8:40 a.m.
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On 31 May 2016, at 14:30, Ralf Schenk <rs(a)databay.de> wrote:
=20
Hello,
=20
I try to get VM's to use hugepages by default. We use them on our =
manual
VM's set up for libvirt and experience performance advantages. I =
installed vdsm-hook-hugepages, but according to =
http://www.ovirt.org/develop/developer-guide/vdsm/hook/hugepages/ =
<http://www.ovirt.org/develop/developer-guide/vdsm/hook/hugepages/> I =
have to set hugepages=3DSIZE. Engine Web-Fronted doesn't show an option =
anywhere to specify this.=20
=20
It uses transparent hugepages for quite some time, which kind of =
obsoleted the hook. Do you really need/want to explicitly configure =
hugepages, is THP not good enough for your case?
(though, I tried the hook not so long ago and it did its job, so not =
sure what=E2=80=99s the problem=E2=80=A6, it=E2=80=99s just annoying to =
configure it:)
Thanks,
michal
> I want the VMs to have:
=20
> <memoryBacking>
> <hugepages/>
> </memoryBacking>
=20
> Any hint ?
> Versions:
=20
> vdsm.noarch
4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-cli.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-gluster.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-hook-hugepages.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-hook-vmfex-dev.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-infra.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-jsonrpc.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-python.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-xmlrpc.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
vdsm-yajsonrpc.noarch 4.17.28-0.el7.centos =
@ovirt-3.6
=20
> Engine:
> ovirt-engine.noarch 3.6.6.2-1.el7.centos =
@ovirt-3.6
=20
> --=20
=20
> <logo_databay_email.gif>
=20
> Ralf Schenk
> fon +49 (0) 24 05 / 40 83 70
> fax +49 (0) 24 05 / 40 83 759
> mail rs(a)databay.de <mailto:rs@databay.de>
> =09
> Databay AG
> Jens-Otto-Krag-Stra=C3=9Fe 11
> D-52146 W=C3=BCrselen
> www.databay.de <http://www.databay.de/>
=20
> Sitz/Amtsgericht Aachen =E2=80=A2 HRB:8437 =E2=80=A2
USt-IdNr.: DE =
210844202
Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, =
Dipl.-Kfm. Philipp Hermanns
Aufsichtsratsvorsitzender: Klaus Scholzen (RA)
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
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<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 31 May 2016, at 14:30, Ralf Schenk <<a =
href=3D"mailto:rs@databay.de"
class=3D"">rs(a)databay.de</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D"">
=20
<meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8" class=3D"">
=20
<div bgcolor=3D"#FFFFFF" text=3D"#000000"
class=3D""><p =
class=3D"">Hello,</p><p class=3D"">I try to get
VM's to use hugepages by =
default. We use them on our
manual VM's set up for libvirt and experience performance
advantages. I installed vdsm-hook-hugepages, but according to
<a class=3D"moz-txt-link-freetext" =
href=3D"http://www.ovirt.org/develop/developer-guide/vdsm/hook/hugep...
I have to set hugepages=3DSIZE. Engine Web-Fronted doesn't show an
option anywhere to specify this. <br =
class=3D""></p></div></div></blockquote><div><br
class=3D""></div>It =
uses transparent hugepages for quite some time, which kind of obsoleted =
the hook. Do you really need/want to explicitly configure hugepages, is =
THP not good enough for your case?</div><div>(though, I tried the hook =
not so long ago and it did its job, so not sure what=E2=80=99s the =
problem=E2=80=A6, it=E2=80=99s just annoying to configure =
it:)</div><div><br =
class=3D""></div><div>Thanks,</div><div>michal</div><div><br
=
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><div =
bgcolor=3D"#FFFFFF" text=3D"#000000" class=3D""><p
class=3D"">
</p><p class=3D"">I want the VMs to have:</p><p
class=3D""><tt =
class=3D""> <memoryBacking><br
class=3D"">
<hugepages/><br
class=3D"">
</memoryBacking><br class=3D"">
</tt><br class=3D"">
</p><p class=3D"">Any hint ?<br class=3D"">
</p><p class=3D"">Versions:</p><p
class=3D""><tt =
class=3D"">vdsm.noarch &nbs=
p; =
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-cli.noarch =
&n=
bsp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-gluster.noarch &n=
bsp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-hook-hugepages.noarch &=
nbsp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-hook-vmfex-dev.noarch &=
nbsp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-infra.noarch &nbs=
p; =
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-jsonrpc.noarch &n=
bsp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-python.noarch &nb=
sp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-xmlrpc.noarch &nb=
sp;
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><tt =
class=3D"">vdsm-yajsonrpc.noarch =
4.17.28-0.el7.centos
=
@ovirt-3.6</tt><tt class=3D""><br class=3D"">
</tt><br class=3D"">
</p>
Engine:<br class=3D"">
=
ovirt-engine.noarch &=
nbsp; &nb=
sp;
3.6.6.2-1.el7.centos =
@ovirt-3.6<br class=3D"">
<br class=3D"">
<div class=3D"moz-signature">-- <br class=3D""><div
class=3D"">
<br class=3D"webkit-block-placeholder"></div>
<table border=3D"0" cellpadding=3D"0"
cellspacing=3D"0" class=3D"">
<tbody class=3D"">
<tr class=3D"">
<td colspan=3D"3" class=3D""><span =
id=3D"cid:part1.FD451D75.B4E6C315@databay.de"><logo_databay_email.gif&g=
t;</span></td>
</tr>
<tr class=3D"">
<td valign=3D"top" class=3D""> <font
face=3D"Verdana, Arial, =
sans-serif" size=3D"-1" class=3D""><br
class=3D"">
<b class=3D"">Ralf Schenk</b><br
class=3D"">
fon +49 (0) 24 05 / 40 83 70<br class=3D"">
fax +49 (0) 24 05 / 40 83 759<br class=3D"">
mail <a href=3D"mailto:rs@databay.de"
class=3D""><font =
color=3D"#FF0000" class=3D""><b
class=3D"">rs(a)databay.de</b></font></a><br=
class=3D"">
</font> </td>
<td width=3D"30" class=3D""> </td>
<td valign=3D"top" class=3D""> <font
face=3D"Verdana, Arial, =
sans-serif" size=3D"-1" class=3D""><br
class=3D"">
<b class=3D"">Databay AG</b><br
class=3D"">
Jens-Otto-Krag-Stra=C3=9Fe 11<br class=3D"">
D-52146 W=C3=BCrselen<br class=3D"">
<a href=3D"http://www.databay.de/"
class=3D""><font =
color=3D"#FF0000" class=3D""><b
class=3D"">www.databay.de</b></font></a>
</font> </td>
</tr>
<tr class=3D"">
<td colspan=3D"3" valign=3D"top"
class=3D""> <font =
face=3D"Verdana, Arial,
sans-serif" size=3D"1" class=3D""><br
class=3D"">
Sitz/Amtsgericht Aachen =E2=80=A2 HRB:8437 =E2=80=A2 =
USt-IdNr.: DE
210844202<br class=3D"">
Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch
Yavari, Dipl.-Kfm. Philipp Hermanns<br class=3D"">
Aufsichtsratsvorsitzender: Klaus Scholzen (RA) </font>
</td>
</tr>
</tbody>
</table>
<hr noshade=3D"noshade" size=3D"1" width=3D"100%"
class=3D"">
</div>
</div>
_______________________________________________<br class=3D"">Users =
mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org"
=
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br =
class=3D""></div></blockquote></div><br
class=3D""></body></html>=
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