topic Re: interdependent kernel parameters won't allow configuring in Operating System - HP-UX

interdependent kernel parameters won't allow configuring

Joe Robinson_2 — Tue, 26 Oct 2004 17:46:36 GMT

I'm trying to bump up my max_thread_proc (HPUX, 11.00) and get the error "max_thread_proc <= nkthread". Problem is, when I attempt to modify nkthread, I get the same error (except vice versa). How do I get around this loop?

Re: interdependent kernel parameters won't allow configuring

Steven E. Protter — Tue, 26 Oct 2004 17:50:48 GMT

You can modify both parameters at the same time.

You should be able to do it either with kmtune commands or with sam kernel, configurable parameters.

You may need to override the forumula.

If sam won't let you override try a scripted kmtune change that does them in sequence.

Based on the formula, change nkthread, then max_thread_proc.

Post the error please, it might involve a third kernel parameter.

SEP

Re: interdependent kernel parameters won't allow configuring

Joe Robinson_2 — Tue, 26 Oct 2004 17:52:46 GMT

I'll post the error in a moment, am rebooting that box as I type. Have tried adjusting both nkthread and max_thread_proc, but they both point at each other and won't allow me to change the value.

Re: interdependent kernel parameters won't allow configuring

Joe Robinson_2 — Tue, 26 Oct 2004 18:04:31 GMT

see attached.

Re: interdependent kernel parameters won't allow configuring

Deoncia Grayson_1 — Tue, 26 Oct 2004 18:34:03 GMT

You can't manually override these values in sam? Set the max_thread_proc to which ever value you would like? If not then I suggest you use kmtune.

Re: interdependent kernel parameters won't allow configuring

Sundar_7 — Tue, 26 Oct 2004 18:51:15 GMT

Joe,

give it a try from command line

# cd /stand/build
# /usr/lbin/sysadm/system_prep -s system
# kmtune -s max_thread_proc= -S system
# kmtune -s nkthread= -S system
# mk_kernel -s system
# kmupdate
# mv /stand/system /stand/system.prev
# cp /stand/build/system /stand/
# /usr/sbin/shutdown -r -y 0

- Sundar

Re: interdependent kernel parameters won't allow configuring

Joe Robinson_2 — Wed, 27 Oct 2004 10:51:53 GMT

Sundar,

Thanks for the syntax; it worked fine...and reminded me that sometimes the GUI way of doing things through SAM isn't the best way...sometimes it's easy to get spoiled and not have to look up syntax by using SAM, but to know what you (we) are doing, it's still important to "look behind the scenes". Thanks again.

Re: interdependent kernel parameters won't allow configuring

Joe Robinson_2 — Wed, 27 Oct 2004 10:52:53 GMT

SAM wouldn't allow me to modify the settings, it was necessary to do it from the command line.