[ltp] swsusp vs. Hibernate?

[Bill Sheppard]

Bret Comstock Waldow wrote:
> On Fri, 11 Nov 2005 02:58, Aaron Mulder wrote:
>   
>> On 11/9/05, Bret Comstock Waldow <bwaldow@woosh.co.nz> wrote:
>>     
>>> So, why not just dedicate a larger swap partition (existing swap + 1G),
>>> which you'll get more use out of than just for hibernating?
>>>       
>> This is totally subjective, but it doesn't seem like the normal kernel
>> implementation attempts to shrink only until it fits in the available
>> swap space.  It seems to try to shrink as much as it possibly can and
>> then goes and applies whatever it's left with to swap space.  So
>> adding more swap space doesn't seem likely to shorten the "shrinking"
>> cycle.  Am I wrong?
>>     
>
> I will admit that I don't know about that.
>
> I am pretty sure however, that neither a separate swap partition, nor Redisafe 
> will speed this up.  Perhaps swsusp2 might - if the compression+writing is 
> quicker than the writing alone.
>   
The write speed is totally fine - usually five seconds or less.  It's
the time spent freeing up memory (as much as a minute or more), and the
resultant paging when restoring which I'm trying to avoid.

Bill

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Bill Sheppard                                  Industry Marketing Manager
bill.sheppard@sun.com                   Consumer and Mobile Systems Group
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