And of course some QUIC implementations have HyStart++, e.g.,
https://blog.cloudflare.com/cubic-and-hystart-support-in-quiche/


On 30.05.23 17:27, Joerg Deutschmann via Bloat wrote:
> Hi Dave,
>
> some brief information regarding HyStart++ on Windows:
> https://techcommunity.microsoft.com/t5/networking-blog/algorithmic-improvements-boost-tcp-performance-on-the-internet/ba-p/2347061
> https://datatracker.ietf.org/meeting/113/materials/slides-113-tcpm-draft-ietf-tcpm-hystartplusplus-04-00
>
> AFAIK, there is no Linux implementation for HyStart++, only HyStart:
> https://www.kernel.org/doc/html/latest/networking/snmp_counter.html#tcp-hybrid-slow-start
> (but I would be interested if there was a HyStart++ implementation for
> Linux; also there are several papers about HyStart but not HyStart++)
>
> And HyStart++ should be available in FreeBSD:
> https://reviews.freebsd.org/D33035
> https://cgit.freebsd.org/src/commit/?id=653cf466f08584c0fd87bc336cdc1db08f0d4434
>
> Best regards,
> Joerg
>
>
> On 28.05.23 14:46, Dave Taht via Bloat wrote:
>> Does a linux implementation of this exist? It looks promising...
>>
>> https://datatracker.ietf.org/doc/html/rfc9406
>>
>
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