On 8/9/2011 12:57 PM, m.roth@xxxxxxxxx wrote:
>
>>>
>>> on centos 5 - I could trim the number of mingetty's running by editing
>>> /etc/inittab
>>>
>>> on centos 6 there are none in the /etc/inittab file but it reverences
>>> /etc/init/tty.conf.
>>> I dont see in there how to control how many mingetty's get started.
>>
>> Does that matter much? Multiple instances of a program should mostly
>> share RAM anyway.
>
> Assuming actually true reentrant code.
No, just assuming separate code and data segments. Any executable code
copies loaded from the same inode should be shared and paged in on
demand (unless linux has learned nothing from decades-old unix). If the
copies were forked from a single instance instead of started
individually they could also share data in copy-on-write pages until an
instance changes a value.
--
Les Mikesell
lesmikesell@xxxxxxxxx
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