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Yes as Daisuke said, it’s a very unscientific approach to measure this. We use data from our load test rig plus some baseline network latency to arrive at estimates.</div>
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Our average also includes timeouts from some exotic domains and records that do not exist which probably originate from malware and all sorts of crap on our clients devices. It’s amazing the junk that people try to access.</div>
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How did your test go with the tuning already suggested, did you see any improvements?</div>
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<b>From: </b>Unbound-users <unbound-users-bounces@lists.nlnetlabs.nl> on behalf of Daisuke HIGASHI via Unbound-users <unbound-users@lists.nlnetlabs.nl><br>
<b>Date: </b>Thursday, 27 November 2025 at 9:45 pm<br>
<b>To: </b>sir izake <sirizake@gmail.com><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>
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<div dir="auto" class="ms-outlook-mobile-reference-message skipProofing">sir izake via Unbound-users <<a href="mailto:unbound-users@lists.nlnetlabs.nl" target="_blank" data-outlook-id="f86f77c6-57b5-49c4-a85d-870a2306914e">unbound-users@lists.nlnetlabs.nl</a>>:</div>
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<div dir="auto" class="gmail_quote">Just wanted to find out if there is a way to measure the cache hit resolution time in a dashboard?</div>
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Unbound has no facility to measure cache hit resolution time.</div>
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A method to measure cache hit time is to make query to names which always resolved with cache hit e.g. “dig -t NS . “; If the resolver is too busy and queries always remain stuck in its receive queue, its response (even for cache hit) would be delayed due to
the queue dwell time, and queries may even be dropped.</div>
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