<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Your thread should be equal to or lower than the number of slabs.</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
The thread count seems extremely high, you should not need so many. You should set num-queries-per-thread. Try 16384</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Can you also paste your memory settings and Cache settings?</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div dir="ltr" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="mail-editor-reference-message-container">
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"></div>
<div class="ms-outlook-mobile-reference-message skipProofing" style="text-align: left; padding: 3pt 0in 0in; border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentcolor currentcolor; font-family: Aptos; font-size: 12pt; color: black;">
<b>From: </b>sir izake <sirizake@gmail.com><br>
<b>Date: </b>Tuesday, 25 November 2025 at 8:08 pm<br>
<b>To: </b>Seth Van Buren <seth.vanburen@versent.com.au><br>
<b>Cc: </b>unbound-users@lists.nlnetlabs.nl <unbound-users@lists.nlnetlabs.nl><br>
<b>Subject: </b>Re: How to measure cache hit resolution time in unbound 1.24.1<br>
<br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">Hi Seth</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"> num-threads: 64</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">msg-cache-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">rrset-cache-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">infra-cache-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">key-cache-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">ratelimit-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">ip-ratelimit-slabs: 32</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">The physical server is a dell 640 with specs below</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">hw.ncpu: 104</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">hw.model: Intel(R) Xeon(R) Gold 6230R CPU @ 2.10GHz</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">Thank you</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing">Isaac </div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="ms-outlook-mobile-reference-message skipProofing"><br>
</div>
<div dir="ltr" class="gmail_attr">On Tue, Nov 25, 2025 at 5:13 AM Seth Van Buren <<a href="mailto:seth.vanburen@versent.com.au" data-outlook-id="b893d59c-0eee-4f1f-9b19-63b99d7f6f1b">seth.vanburen@versent.com.au</a>> wrote:</div>
<blockquote style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204);">
<div dir="ltr" class="gmail_quote" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Home many cores/slabs are you using?</div>
<div dir="ltr" class="gmail_quote" style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="m_3615652848603398870mail-editor-reference-message-container">
<div style="text-align: left; padding: 3pt 0in 0in; border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentcolor currentcolor; font-family: Aptos; font-size: 12pt; color: black;">
<b>From: </b>Unbound-users <<a href="mailto:unbound-users-bounces@lists.nlnetlabs.nl" target="_blank" data-outlook-id="d52c54b1-b093-4a05-b13a-136651631af4">unbound-users-bounces@lists.nlnetlabs.nl</a>> on behalf of sir izake via Unbound-users <<a href="mailto:unbound-users@lists.nlnetlabs.nl" target="_blank" data-outlook-id="4379d517-c51e-4bae-ab9d-a92e8254af5b">unbound-users@lists.nlnetlabs.nl</a>><br>
<b>Date: </b>Tuesday, 25 November 2025 at 2:51 pm<br>
<b>To: </b><a href="mailto:unbound-users@lists.nlnetlabs.nl" target="_blank" data-outlook-id="ce1d6436-6ff8-49b5-b4ab-f8dd01431107">unbound-users@lists.nlnetlabs.nl</a> <<a href="mailto:unbound-users@lists.nlnetlabs.nl" target="_blank" data-outlook-id="1c71eab0-61f7-4f57-988a-8265d6559159">unbound-users@lists.nlnetlabs.nl</a>><br>
<b>Subject: </b>How to measure cache hit resolution time in unbound 1.24.1<br>
<br>
</div>
<div dir="ltr">Hi </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I have installed unbound 1.24.1 on FreeBSD 14.3 OS. My cache hit rate is 76% with over 20% coming through recursive replies.</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">The median time for recursive replies is 440ms while the avg is 520ms. </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">This setup has been running for over 72hrs. I expect stats to improve but that is not happening.</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Just wanted to find out if there is a way to measure the cache hit resolution time in a dashboard?</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Can I do anything to improve cache hit ratio?</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Can I also improve the recursive reply time?</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I am using unbound_exporter to monitor stats in grafana</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">My configs have been adjusted as follows:</div>
<div dir="ltr">rrset-cache-size: 20G <br>
msg-cache-size: 10G <br>
cache-min-ttl: 1800</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I am using the root hint files directly on the server for recursive lookup and not forwarding to any public resolver</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Thank you </div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Regards,</div>
<div dir="ltr">Isaac </div>
<div dir="ltr"><br>
</div>
<div dir="ltr"><br>
</div>
</div>
</blockquote>
</div>
</body>
</html>