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Sunday 17 March 2013

Kernel Tuning in HPUX

The below post will help in viewing and managing the kernel parameters.

/stand/vmunix : Default Kernel Location.

# kconfig -v : Command shows the current kernel path, when was it updated and last configuration.

# kctune nproc=5200 : Command to change the kernel parameter.

# kctune -b yes nproc=5200 : Same as above which will automatically take kernel backup configuration.

# kctune -b no nproc=5200 : Same as above but will not take kernel backup configuration.

# kconfig -H : This will discard any changes to happen at the next reboot to the kernel. So the kernel will boot with the current running configuration.

# kcmodule : List all the kernel modules.

# kcmodule -v <Module_Name> : List information about that module.

# kcpath : Shows the name of the current path.

# kcusage -d nproc : Command shows the usage of nproc on hourly basis.

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