Version & Recent Enhancement Information
The current Version of SarCheck for Solaris SPARC 2.5+ is: 3.01b
Enhancements to version 3.01 include:
- Improved algorithms to calculate the metadata buffer cache hit ratios for read and write activity
- A tweak to the wording for site license customers (3.01a)
- Fix a bug causing sar reports to appear to come from the future when the activation key is changed (3.01a)
- Fix a potential unreported bug in the activation key algorithm (3.01b)
Enhancements which were added during the beta program include:
- get rid of the message "Page scanning peaked at 0.0 during multiple time intervals." on systems with plenty of memory.
- add <TT> tags to HTML recommendations for changing /etc/system
- general code cleanup
- lots of improvements to the disk analysis algorithms
- awareness of the Sparc Storage Array
- improve the accuracy of explanations about nautoup and tune_t_fsflushr recommendations
- analyze ps -elf data only during the time period within the start/end times for the sar report being analyzed
- fix the anomolous message "Average sampling interval was -309393443809 seconds"
- try to sync ps -elf start/end times to the sar report being analyzed
- analyze physmem parameter
- support analysis of up to 500 disks (if you need more, please say so)
- when most disks are idle and more than 12 disks are detected, only report on active ones
- if high %wio data is seen without heavy disk loads, suggest backup activity
- numerous changes to minimize analysis problems if data analyzed on another system
- fix -pf switch, for use when ps -elf data is not in the expected file
- Add -d switch to show an analysis of each disk on large systems
- tweak -o switch, the order form
- fix some redundant warning messages
- fix some problems caused by <<State change>> messages in the sar report
- finish -hp help text
- more improvements in the speed of the analysis (from 1.56 to 0.91 CPU seconds)
- provide more detail on reasons behind autoup and tune_t_fsflushr recommendations
- additional information about the reasons behind ncsize recommendations
- additional information about the reasons behind ufs_ninode recommendations
- additional information about the reasons behind bufhwm recommendations
- point out that maxpgio > 80 is bust suited for multiple swap devices
- recommend watching name length if 'toolong' in vmstat -s > 1% of total name lookups
- discuss the amount of unused memory in the system if it's not memory-poor
- create the set command to be used in /etc/system when changing parameter values
- enhance warning message about modifying /etc/system
- don't recommend ncsize changes if hits > 89.5%
- provide more detail on %wio statistics
- in HTML report, add a link/anchor to the SarCheck home page http://www.sarcheck.com
- analyze relationship between freemem and lotsfree
- fix a bug in lotsfree, desfree, and minfree recommendations
- get # of processors
- ignore any disk device starting with "fd"
- get page size since it's not always 4096
- reformat ps -elf help text
- suppress blank line printing if an idle disk
- numerous performance enhancements, reduce CPU utilization of SarCheck from ~ 6 to 1.5 secs
- spell SPARC with all caps
- eliminate "bad sar -r data" message if data is analyzed on a different system
- stramline code for html <STRONG> tags
- compare sar's freemem data with lotsfree and desfree
- analyze page scanning rate
- implement ps -elf analysis
- add bufhwm analysis
- add maxpgio analysis
- add lotsfree, desfree, minfree analysis
- use fsflush activity to help size autoup
- add autoup & tune_t_fsflushr analysis
- add ncsize analysis
- add ufs_ninode analysis
- warn if trying to analyze a pre-2.5 sar report
Holders of software subscriptions: 3.01a and 3.01b are running changes. You will automatically receive these changes with 3.02 when it is released. If you
would like an update to 3.01b, we will send it electronically at no charge. We will not automatically send these minor tweaks because we don't want to create work
for you by sending updates every few weeks.
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Copyright © 1996-1998 Aurora Software Inc., All rights reserved.
Information in this document is subject to change without notice.
Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.
This information is correct as of June 3, 1998 and is subject to change without notice.