[UPDATE] new pid allocation patch

[Jun Su]

On Thu, 05 Feb 2004 16:41:29 +0100, Andre Oppermann <andre at freebsd.org>  
wrote:

> Jun Su wrote:
>> Hi All,
>>  John Baldwin's proc lock commit today made my patch broken, so I have
>> revised the patch, and uploaded it to the same position:
>> http://www.arbornet.org/~junsu/pid.diff
>>  The revised patch has been improved based on the feedback. Basically,
>>  1. Added a new sysctl value kern.pidmax to control the current pid  
>> range.
>> This value can influence the reuse pid period. The initial value is  
>> 4096.
>
> This sysctl name looks very misleading to me.  Unless the highest PID
> I can get here is actually 4096.
>
The sysctl should be named as pidrange or some similiar name to avoid the  
confusing. I just choose a name same as the vairable name.

Jun Su

>> 2. Change the meaning of PID_MAX back to what it was, and sainty-check
>> whether the pid is 5 digit based on PID_MAX. (I think it is impossible  
>> that
>> pid expand PID_MAX for the algorithm nature, though.)
>>  3. The initial pid table size is bumped from 1<<5 to 1<<7.
>



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