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тАО09-11-2008 07:33 PM
тАО09-11-2008 07:33 PM
Can you please help me/teach me how to do kernel tuning on nfile parameter. I understand that it is a dynamic parameter in 11.23 and doesnt need a reboot to take effect. What are the steps?
[root@server1:/root]
# kctune | grep nfile
nfile 94508 (15*nproc)+2048 Imm (auto disabled)
I am to change the present value to 1011240
Best,
Mike
Solved! Go to Solution.
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тАО09-11-2008 08:12 PM
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тАО09-11-2008 08:13 PM
тАО09-11-2008 08:13 PM
Re: configuring nfile parameter in 11.23 environment
/usr/sbin/kctune -v nfile
Current Value 65536 [Default]
Value at Next Boot 16384 [Default]
Can Change Automatic Tuning Enabled
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тАО09-11-2008 08:31 PM
тАО09-11-2008 08:31 PM
Re: configuring nfile parameter in 11.23 environment
Please read the following document.
http://docs.hp.com/en/939/KCParms/KCparam.Nfile.html
Note please you can use glance to view nfile -option t. Use the 'F' option in glance to see Process Open Files.
** 'lsof' is an excellenet utility for viewing open files.
e.g.
# lsof -p
Regards,
Gokul Chandola
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тАО09-11-2008 09:15 PM
тАО09-11-2008 09:15 PM
Re: configuring nfile parameter in 11.23 environment
here u have to select parameter u want to tune
go to "Action"
go to "Modify configurable parameter"
Choose One to Modify Parameter: ├в Formula/Value: 2048 ├в ├в
├в ├в ├в <*> Specify New Formula/Value ├в ├в ├в
├в ├в ├в < > Use Formula in Source File ├в Calculated Value: 2048
here i choose "Specify New Formula/Value" and written Formula value as 2048 so my calculated value also become 2048
forsuxde900 # kmtune|grep nfile
nfile 2048 - 2048
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тАО09-11-2008 10:54 PM
тАО09-11-2008 10:54 PM
Re: configuring nfile parameter in 11.23 environment
Thanks for the responses. I was looking for a way to tuned it in cli and not in sam. I have tuned the parameter by
#/usr/sbin/kctune -B nfile=1011240
no reboot was needed.. :)
Best,
Mike