Proxmox doesn’t have a built-in way to check if you’re overcommitting memory on your host. (That I know of?) This is a simple tool that gives you a summary of your memory usage using some shell commands and copypasta.

Paste the output of…

{@html `qm list`}

down here:

<h2>Paste the output of…</h2>
<pre class="language-bash">{@html `<code class="language-bash">pct list <span class="token operator">|</span> <span class="token function">grep</span> <span class="token parameter variable">-v</span> VMID <span class="token operator">|</span> <span class="token function">awk</span> <span class="token string">'{'</span><span class="token punctuation">{</span><span class="token string">'} print $1 {'</span><span class="token punctuation">}</span><span class="token string">'}'</span> <span class="token operator">|</span> <span class="token function">xargs</span> <span class="token parameter variable">-I</span> x <span class="token function">sh</span> <span class="token parameter variable">-c</span> <span class="token string">'pct status x -verbose && echo ==='</span></code>`}</pre>
<p>down here:</p>
<Textarea bind:value={pctListStr} />
<h2>Paste the output of…</h2>
<pre class="language-bash">{@html `<code class="language-bash"><span class="token function">cat</span> /proc/meminfo</code>`}</pre>
<p>down here:</p>
<Textarea bind:value={meminfoStr} />
<h2>Results</h2>
<table>
    <thead>
        <tr>
            <th></th>
            <th>VM ID</th>
            <th>Name</th>
            <th>Type</th>
            <th>Status</th>
            <th style="text-align:right">Current Mem.</th>
            <th style="text-align:right">Max Mem.</th>
        </tr>
    </thead>
    <tbody>
        {#each Object.entries(pctRecord) as [vmid, data]}
            <tr>
                <td></td>
                <td>{vmid}</td>
                <td>{data.name}</td>
                <td>{data.type}</td>
                <td>{data.status}</td>
                <td style="text-align:right">{bytesToGBStr(data.mem as number)}</td>
                <td style="text-align:right">{bytesToGBStr(data.maxmem as number)}</td>
            </tr>
        {/each}
        {#each Object.entries(qmRecord) as [vmid, data]}
            <tr>
                <td></td>
                <td>{vmid}</td>
                <td>{data.NAME}</td>
                <td>qemu</td>
                <td>{data.STATUS}</td>
                <td style="text-align:right">{data.STATUS == "running" ? bytesToGBStr(data.MEM as number) : 0}</td>
                <td style="text-align:right">{bytesToGBStr(data.MEM as number)}</td>
            </tr>
        {/each}
        <tr>
            <td><b>Totals</b></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td style="text-align:right">
                <b>{bytesToGBStr(currentItemMemTotal)}</b>
            </td>
            <td style="text-align:right">
                <b>{bytesToGBStr(maxItemMemTotal)}</b>
            </td>
        </tr>
</table>
<table>
    <tbody>
        <tr>
            <th>Current System Memory Usage</th>
            <td>{bytesToGBStr(currentSystemMem)}</td>
        </tr>
        <tr>
            <th>Memory Used by Host</th>
            <td>{bytesToGBStr(hostMemUsed)}</td>
        </tr>
        <tr>
            <th>Max Potential Memory Use</th>
            <td>{bytesToGBStr(maxMemUse)}</td>
        </tr>
        <tr>
            <th>Total Host Memory</th>
            <td>{bytesToGBStr(meminfoRecord.MemTotal as number)}</td>
        </tr>
        <tr>
            <th>Available for Provisioning</th>
             <td
                style={styleObjToStr({
                    color: (
                        memAvailableForProvisioning > 0
                        ? "green"
                        : "hotpink"
                    )
                })}
            >
                {bytesToGBStr(memAvailableForProvisioning)}
        </td>
        </tr>
    </tbody>
</table>
</article></body></html>

Category: proxmox

Tools: Proxmox Memory Info