tcp_pacing_ss_ratio

file: /proc/sys/net/ipv4/tcp_pacing_ss_ratio
variable: net.ipv4.tcp_pacing_ss_ratio
Official reference

sk->sk_pacing_rate is set by TCP stack using a ratio applied to current rate. (current_rate = cwnd * mss / srtt) If TCP is in slow start, tcp_pacing_ss_ratio is applied to let TCP probe for bigger speeds, assuming cwnd can be doubled every other RTT. Default: 200

source