Subject: Re: [PATCH] pseries: phyp dump: Variable size reserve space.

From: Manish Ahuja <[email-masked]>
Date: Tue, 15 Apr 2008 17:56:14 -0500

Paul,

The aim is to have more flex space for the kernel on machines with more resources. Although the dump will be collected pretty fast and the memory released really early on allowing the machine to have the full memory available, this alleviates any issues that can be caused by having way too little memory on very very large systems during those few minutes.

-Manish

Paul Mackerras wrote:
> Manish Ahuja writes:
> 
>> B. It computers 5% of total ram and rounds it down to multiples of 256MB.
>> C. Compares the rounded down value and returns larger of 256MB or the new
>>    computed value.
> 
> So if we have 10GB of memory or more we'll use reserve more than
> 256MB.  What is the advantage of reserving more than 256MB of memory?
> 
> Paul.