,``including: Physical and virtual memory, Mapping files into virtual memory, Shared libraries, Paging, Deactivation.
Added: 05/10/2000, Hits: 255, Rating: 0, Votes: 0
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HP-UX 10.0 Process Management White Paper
 
Discusses What a process is, How processes are created, How processes are killed, Commands for managing processes, How the kernel manages processes, HP-UX multiprocessing.
Added: 05/10/2000, Hits: 267, Rating: 0, Votes: 0
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Introduction to Performance Analysis
 
Bottlenecks are not an uncommon problem. They occur when computer resources are stretched beyond there capacity, because of errant activities or because the workload is too great. To determine the which of the computers resources is the source of the bottleneck, investigation into these four general categories is advised.
Added: 05/10/2000, Hits: 284, Rating: 0, Votes: 0
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Monitoring CPU Performance
 
How to monitor CPU performance in a Unix environment.
Added: 05/10/2000, Hits: 328, Rating: 0, Votes: 0
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Monitoring Input/Output Performance
 
To determine where input/output bottlenecks exists on a system the iostat command can be used to display the amount of data moving between the system and a disk or terminal device, on all but the IRIX operating system. The command osview is used in IRIX to duplicate this funtion.
Added: 05/10/2000, Hits: 283, Rating: 0, Votes: 0
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Monitoring Memory Performance
 
How to monitor and manage memory in a Unix environment.
Added: 05/10/2000, Hits: 294, Rating: 0, Votes: 0
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Monitoring Network Performance
 
The command netstat is used to report a variety of network information including the amount of kernel memory utilization.
Added: 05/10/2000, Hits: 274, Rating: 0, Votes: 0
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Priority Paging
 
The current Solaris behavior is that response of applications can suffer significantly when the file system is used heavily. On a workstation, this can be noticed as poor interactive response and trashing of the swap disk. On servers, the effect is degraded application response time, and low CPU utilization due to heavy paging.
Added: 05/10/2000, Hits: 253, Rating: 0, Votes: 0
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Solaris 2.x - Tuning Your TCP/IP Stack and More
 
Tuning the TCP/IP stack and other kernel related parameters across different versions of Solaris 2.
Added: 03/20/2002, Hits: 335, Rating: 0, Votes: 0
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The Solaris Memory System
 
Includes a summary of the most frequently asked questions regarding memory utilization in Solaris, sizing and capacity planning, Memory analysis and tools, architecture, I/O via the VM system.
Added: 05/10/2000, Hits: 272, Rating: 0, Votes: 0
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UNIX Performance Management
 
The purpose of this paper is to introduce the performance analyst to some of the free tools available to monitor and manage performance on UNIX systems, and to provide a guideline on how to diagnose and fix performance problems in that environment. The paper is based on the author’s experiences with AIX and will cover many of the tools available on that and other UNIX platforms. It will also provide some Rules of Thumb for analyzing the performance of UNIX systems.
Added: 05/10/2000, Hits: 211, Rating: 0, Votes: 0
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What are the tunable kernel parameters for Solaris 2?
 
This column identifies and explains some of the variables that are safe to tune. It also compares Solaris tunables with those in other versions of Unix in order to identify the ones that size automatically in Solaris 2 and therefore don't need manual tuning.
Added: 05/10/2000, Hits: 353, Rating: 0, Votes: 0
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