Tips: YoMo/QUIC Server Performance Tuning

[fanweixiao]

all because of QUIC is over UDP, so there is some necessary tunings before host YoMo or QUIC services

Step 1: /etc/sysctl.conf

# Default & Maximum Socket Receive Buffer 
net.core.rmem_default = 25165824
net.core.rmem_max = 33554432
# Default & Maximum Socket Send Buffer 
net.core.wmem_default = 25165824
net.core.wmem_max = 33554432
# Increase the maximum total buffer-space allocatable
# This is measured in units of pages (4096 bytes)
net.ipv4.udp_mem = 65536 131072 262144
# Increase the read-buffer space allocatable
net.ipv4.udp_rmem_min = 16384
# Increase the write-buffer-space allocatable
net.ipv4.udp_wmem_min = 16384
# others
net.core.optmem_max = 20480

then sudo sysctl -p

Step 2: Packets drop

cat /proc/net/snmp | grep -w Udp|column -t

Check InErrors, RcvbufErrors, SndbufError