News for hackers. Stuff that matters.

A comment on Dissecting QNX [pdf]. Parent comment

Re:Dissecting QNX [pdf] by Cyph0n on Wednesday September 19, 2018 @10:39AM (#18024480)
That seems to agree with what I've heard internally. Granted, I'm new, so I didn't go through the migration phase.

XR itself provides abstractions on top of QNX and Linux, so devs working on platform independent code are not really affected.

[ Parent | on HN ]
Re:Dissecting QNX [pdf] by tyingq on Wednesday September 19, 2018 @11:00AM (#18024619)
Maybe also because things like DPDK (or similar) made it possible for Linix to play at that scale?
[ Parent | on HN ]
Re:Dissecting QNX [pdf] by Cyph0n on Wednesday September 19, 2018 @03:14PM (#18026893)
The routers I am talking cannot do packet processing on the CPU. We are talking about 3.2 Tbps per linecard with 10 linecards per router.

All data plane activity is done on custom in-house ASICs called network processors (NPs). The CPU only handles control plane traffic and general administration.

[ Parent | on HN ]