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Hi Ernest,
we have similar issues with IPoIB. To fix it we use VDSM hooks:
# cat /usr/libexec/vdsm/hooks/before_vdsm_start/network.sh
...
ethtool -K ib0 tso off 2>/dev/null
ethtool -K ib1 tso off 2>/dev/null
...
Nevertheless this is similar to running self defined init scripts.
But at least I have a well defined location to put those fixes into.
Best regards.
Markus
________________________________
Von: users-bounces(a)ovirt.org [users-bounces(a)ovirt.org]" im Auftrag von "Ern=
est Beinrohr [Ernest.Beinrohr(a)axonpro.sk]
Gesendet: Mittwoch, 19. November 2014 13:27
An: users
Betreff: [ovirt-users] disabling generic-receive-offload (gro) and large-re=
ceive-offload ?
Hi, is there a way of setting eth parameters for hypervisors? My freebsd in=
stance has terrible performance when these are enabled. Currently I run the=
se on all hypervisors manually.
ethtool =96K vnet0 gro off
ethtool =96K vnet2 gro off
ethtool =96K vnet0 lro off
ethtool =96K vnet2 lro off
as per: http://support.citrix.com/proddocs/topic/netscaler-vpx-10-5/ns-vpx-=
install-prereqkvm-ref.html
--
Ernest Beinrohr, AXON PRO
Ing<http://www.beinrohr.sk/ing.php>, RHCE<http://www.beinrohr.sk/rhce.php>,=
RHCVA<http://www.beinrohr.sk/rhce.php>, LPIC<http://www.beinrohr.sk/lpic.p=
hp>, VCA<http://www.beinrohr.sk/vca.php>,
+421-2-62410360 +421-903-482603
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charset=3DWindows-1=
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<style type=3D"text/css" id=3D"owaParaStyle"></style>
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<body bgcolor=3D"#FFFFFF" fpstyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">Hi Ernest,
<div><br>
</div>
<div>we have similar issues with IPoIB. To fix it we use VDSM hooks:</div>
<div><br>
</div>
<div># cat /usr/libexec/vdsm/hooks/before_vdsm_start/network.sh</div>
<div>...</div>
<div>
<div>ethtool -K ib0 tso off 2>/dev/null</div>
<div>ethtool -K ib1 tso off 2>/dev/null</div>
</div>
<div>...</div>
<div><br>
</div>
<div>Nevertheless this is similar to running self defined init scripts.</di=
v>
<div>But at least I have a well defined location to put those fixes into.</=
div>
<div><br>
</div>
<div>Best regards.</div>
<div><br>
</div>
<div>Markus</div>
<div><br>
<div style=3D"font-family: Times New Roman; color: #000000; font-size: 16px=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF475168" style=3D"direction: ltr;"><font
face=3D"Tahoma" si=
ze=3D"2" color=3D"#000000"><b>Von:</b>
users-bounces(a)ovirt.org [users-bounc=
es(a)ovirt.org]&quot; im Auftrag von "Ernest Beinrohr [Ernest.Beinrohr@a=
xonpro.sk]<br>
<b>Gesendet:</b> Mittwoch, 19. November 2014 13:27<br>
<b>An:</b> users<br>
<b>Betreff:</b> [ovirt-users] disabling generic-receive-offload (gro) and l=
arge-receive-offload ?<br>
</font><br>
</div>
<div></div>
<div>Hi, is there a way of setting eth parameters for hypervisors? My freeb=
sd instance has terrible performance when these are enabled. Currently I ru=
n these on all hypervisors manually.<br>
<br>
<pre class=3D"pre codeblock">ethtool =96K vnet0 gro off=0A=
ethtool =96K vnet2 gro off=0A=
ethtool =96K vnet0 lro off=0A=
ethtool =96K vnet2 lro off</pre>
<br>
as per: <a class=3D"moz-txt-link-freetext"
href=3D"http://support.citrix.co=
m/proddocs/topic/netscaler-vpx-10-5/ns-vpx-install-prereqkvm-ref.html" targ=
et=3D"_blank">
http://support.citrix.com/proddocs/topic/netscaler-vpx-10-5/ns-vpx-install-=
prereqkvm-ref.html</a><br>
<br>
<div class=3D"moz-signature">-- <br>
<div id=3D"oernii_footer" style=3D"color:gray"><span
style=3D"font-family:L=
ucida Console,Luxi Mono,Courier,monospace; font-size:90%">Ernest Beinrohr, =
AXON PRO<br>
<a href=3D"http://www.beinrohr.sk/ing.php"
style=3D"text-decoration:none; c=
olor:gray" target=3D"_blank">Ing</a>,
<a href=3D"http://www.beinrohr.sk/rhce.php"
style=3D"text-decoration:none; =
color:gray" target=3D"_blank">
RHCE</a>, <a href=3D"http://www.beinrohr.sk/rhce.php"
style=3D"text-decorat=
ion:none; color:gray" target=3D"_blank">
RHCVA</a>, <a href=3D"http://www.beinrohr.sk/lpic.php"
style=3D"text-decora=
tion:none; color:gray" target=3D"_blank">
LPIC</a>, <a href=3D"http://www.beinrohr.sk/vca.php"
style=3D"text-decorati=
on:none; color:gray" target=3D"_blank">
VCA</a>, <br>
+421-2-62410360 +421-903-482603 <br>
</span></div>
<img src=3D"http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk&... h=
eight=3D"1" width=3D"1" border=3D"0">
</div>
</div>
</div>
</div>
</div>
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