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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">You can modify the memory allocations per function on the host using the command below. The node must be locked. After updating, unlock the node.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">system help host-memory-modify<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">usage: system host-memory-modify [-m <Platform Reserved MiB>]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> [-2M <2M hugepages number>]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> [-1G <1G hugepages number>] [-f <function>]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> <hostname or id> <processor><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Modify platform reserved and/or application huge page memory attributes for<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">worker nodes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Positional arguments:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> <hostname or id> Name or ID of host<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> <processor> processor<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Optional arguments:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> -m <Platform Reserved MiB>, --platform_reserved_mib <Platform Reserved MiB><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> The amount of platform memory (MiB) for the numa node<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> -2M <2M hugepages number>, --hugepages_nr_2M_pending <2M hugepages number><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> The number of 2M vm huge pages for the numa node<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> -1G <1G hugepages number>, --hugepages_nr_1G_pending <1G hugepages number><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> The number of 1G vm huge pages for the numa node<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> -f <function>, --function <function><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> The Memory Function.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Brent <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> Lemus Contreras, Cristopher J [mailto:cristopher.j.lemus.contreras@intel.com]
<br>
<b>Sent:</b> Wednesday, May 8, 2019 11:30 AM<br>
<b>To:</b> starlingx-discuss@lists.starlingx.io<br>
<b>Cc:</b> Rowsell, Brent <Brent.Rowsell@windriver.com><br>
<b>Subject:</b> Limit memory usage on Virtual Environment<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hello, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">During today’s Community meeting, memory usage on virtual environments was discussed. In summary, the memory requirements for each VM has increased significantly (see bug:
<a href="https://bugs.launchpad.net/bugs/1826445">https://bugs.launchpad.net/bugs/1826445</a> ).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">An alternative was mentioned, during the deployment it’s possible to limit the amount of memory that starlingx is going to use. Does somebody has the instructions to implement such limits? It’ll help us a
lot to continue working with Virtual Environments.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks in advance.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cristopher Lemus<o:p></o:p></span></p>
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