add kernel parameter

[samir_12]

Hi,
can i add a kernel parameter??
"SEMMSL" parameter not found. i want to set it to 100 ;
How can I do this ?

Thanks.

[Steve Steel]

Hi


www.docs.hp.com

search on semmsl


Which OS version do you have


Steve Steel

[Pete Randall]

I'm guessing you're on an 11.0 system and you're right, there is no SEMMSL parameter. There is a SEMMSL_OVERRIDE but I have no idea what that does. SEMMSL is available in 11i so one answer would be to upgrade your system to 11i - then you'll be able to change it.


Pete

[Zafar A. Mohammed_1]

If you are at 11i check this
http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/5185-4391/5185-4391_top.html&con=/hpux/onlinedocs/5185-4391/00/00/74-con.html&toc=/hpux/onlinedocs/5185-4391/00/00/74-toc.html&searchterms=SEMMSL&queryid=20030416-072011

Let us know what OS version you want to setup.

Thanks
Zafar

[Jeff Schussele]

Hi,

semmsl or the max semaphore per identifier is a NEW param introduced in 11i. This is a dynamic param so it can be tuned on the fly in 11i.
BUT if you have 11.0 you won't find it.

Rgds,
Jeff

[John Poff]

Hi,

It's too bad, but we can't add kernel parameters to the kernel if they don't already exist. If we could, the first one I would add would be, 'runfastandnevercrash', and I'd set it to 1. :)

JP

[Zafar A. Mohammed_1]

Here we go, we got a new Kernel Parameter from John "runfastandnevercrash" make sure it should set to 0.

Zafar

[samir_12]

Thanks all.
my os version is : 11.00.51.2

[Nick Fedorov]

In the description of PHKL_21039 patch:

SEMMSL, the hard-coded max number of semaphores per ID, has been superceded by a new 'semmsl_override' kernel tunable which will have a minimum (and default) value of 2048. SAM can increase the value of the new tunable up to a maximum of 10240. The value of SEMMSL read by pstat() will still correctly reflect the value set in semmsl_override.


So, you can change its value, but can't set it to 100.