4.x Collecting pv entries Suggest increasing PMAP_SHPGPERPROC,

[Stephen Clark]

Uwe Doering wrote:

> Hi Steve,
>
> Stephen Clark wrote:
>
>> Uwe Doering wrote:
>>
>>> [...]
>>> But you can put that option into the kernel config file:
>>>
>>>   options PMAP_SHPGPERPROC=...
>>>
>>> and build a new kernel with it.
>>
>>
>> You are correct. My question is more how much should I increase it. 
>> The current default in the 4.x LINT file
>> is "options PMAP_SHPGPERPROC=201" should I double it? Increase it by 
>> 50 to 251? Should it be a prime number?
>> I am just asking for information.
>
>
> The settings in the LINT file are not necessarily the defaults, rather 
> mere examples.  The default value for PMAP_SHPGPERPROC is 200 (defined 
> in the source file /usr/src/sys/i386/i386/pmap.c).  I would recommend 
> to increase it by 100 until the messages stop.  We use 300 on our 
> servers, for instance.
>
> Regards,
>
>    Uwe

Thanks a lot for the response. I have only seen the message one time, I 
have 1 gb of memory with dual xeons, so
I was thinking first I would bump it to 251.


Regards,
Steve

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