Very slow and increasing "Average upstream response time" #6818
Description
Prerequisites
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I have checked the Wiki and Discussions and found no answer
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I have searched other issues and found no duplicates
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I want to report a bug and not ask a question or ask for help
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I have set up AdGuard Home correctly and configured clients to use it. (Use the Discussions for help with installing and configuring clients.)
Platform (OS and CPU architecture)
Custom (please mention in the description)
Installation
Other (please mention in the description)
Setup
On one machine
AdGuard Home version
v0.107.45
Action
I used to use DoH of various DNS services and recently noticed it takes quite a while to load websites, so I decided to switch to old regular DNS, hoping to speed it up, but it didn't happen. Once added, upstream DNS starts increasing the average response time for more than 10x.
On the same machine where AGH is installed, running dnsperftest script multiple times a day, returns more or less consistent results:
test1 test2 test3 test4 test5 test6 test7 test8 test9 test10 Average
76.76.2.41 35 ms 35 ms 35 ms 39 ms 35 ms 39 ms 39 ms 47 ms 39 ms 35 ms 37.80 //from resolv.conf
9.9.9.9 3 ms 3 ms 47 ms 3 ms 11 ms 3 ms 7 ms 3 ms 3 ms 11 ms 9.40 //from resolv.conf
quad9 3 ms 3 ms 7 ms 3 ms 3 ms 3 ms 3 ms 3 ms 7 ms 11 ms 4.60
google 11 ms 11 ms 27 ms 11 ms 7 ms 27 ms 15 ms 59 ms 11 ms 27 ms 20.60
norton 31 ms 27 ms 31 ms 27 ms 27 ms 27 ms 27 ms 27 ms 27 ms 23 ms 27.40
neustar 31 ms 35 ms 31 ms 31 ms 35 ms 35 ms 35 ms 31 ms 31 ms 35 ms 33.00
level3 27 ms 31 ms 31 ms 63 ms 31 ms 51 ms 31 ms 31 ms 27 ms 31 ms 35.40
cleanbrowsing 35 ms 35 ms 39 ms 35 ms 35 ms 39 ms 39 ms 39 ms 35 ms 43 ms 37.40
nextdns 39 ms 39 ms 39 ms 35 ms 35 ms 39 ms 35 ms 39 ms 39 ms 39 ms 37.80
opendns 35 ms 35 ms 39 ms 39 ms 39 ms 35 ms 35 ms 51 ms 35 ms 35 ms 37.80
comodo 39 ms 35 ms 39 ms 35 ms 39 ms 35 ms 43 ms 39 ms 39 ms 39 ms 38.20
freenom 35 ms 31 ms 63 ms 31 ms 75 ms 27 ms 31 ms 83 ms 35 ms 83 ms 49.40
yandex 71 ms 67 ms 71 ms 67 ms 71 ms 71 ms 71 ms 71 ms 71 ms 67 ms 69.80
adguard 155 ms 127 ms 139 ms 175 ms 119 ms 139 ms 123 ms 155 ms 131 ms 135 ms 139.80
cloudflare 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000 ms 1000.00
While the current "Average upstream response time" in AGH looks like this (and progressively increases more and more):
When I'm using VPN and its DNS, website are loading noticeably faster. Is there something to change in AdGuard Home DNS settings shown below which should hopefully speed up the response time?
dns:
bind_hosts:
- 0.0.0.0
port: 53
anonymize_client_ip: false
ratelimit: 150
ratelimit_subnet_len_ipv4: 24
ratelimit_subnet_len_ipv6: 56
ratelimit_whitelist: []
refuse_any: true
upstream_dns:
- 76.76.2.41
- 76.76.2.32
- 193.110.81.0
- 9.9.9.9
upstream_dns_file: ""
bootstrap_dns:
- 76.76.10.32
- 76.76.10.41
fallback_dns:
- 9.9.9.9
upstream_mode: load_balance
fastest_timeout: 1s
allowed_clients: []
disallowed_clients: []
blocked_hosts:
- version.bind
- id.server
- hostname.bind
trusted_proxies:
- 127.0.0.0/8
- ::1/128
cache_size: 134217728
cache_ttl_min: 0
cache_ttl_max: 0
cache_optimistic: true
bogus_nxdomain: []
aaaa_disabled: false
enable_dnssec: false
edns_client_subnet:
custom_ip: ""
enabled: false
use_custom: false
max_goroutines: 300
handle_ddr: true
ipset: []
ipset_file: ""
bootstrap_prefer_ipv6: false
upstream_timeout: 10s
private_networks: []
use_private_ptr_resolvers: true
local_ptr_upstreams: []
use_dns64: false
dns64_prefixes: []
serve_http3: false
use_http3_upstreams: false
serve_plain_dns: true
Expected result
Lower "Average upstream response time" over time and faster responses.
Actual result
"Average upstream response time" getting increased over time. Websites take quite a while to load.
Additional information and/or screenshots
AdGuard Home is installed on RPi 3B+ running DietPi (debian based).