Veritas-bu

[Veritas-bu] Solaris 10 - kernel tuning

2008-05-15 20:35:36
Subject: [Veritas-bu] Solaris 10 - kernel tuning
From: Dominik Pietrzykowski <dominik_pietrzykowski AT toll.com DOT au>
To: veritas-bu AT mailman.eng.auburn DOT edu
Date: Fri, 16 May 2008 10:21:20 +1000

 

 

People,

 

This is more of a correction to one of my old posts:

 

I believe I have previously posted that you should not put any tuning parameters in /etc/system for solaris 10

 

Turns out I am wrong, if you have a busy media server and it gets shared memory allocation errors (89s), I recommend

the following:

 

 

set shmsys:shminfo_shmmni=256

 

or:

set shmsys:shminfo_shmmni=512

 

here’s the technote:

 

http://seer.entsupport.symantec.com/docs/295295.htm

 

Thanks go to Brook from support who helped me out on this one.

 

You may also need to play around with projmod, which is whay I originally thought you don’t need /etc/system anymore. Also when you read the Sun docs that’s the impression you get but in practice it’s not 100% true.

 

Here’s some prctl output from our emdia server:

 

project.max-shm-memory

        privileged      16.0GB      -   deny                                 -

        system          16.0EB    max   deny                                 -

project.max-shm-ids

        privileged        512       -   deny                                 -

        system          16.8M     max   deny                                 -

 

Any questions, shoot me a mail.

 

Regards,

 

Dominik

 

 

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