Zitat von Eugene Prokopiev via Unbound-users <[email protected]>:
Hi,
Are optimization hints from
https://www.unbound.net/documentation/howto_optimise.html actual for
linux system with 16 cores? I'm using now:
so-rcvbuf: 4M
so-sndbuf: 4M
msg-cache-size: 128M
rrset-cache-size: 256M
msg-cache-slabs: 65536
rrset-cache-slabs: 65536
key-cache-slabs: 65536
infra-cache-slabs: 65536
outgoing-range: 8192
num-queries-per-thread: 4096
Are such setting optimal? How to propertly calculate outgoing-range
and num-queries-per-thread with libevent?
Is it possible to know if cache size settings are enough or it must be
increased?
Hello,
the size of cache needed depends on the usage pattern. The optimal
value would be to hold all not yet expired results in cache. For a
busy resolver cache i would at least set the msg-cache-size to some
hundred meg. Regarding the outgoing-range and num-queries-per-thread
these are values which set the max "in transit" queries, so they
should be as large as useful and your OS allows. If you like to use
all cores you might *lower* the values to not overtax the OS because
these are per thread values.
Regards
Andreas
