Re: [PATCH 10/11] Direct compact when a high-order allocation fails

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From: KOSAKI Motohiro

Subject: Re: [PATCH 10/11] Direct compact when a high-order allocation fails

Date: Thursday, March 25, 2010 - 4:22 am

> > Viewpoint 5. end user surprising
quoted text> > 
> > lumpy reclaim can makes swap-out even though the system have lots free
> > memory. end users very surprised it and they can think it is bug.
> > 
> > Also, this swap activity easyly confuse that an administrator decide when
> > install more memory into the system.
> > 
> 
> Compaction in this case is a lot less surprising. If there is enough free
> memory, compaction will trigger automatically without any reclaim.

I fully agree this.


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Messages in current thread:

[PATCH 10/11] Direct compact when a high-order allocation ..., Mel Gorman, (Fri Mar 12, 9:41 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., Minchan Kim, (Mon Mar 15, 7:47 pm)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., KOSAKI Motohiro, (Thu Mar 18, 11:21 pm)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., KOSAKI Motohiro, (Thu Mar 18, 11:31 pm)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., Mel Gorman, (Fri Mar 19, 3:09 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., Mel Gorman, (Fri Mar 19, 3:10 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., KOSAKI Motohiro, (Thu Mar 25, 4:08 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., KOSAKI Motohiro, (Thu Mar 25, 4:22 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., Mel Gorman, (Thu Mar 25, 8:11 am)

Re: [PATCH 10/11] Direct compact when a high-order allocat ..., KOSAKI Motohiro, (Thu Mar 25, 11:01 pm)


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