Hello,
I'm currently benchmarking EDNS client module for unbound and i can handle about 75/80% less than before. The tests are made on a Debian Stretch 9.5 with unbound 1.7.3 (I have the same results with 1.6.7). My server can handle about 280k req/sec without UDP errors and a minimal configuration. Once i add 'subnetcache' to module-config in my configuration my rate go down to 55k req/sec. Over this limit, i have a lot of UDP errors. I have tried to tune some options related to EDNS in unbound.conf, but it doesn't change anything. Is there a know issue on unbound performance when enabling this feature ? Best Regards -- Alex
