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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Ah I see the error<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">You have<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><memoryBacking><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <hugepages/></span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <page size='1' unit='G' nodeset='0'/><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </memoryBacking><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Not<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><memoryBacking><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <hugepages></span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <page size='1' unit='G' nodeset='0'/><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </hugepages></span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </memoryBacking><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><a name="_____replyseparator"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Adnan Mundres [mailto:amundres@yahoo.com]
<br>
<b>Sent:</b> Wednesday, January 24, 2018 9:05 PM<br>
<b>To:</b> Mooney, Sean K <sean.k.mooney@intel.com>; libvir-list@redhat.com<br>
<b>Subject:</b> Re: [libvirt] with vhostuser I cannot use hugepages<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div id="yui_3_16_0_ym19_1_1516825847521_13451">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Hi Sean <o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_13451">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">,<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_13451">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p> </o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_13451">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Thanks for you reply. I do have hugepages configuration in my xml and still it is not getting the memory from Hugepage. Following is my complete
xml file<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_13451">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p> </o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15406">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><domain type='kvm'><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15408">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <uuid>c1f7a3d0-ccb7-4a85-b0f0-dd4bab73ba54</uuid><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15409">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <description>Timos VM</description><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15410">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <memory>16777216</memory><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15411">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <currentMemory>16777216</currentMemory><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15412">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <cpu mode='host-model'><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15413">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <numa><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15414">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <cell id="0" cpus="0" memory="16777216" unit='KiB' memAccess="shared"/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15415">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </numa><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15416">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </cpu><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15417">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <memoryBacking><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15418">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <hugepages/></span><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:#1F497D"><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15419">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <page size='1' unit='G' nodeset='0'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15420">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </memoryBacking><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15421">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <numatune><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15422">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <memory mode='strict' nodeset='1'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15423">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </numatune><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15424">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpu current='7'>7</vcpu><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15425">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <cputune><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15426">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='0' cpuset='2'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15427">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='1' cpuset='3'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15428">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='2' cpuset='4'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15429">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='3' cpuset='5'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15430">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='4' cpuset='6'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15431">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='5' cpuset='7'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15432">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <vcpupin vcpu='6' cpuset='8'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15433">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <emulatorpin cpuset="0,1"/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15434">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </cputune><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15435">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <os><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15436">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <type arch='x86_64' machine='pc'>hvm</type><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15437">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <smbios mode='sysinfo'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15438">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </os><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15439">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <sysinfo type ='smbios'<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_15443">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <clock offset='utc'><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17229">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <timer name='pit' tickpolicy='delay'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17230">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <timer name='rtc' tickpolicy='delay'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17231">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </clock><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17232">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <devices><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17233">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <emulator>/usr/libexec/qemu-kvm</emulator><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17234">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <disk type='file' device='disk'><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17235">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <driver name='qemu' type='qcow2' cache='none'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17236">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source file='/mvmgptb11/images/flexibed/vm_5/sros-vm.qcow2'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17237">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <target dev='hda' bus='virtio'/><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17238">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </disk><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17239">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <interface type='bridge'><o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1516825847521_17240">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <mac address='FA:AC:A5:00:7E:00'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17241">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source bridge='breth0'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17242">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <model type='virtio'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17243">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </interface><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <interface type='bridge'><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <mac address='FA:AC:A5:00:7E:01'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17246">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source bridge='breth1'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <model type='virtio'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17248">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </interface><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <interface type='vhostuser'><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <mac address='FA:AC:A5:00:7E:02'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17251">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source type='unix' path='/var/run/openvswitch/vhost-user-1' mode='client'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17252">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <model type='virtio'/><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17253">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </interface><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <interface type='vhostuser'><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <mac address='FA:AC:A5:00:7E:04'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source type='unix' path='/var/run/openvswitch/vhost-user-3' mode='client'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <model type='virtio'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </interface><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <interface type='vhostuser'><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <mac address='FA:AC:A5:00:7E:05'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source type='unix' path='/var/run/openvswitch/vhost-user-2' mode='client'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <model type='virtio'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </interface><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <console type='tcp'><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <source mode='bind' host='0.0.0.0' service='2501'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <protocol type='telnet'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <target type='virtio' port='0'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </console><o:p></o:p></span></p>
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<div id="yui_3_16_0_ym19_1_1516825847521_17269">
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <watchdog model='i6300esb' action='reset'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </devices><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <seclabel type='none'/><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"></domain><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">On Wednesday, January 24, 2018 12:54 PM, "Mooney, Sean K" <<a href="mailto:sean.k.mooney@intel.com">sean.k.mooney@intel.com</a>> wrote:</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-family:"Helvetica Neue";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> Mooney, Sean K
<br>
<b>Sent:</b> Wednesday, January 24, 2018 8:52 PM<br>
<b>To:</b> Adnan Mundres <<a href="mailto:amundres@yahoo.com">amundres@yahoo.com</a>>;
<a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a><br>
<b>Cc:</b> Mooney, Sean K <<a href="mailto:sean.k.mooney@intel.com">sean.k.mooney@intel.com</a>><br>
<b>Subject:</b> RE: [libvirt] with vhostuser I cannot use hugepages</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Helvetica Neue";color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">
<a href="mailto:libvir-list-bounces@redhat.com" target="_blank">libvir-list-bounces@redhat.com</a> [<a href="mailto:libvir-list-bounces@redhat.com" target="_blank">mailto:libvir-list-bounces@redhat.com</a>]
<b>On Behalf Of </b>Adnan Mundres<br>
<b>Sent:</b> Wednesday, January 24, 2018 6:54 PM<br>
<b>To:</b> <a href="mailto:libvir-list@redhat.com" target="_blank">libvir-list@redhat.com</a><br>
<b>Subject:</b> [libvirt] with vhostuser I cannot use hugepages</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Helvetica Neue";color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">In my setup I am using qemu-kvm without openstack. I am trying to use ovs with dpdk. In my xml file I added following lines for the dpdkvhostuser</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"><cpu mode='host-passthrough'></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <numa></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> <cell id="0" cpus="0-6" memory="16777216" unit='KiB' memAccess="shared"/></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </numa></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </cpu></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">[Mooney, Sean K] this xml snippit is not requsting the use of huge page memory.</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">It is requesting memory to be allocated form a single numa node and for that to be mmaped shared.</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">Dpdk does not actually need the guest to use hugepages it just improves the performance. What it requires</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">Is that the gues uses file descriptor backed, pre allocated, locked, shared memory.</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">e.g.</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <memoryBacking></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <locked/></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <source type='file'/></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <access mode='shared'/></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <allocation mode='immediate'/></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </memoryBacking></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">Hugepages will enable all of the above features implicitly.
</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">to enable hugepages add</span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"><memoryBacking></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"><hugepages></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> <page size="16" unit="G" nodeset="0"/></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </hugepages></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"></memoryBacking></span></i></b><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><i><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black">[Mooney, Sean K] oh I forgot to say you can find the relevant documentation here
</span></i></b><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"><a href="https://libvirt.org/formatdomain.html#elementsMemoryBacking" target="_blank">https://libvirt.org/formatdomain.html#elementsMemoryBacking</a></span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:11.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">I have enabled hugepages during boot time</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">ot@mvmgptb11hyp01 hyp-1]# cat /proc/meminfo | grep -i huge</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">AnonHugePages: 126976 kB</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">HugePages_Total: 100</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">HugePages_Free: 80</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">HugePages_Rsvd: 0</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">HugePages_Surp: 0</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Hugepagesize: 1048576 kB</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">But When I start my vm (virsh start vm1.xml) I am seeing that this vm is not using memory from hugepages, rather it is taking memory from total
memory. When I checked the log file I see that it is using</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">-object memory-backend-file,id=ram-node0,prealloc=yes,mem-path=/var/lib/libvirt/qemu/ram,share=yes</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">It should use backend memory as following</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">-object memory-backend-file,id=ram-node0,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu/vm1,share=yes</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black"> </span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black">Any idea how can I use memory from hugepages</span><span style="font-family:"Helvetica Neue";color:black"><o:p></o:p></span></p>
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