svn commit: r332770 - in head/sys: conf netinet netinet/tcp_stacks sys

hiren panchasara hiren at strugglingcoder.info
Mon Apr 30 07:22:20 UTC 2018


On 04/19/18 at 01:38P, Randall Stewart wrote:
> Author: rrs
> Date: Thu Apr 19 13:37:59 2018
> New Revision: 332770
> URL: https://svnweb.freebsd.org/changeset/base/332770
> 
> Log:
>   This commit brings in the TCP high precision timer system (tcp_hpts).
>   It is the forerunner/foundational work of bringing in both Rack and BBR
>   which use hpts for pacing out packets. The feature is optional and requires
>   the TCPHPTS option to be enabled before the feature will be active. TCP
>   modules that use it must assure that the base component is compile in
>   the kernel in which they are loaded.
>   
>   MFC after:	Never
>   Sponsored by:	Netflix Inc.
>   Differential Revision:	https://reviews.freebsd.org/D15020

Randall,

In my understanding, default stack currently cannot use this mechanism. When do
you think that'll be possible?

Thanks for your work,
Hiren
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