Performance Analysis and Tuning
for Solaris SPARC & x86
SarCheck for Solaris
SarCheck is a Linux & UNIX performance analysis and performance tuning tool. It is designed to help you with performance management on most Oracle Solaris, Linux, AIX, and HP-UX systems by making recommendations and explaining them with plain text, supporting graphs, and tables.
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How SarCheck for Solaris Makes a Difference

If you've had trouble understanding how to tune your Solaris kernel by setting tune_t_fsflushr, autoup, maxpgio, lotsfree, cachefree, or any of the other tunable kernel parameters, you need SarCheck! SarCheck analyzes your Oracle Solaris kernel statistics for possible performance bottlenecks and tells you how to correct them. It also looks for performance problems caused by hardware limitations such as insufficient memory or CPUs. Many performance tools are actually resource monitors. They provide statistics about resource utilization in a variety of numeric and graphical formats, but they leave most of the analysis and interpretation up to you.

SarCheck takes performance tuning beyond the others. Instead of just re-reporting system data and statistics, SarCheck will monitor the output of the sar and ps utilities that come with the operating system and examine the system's tunable parameters and their interaction with each other. Then in a concise HTML-formatted report or plain English text report, SarCheck identifies problem areas including the system's processor (or processors), physical memory or RAM, and disks, and makes recommendations about how to correct any problems that it finds.

Make your system fly with SarCheck! To maintain peak efficiency, use SarCheck regularly and watch how its recommendations change when you add more users, upgrade system components and software, or whenever you detect a change in system performance. SarCheck has been written to be lean and efficient. There isn't a lot of "fluff"... just the information you need to do your job quickly and efficiently, presented in a user-friendly format. SarCheck usually requires less than a megabyte of disk space and uses about one second of CPU time per day!

We are always working with large and small customers to further refine SarCheck's algorithms based on real world experience and testing. By purchasing the SarCheck software subscription, you can be sure that you always have the latest in monitoring and tuning algorithms at your fingertips. SarCheck is a widely accepted product and thousands of licenses have been sold to companies all over the world. Be sure to check out the pages related to our production of graphs! Please note that SarCheck is not intended as a replacement for top, Dtrace, virtual_adrian, or any other tool. It's a unique addition to your toolset with its own features.

SarCheck runs on Oracle Solaris, SPARC and x86 kernels. Solaris systems using zones should install SarCheck in the global zone. SarCheck also runs on AIX, HP-UX, and Linux x86.

Learn more:

View a sample SarCheck report

ZoneHound: A tool to monitor Solaris zones

More information:

PDF Manual for SarCheck Version 7
PDF Manual - SarCheck v7 Switches
PDF Manual - SarCheck v7 Parms
General release & recent enhancements
SarCheck data sheets
Using SarCheck with ZoneHound™
News from Tech Support and FAQ
SarCheck home page

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