On 21.07.2014 17:09, Daniel P. Berrange wrote:
On Thu, Jul 17, 2014 at 06:12:46PM +0200, Michal Privoznik wrote:
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>4194304</memory>
+ <currentMemory unit='KiB'>4194304</currentMemory>
+ <memoryBacking>
+ <hugepages>
+ <page size='2048' unit='KiB' nodeset='1'/>
+ <page size='1048576' unit='KiB' nodeset='0,2-3'/>
+ </hugepages>
+ </memoryBacking>
+ <vcpu placement='static'>4</vcpu>
+ <numatune>
+ <memory mode='strict' nodeset='0-3'/>
+ <memnode cellid='3' mode='strict' nodeset='3'/>
+ </numatune>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu>
+ <numa>
+ <cell id='0' cpus='0' memory='1048576'/>
+ <cell id='1' cpus='1' memory='1048576'/>
+ <cell id='2' cpus='2' memory='1048576'/>
+ <cell id='3' cpus='3' memory='1048576'/>
+ </numa>
+ </cpu>
There's nothing functionally wrong with what you have here, but I'm
wondering if you considered just adding a page size attribute against
the <cell> element under <numa> here ? Feels like that might be a bit
less verbose for the XML
Huh funny. That idea came up to my mind, but I thought it was more
verbose so I went down this road. I'm not fundamentally against it, but
I like my approach more. In most common case, users will use only one
size of huge pages to back their guests, so all they need to do is:
<memoryBacking>
<hugepages>
<page size='1' unit='G'/>
</hugepages>
</memoryBacking>
instead of repeating @pagesize attribute in each <cell/>. But as far as
I see it's just question of preference without any technical impact, right?
Michal
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