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--- linux:unbound [2018/03/25 07:19] – cbredi
+++ linux:unbound [2019/12/16 05:33] (current) – cbredi
@@ Line 20: / Line 20: @@
   do-ip6: no # if IPv6 is not available
   so-reuseport: yes
+</code>
+Performance optimisation:
+[[https://nlnetlabs.nl/documentation/unbound/howto-optimise/]]
+<code>
+server:
+    # use all CPUs
+    num-threads: <number of cores>
+    # power of 2 close to num-threads
+    msg-cache-slabs: <same>
+    rrset-cache-slabs: <same>
+    infra-cache-slabs: <same>
+    key-cache-slabs: <same>
+    # more cache memory, rrset=msg*2
+    rrset-cache-size: 100m
+    msg-cache-size: 50m
+    # more outgoing connections
+    # depends on number of cores: 1024/cores - 50
+    outgoing-range: 950
+    # Larger socket buffer.  OS may need config.
+    so-rcvbuf: 4m
+    so-sndbuf: 4m
+    # Faster UDP with multithreading (only on Linux).
+    so-reuseport: yes
 </code>

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