9:57 p.m.
--_000_B63C858E777679458338A30A991BB52401613084G1W3647americas_
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Hi Gilad & Einav
Thanks for sharing your ideas about NUMA feature and CPU pinning. It makes =
easier for users to understand.
And something I want to clarify:
1. NUMA tuning feature and CPU pinning feature are individually in lib=
virt ( ovirt backend ).
2. User could configure VM CPU pining ( NUMA not included ) separately=
.
3. When configuring NUMA feature, user should configure VM NUMA tuning=
( pin to host NUMA node & tuning mode ) and VM CPU pinning ( NUMA included=
), otherwise VM will have low performance.
4. Single virtual NUMA node could pin to multiply host NUMA nodes.
5. Multiply virtual NUMA nodes could pin to single host NUMA node.
6. NUMA tuning mode have default value 'strict', and could change to '=
prefer', 'interleave'
Our proposal:
OVirt 3.5
1. Keep current UX design, add NUMA tuning mode select box in VM dialo=
g.
2. Keep current BE model, query and action command.
3. Consider the low performance scene ( user did not configure VM CPU =
pinning )
When VdsBroker check the CPU pinning text is empty, then generate the right=
CPU pinning text from virtual NUMA nodes ( pin to host NUMA nodes )
The next version
1. Remove current CPU pinning text feature.
2. Consider the NUMA node inside CPU pinning design. ( Should consider=
the individually CPU pining design not includes NUMA )
3. Add related CPU pinning BE model, query and action command.
4. Turn off VdsBroker generate function.
Do you agree ?
Best Regards,
Jason Liao
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</head <body lang=3D"ZH-CN"
link=3D"#0563C1" vlink=3D"#954F72" style=3D"text-justi=
fy-trim:punctuation" <div
class=3D"WordSection1" <p
class=3D"MsoNormal"><span lang=3D"EN-US"
style=3D"font-family:"HP S=
implified","sans-serif"">Hi Gilad &
Einav<o:p></o:p></sp=
an></p <p
class=3D"MsoNormal"><span lang=3D"EN-US"
style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif"">Thanks for sharing your ideas
about=
NUMA feature and CPU pinning.</span><span lang=3D"EN-US"> It makes
e</span=
<p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif"">And something I want to
clarify:<o:=
p></o:p></span></p <p
class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">1.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">NUMA tuning feature
and CPU=
pinning feature are individually in libvirt ( ovirt backend
).<o:p></o:p><=
/span></p <p
class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">2.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">User could configure
VM CPU=
pining ( NUMA not included ) separately.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">3.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">When configuring NUMA
featu=
re, user should configure VM NUMA tuning ( pin to host NUMA node & tuni=
ng mode ) and VM CPU pinning ( NUMA included ), otherwise VM
will have low performance.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">4.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Single virtual NUMA
node co=
uld pin to multiply host NUMA nodes.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">5.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Multiply virtual NUMA
nodes=
could pin to single host NUMA node.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l2 level1 lfo1" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">6.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">NUMA tuning mode have
defau=
lt value ‘strict’, and could change to ‘prefer’,
&#=
8216;interleave’<o:p></o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif"">Our
proposal:<o:p></o:p></span></p <p
class=3D"MsoNormal"><span lang=3D"EN-US"
style=3D"font-family:"HP S=
implified","sans-serif"">OVirt
3.5<o:p></o:p></span></p <p
class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l1 level1 lfo2" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">1.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Keep current UX
design, add=
NUMA tuning mode select box in VM dialog.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l1 level1 lfo2" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">2.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Keep current BE model,
quer=
y and action command.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l1 level1 lfo2" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">3.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Consider the low
performanc=
e scene ( user did not configure VM CPU pinning
)<o:p></o:p></span></p <p
class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:0cm">=
<span lang=3D"EN-US" style=3D"font-family:"HP
Simplified","s=
ans-serif"">When VdsBroker check the CPU pinning text is empty, then g=
enerate the right CPU pinning text from virtual NUMA nodes (
pin to host NUMA nodes )<o:p></o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif"">The next
version<o:p></o:p></span><=
/p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo3" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">1.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Remove current CPU
pinning =
text feature.<o:p></o:p></span></p <p
class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo3" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">2.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Consider the NUMA node
insi=
de CPU pinning design. ( Should consider the individually CPU pining design=
not includes NUMA )<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo3" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">3.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Add related CPU
pinning BE =
model, query and action command.<o:p></o:p></span></p <p class=3D"MsoListParagraph"
style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo3" <![if !supportLists]><span
lang=3D"EN-US" style=3D"font-family:"HP Sim=
plified","sans-serif""><span
style=3D"mso-list:Ignore">4.<sp=
an style=3D"font:7.0pt "Times New
Roman"">  =
;
</span></span></span><![endif]><span lang=3D"EN-US"
style=3D"font-family:&q=
uot;HP Simplified","sans-serif"">Turn off VdsBroker
generate=
function.<o:p></o:p></span></p <p
class=3D"MsoNormal"><span lang=3D"EN-US"
style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif"">Do you agree
?<o:p></o:p></span></p=
<p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-family:"HP S=
implified","sans-serif""><o:p> </o:p></span></p <p class=3D"MsoNormal"><b><span
lang=3D"EN-US" style=3D"font-size:9.0pt;fon=
t-family:"HP
Simplified","sans-serif";color:black">Best=
Regards,<br </span></b><span
lang=3D"EN-US" style=3D"font-size:9.0pt;font-family:"=
HP Simplified","sans-serif";color:#717172">Jason
Liao</span>=
<span lang=3D"EN-US"><o:p></o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p </div
</body </html
--_000_B63C858E777679458338A30A991BB52401613084G1W3647americas_--
<span lang=3D"EN-US"
style=3D"font-family:"HP Simplified","=
sans-serif"">asier
for users to understand.<o:p></o:p></span></p