Wednesday, December 21, 2005

CMG05 trip comments and "utilization is useless..."

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I have a good time at the Computer Measurement Group meeting in Orlando recently. Mario Jauvin and I put together a tutorial on "Capac...
3 comments:
Monday, October 31, 2005

Help! I've lost my memory! Updated Sunworld Column

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Originally published in Unix Insider 10/1/95 Stripped of adverts, url references fixed and comments added in red type to bring it up to date...
1 comment:
Tuesday, October 25, 2005

SunWorld Columns at ITworld

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I found that the columns I wrote between 1995 and 1999 all seems to be online, but its hard to find, so I'm going to start by just listi...
Sunday, October 02, 2005

How busy is your CPU, really?

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Just in case you thought that you could compare your CPU utilization data across Solaris releases I have a few words of caution. To start wi...

SE toolkit 3.4 on Solaris 10 Opteron Workaround

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The current 3.4 build of SE is available from the sunfreeware site and supports Solaris 8, 9 and 10 for SPARC and x86. It also includes ful...
3 comments:
Monday, September 12, 2005

SunWorld Offline

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The monthly columns I wrote for SunWorld Online between 1995 and 1999 seem to have gone offline. At one point after SunWorld shut down I got...
2 comments:
Monday, August 15, 2005

Solving storage tuning problems

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I wrote a while ago about Dave Fisk's Ortera Atlas tool for storage analysis. I recently had a chance to use a beta release of Atlas on...
Saturday, July 23, 2005

Extracct code posted on orcaware.com

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Since the code I was writing to extract useful information from extended accounting logs is intended to end up as a data source for Orca, it...
1 comment:
Friday, July 15, 2005

Free performance and capacity tools

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What free tools do you use for performance and capacity planning work? I'm particularly interested in figuring out combinations of tools...
1 comment:
Wednesday, June 15, 2005

Playing with Fire

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What would you do if your house burned down? Build another one, but that takes a while, so next time it catches fire you call the fire briga...
Friday, May 20, 2005

Performance monitoring with Hyperthreading

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Hyperthreading is used by most recent Intel servers, Intel describe it here. I tried searching for information on the performance impact and...
4 comments:
Thursday, May 12, 2005

Seeing storage problems

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Change of topic... Those of you who have dealt with Sun storage performance over the years might have heard of Dave Fisk, we became good fri...
Wednesday, May 04, 2005

extraccting on SPARC

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I made it with no problems on SPARC Solaris 10 (using /usr/sfw/bin/gcc) and it seems to be working fine. The binary doesn't work on Sola...

extracct 1.0

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I cleaned up the build directory and renamed the program extracct - extract useful info from exacct - and its been running fine on Solaris 1...
3 comments:
Thursday, April 28, 2005

Pesky style sheet format.....

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Sorry that some of the lines are wrapped and others run off the edge, I'm still figuring out how to make the composition tools and templ...
1 comment:

Automated rotating exdump

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I've added an option that automates the processing of exacct data to text file format and rotates the logs, it is hard wired to create a...
Monday, April 18, 2005

Flow accounting printout

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I went to edit the code and realized that I hadn't finished some previous work, so I added a printout of the flow accounting data, an ex...
4 comments:
Thursday, April 14, 2005

Sequencing exacct logs

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I decided to simplify the next step and to just get raw data logged in a useful manner. To do this there needs to be a periodic process that...
Friday, April 01, 2005

Writing accounting records at time intervals

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A major new feature of the exacct system is the ability to get an accounting record logged without terminating the process. There are two fo...
3 comments:
Thursday, March 24, 2005

Extracting useful exacct process data

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I modified the /usr/demo/libexacct/exdump.c example code to include the data structures described in previous posts, and made the code updat...