Linux, Solaris, Docker, Zones – CPU hog load test

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A controlled CPU HOG load test – Change the number to the number of CPU's

Another form of loading all cpu’s, might not work in latest Linux bash releases Note: Make sure you are not running anything important on the system (docker or zone), as it will max all cpus.

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How To Measure Network Latency With Ping And Dtrace in Solaris.

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Measuring Network Latency In Solaris Use the below dtrace script (SuperPing.d) to measuring Network Latency.

Run it like the below.

Sample output.

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Capturing Linux network statistics – perl script

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Capture Linux network statistics Example capture output is below.

Perl script source is below

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How To Change The Priority In Solaris For The Oracle DB Process

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Modify the Oracle Database Cluster process to use the FX scheduler.

Update to include the LMS process as well

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Script to get the Solaris ZFS ARC Size

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This script will list the ZFS adaptive replacement cache (ARC)statistics and usages To get the script click here Another great ZFS ARC summery script is available here Output will look something like this.

To change the arc size, add the following line to /etc/system, where the numeric value is the desired arc size in […]

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Solaris network statistics utility (only Solaris 10)

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Capturing Network statistics on Solaris 10 Latest nicstat utility is available here. The latest nicstat utility is compiled and might work better, below is the older perl version. The latest version is also on sourceforge Example script output

Perl script

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