Re: [Xen-devel] Xen 4.7 Development Update

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.03.16 at 15:07, <Paul.Durrant@xxxxxxxxxx> wrote:
>>  -----Original Message-----
>> From: Xen-devel [mailto:xen-devel-bounces@xxxxxxxxxxxxx] On Behalf Of Jan
>> Beulich
>> Sent: 02 March 2016 13:33
>> To: George Dunlap
>> Cc: xen-devel; Wei Liu
>> Subject: Re: [Xen-devel] Xen 4.7 Development Update
>> 
>> >>> On 02.03.16 at 12:38, <dunlapg@xxxxxxxxx> wrote:
>> > On Mon, Feb 29, 2016 at 11:17 AM, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:
>> >> *  Improve ioreq server performance
>> >>   -  Yu Zhang
>> >>   -  Paul Durrant
>> >
>> > If this means "use RB trees for rangesets", I think this is already in.
>> 
>> No, it's not. There was no point in committing that one without
>> the patch actually needing it.
>> 
> 
> Using RB trees vs. a linear walk is still an improvement so I see no harm in 
> committing it.

But the individual nodes (and hence the overall resource use)
grow, and whether that is worth the presumably tiny win on
lookups I'm not at all certain.

Jan


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