freebsd-dev/sys/amd64/conf/DEFAULTS
Richard Scheffenegger bb1d472d79 tcp: make CUBIC the default congestion control mechanism.
This changes the default TCP Congestion Control (CC) to CUBIC.
For small, transactional exchanges (e.g. web objects <15kB), this
will not have a material effect. However, for long duration data
transfers, CUBIC allocates a slightly higher fraction of the
available bandwidth, when competing against NewReno CC.

Reviewed By: tuexen, mav, #transport, guest-ccui, emaste
Relnotes: Yes
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D36537
2022-09-13 12:09:21 +02:00

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#
# DEFAULTS -- Default kernel configuration file for FreeBSD/amd64
#
# $FreeBSD$
machine amd64
# Bus support.
device isa
# Pseudo devices.
device mem # Memory and kernel memory devices
device io # I/O device
# UART chips on this platform
device uart_ns8250
# Default partitioning schemes
options GEOM_PART_BSD
options GEOM_PART_EBR
options GEOM_PART_MBR
options GEOM_PART_GPT
# Default congestion control algorithm
options CC_CUBIC # include CUBIC congestion control
options NEW_PCIB