topic Re: max value for maxdsiz in Operating System - HP-UX

max value for maxdsiz

Jayaprakash_1 — Mon, 08 Oct 2001 10:55:45 GMT

How to find out what is the maximum value for maxdsiz.

Re: max value for maxdsiz

Santosh Nair_1 — Mon, 08 Oct 2001 11:08:49 GMT

maxdsiz

default value: 0x04000000 (67108864 decimal)
max value: 0x010000000 (268435456 decimal)

On an 11.0 machine, you can use kmtune to tell you the default, present and maximum value of any kernel parameter. Just do a ktune -l.

-Santosh

Re: max value for maxdsiz

Stefan Farrelly — Mon, 08 Oct 2001 11:09:52 GMT

On a 32-bit system you can only address 1.75GB so its pointless setting it higher than that, although you probably could. On a 64-bit system the maximum is into the hundreds of Gigabytes - or at least the size of physical RAM.

Re: max value for maxdsiz

James R. Ferguson — Mon, 08 Oct 2001 11:12:41 GMT

Hi:

maxdsiz for 32-bit processors:

Minimum = 0x400000 (4 Mbytes)
Maximum = 0x7B03A000 (approx 2 Gbytes)
Default = 0x4000000 (64 Mbytes)

maxdsiz_64bit for 64-bit processors:

Minimum = 0x400000 (4 Mbytes)
Maximum = 4396972769279
Default = 0x4000000 (64 Mbytes)

Regards!

...JRF...

Re: max value for maxdsiz

Jayaprakash_1 — Mon, 08 Oct 2001 12:24:29 GMT

Hi JRF
please tell me the command to find out the maximum value of maxdsiz and maximum value for all parameters

Re: max value for maxdsiz

James R. Ferguson — Mon, 08 Oct 2001 12:30:24 GMT

Hi:

I think you will find this document useful:

http://docs.hp.com/hpux/onlinedocs/os/KCparams.OverviewAll.html

If you are running 10.x you can also use 'sysdef'. If you are running 11.x, then 'kmtune' is what you need. Have a look at the man pages for each.

Regards!

...JRF...

Re: max value for maxdsiz

Santosh Nair_1 — Mon, 08 Oct 2001 12:43:43 GMT

Opps...sorry about the mistake...I was looking at the value that was set on our machine instead of the max value. That's what you get for trying to answer questions at 5:00 in the morning....

The various kernel parameters are listed on the HP documentation web page (docs.hp.com) as well as in the file /usr/conf/master.d/core-hpux.

-Santosh

Re: max value for maxdsiz

Sanjay_6 — Mon, 08 Oct 2001 17:12:19 GMT

Hi Jay,

Look at the thread below for the max value os "maxdsiz" you are looking for.

http://docs.hp.com//hpux/onlinedocs/os/11i/kcparams/KCparam.MaxDsiz.html

Hope this helps.

Thanks