units in suse linux

[aslekib]

How can I find the size of units in sysctl.conf e.g whatis the size of
the shmmax variable i.e. is it byte kb , Mb etc....???

[aslekib]

Is that simple question really so difficult toanswer?

[gogalthorp]

Hmmm well doing a google search it appears the the value should be in bytes. Something you could have done.

[aslekib]

Of course I know that it is in bytes , because a collegeue knew , maybe because he had checked it uo on google, but I want to know how to verify this using a suse linux command.

[gogalthorp]

hmmm don't think there is a way. I don't know of a command to verify units of any kind that is used in any OS

cat /proc/sys/kernel/shmmax

will give the current value but it comes as bytes I guess which does not verify what needs to be entered into the sysctr file. I get a huge number that appears to be the total address space of 64 bits.

18446744073709551615

[aslekib]

Thank you gogalthorp!

I appreciate very much yopur answer

You can also use sysctl -a | grep shmmax, it will give you the value.
But what about documentation, does anybody know about
anything that can be reliably used??

[gogalthorp]

This is a kernel setting so I'd look into kernel documentation.

[aslekib]

Thank you gogalthorp,

ok, but I am a newbe in linux , so I dont know how to find this documentation,
so if you please can point me in the direction so that I can find this documentation I will appreciate it very much.

Asle

[gogalthorp]

I'd start on http//kernel.org

Then use Google.