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0x18 Talk: Innovation from Within: The Story of Meta's Host Network Interface and fbnic Driver
by Jamal Hadi Salim 07 Jun '24

07 Jun '24

Alexander Duyck will talk about Meta's Host Network Interface (HNI) and its accompanying Linux driver called fbnic. Why would Meta build their own NIC instead of picking one from the menu of vendors? How is it different from a NIC you can get off a shelf somewhere? All good questions. Join the conference and hear it all from Alex! For more info: netdevconf.info/0x18/20 cheers, jamal

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0x18: Talk, Characterizing IOTLB Wall for Multi-100-Gbps Linux-based Networking
by Jamal Hadi Salim 06 Jun '24

06 Jun '24

New talk from Alireza Farshin and Luigi Rizzo. NIC link speeds are moving quickly toward the 1 Tbps per-port range and higher! These speed increases open up newer bottlenecks in the communication between system components ( i.e PCIe bus, address translation (IOMMU), memory fabric, and memory chips) that we never had to worry about at lower speeds. In this talk Alireza and Luigi focus on the IOMMU and the associated IOTLB contributions to the new bottlenecks. The IOTLB size tends to be small and depending on the pattern of IO requests, it is possible to overflow the cache and cause a dramatic drop in performance. The authors refer to this threshold phenomena as the "IOTLB wall". For instance, the buffer management (e.g., PagePool API in the Linux kernel) and various offloading capabilities of modern NICs (e.g., LRO and TSO) could affect the memory request pattern, and consequently the number of IOTLB misses. Alireza and Luigi describe the IOTLB behavior and its effects on recent Intel Xeon Scalable & AMD EPYC processors at 200 Gbps, by analyzing the impact of different factors contributing to IOTLB misses and causing a throughput drop. The authors then proceed to prescribe how the problem can be mitigated with various techniques. More info: netdevconf.info/0x18/7 cheers, jamal

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0x18: media sponsor, LWN
by Jamal Hadi Salim 04 Jun '24

04 Jun '24

Hi, The premier news and information source for the free and open source software community, Linux Weekly News(https://lwn.net/) is back as the media sponsor for the netdev conference. We thank them, again! cheers, jamal

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0x18: 6 New Workshops!
by Jamal Hadi Salim 03 Jun '24

03 Jun '24

We are pleased to announce 6 workshops that will take place at 0x18. Steffen Klassert will chair the IPsec workshop https://netdevconf.info/0x18/sessions/workshop/ipsec-workshop.html Tom Herbert will chair a Workshop on Extension Headers https://netdevconf.info/0x18/sessions/workshop/workshop-on-extension-header… David Ahern and Alexander Duyck will chair the Driver and H/W APIs Workshop https://netdevconf.info/0x18/sessions/workshop/driver-and-hw-apis-workshop.… Pablo Neira Ayuso will chair the Netfilter Mini workshop https://netdevconf.info/0x18/sessions/workshop/netfilter-mini-workshop.html Jamal Hadi Salim will chair the TC workshop https://netdevconf.info/0x18/sessions/workshop/tc-workshop.html cheers, jamal

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0x18: Last day of early bird registration
by Jamal Hadi Salim 03 Jun '24

03 Jun '24

... that is today, folks... cheers, jamal

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0x18: secunet, Bronze Sponsor!
by Jamal Hadi Salim 03 Jun '24

03 Jun '24

We are pleased to welcome back friends of the conference, secunet, as a bronze sponsor for Netdevconf 0x18! secunet is a long time supporter. We are grateful for their continued support. So who is Secunet? secunet(https://www.secunet.com/) is Germany’s leading cybersecurity company. In an increasingly connected world, the company’s combination of products and consulting assures resilient digital infrastructures and the utmost protection for data, applications and digital identities. secunet specialises in areas with unique security requirements – such as cloud, IIoT, eGovernment and eHealth. With security solutions from secunet, companies can maintain the highest security standards in digitisation projects and advance their digital transformation. secunet is an IT security partner to the Federal Republic of Germany and a partner of the German Alliance for Cyber Security. cheers, jamal

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0x18: BoF, My Fu is Better Than Yours!
by Jamal Hadi Salim 01 Jun '24

01 Jun '24

Back by popular demand! Started at NetDev 0x17, it was such a big hit, so much so that PJ wants to do it again! This BoF is a free-form, guilt-free, open collaboration forum for people to come and share their cool hacks, development flows, testing flows, or whatever else seems neat that you want others to see. Open sharing of these ideas can help someone optimize their own workflows, or you can optimize yours by hearing feedback or input on yours! Come and partake in this fun session! Rumor has it even Jamal may gather the courage to go on stage this time!! If you missed the last one, watch the video: https://youtu.be/D7YBDQiR2X4 cheers, jamal

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0x18: Tutorial, Introduction to PTP on Linux - APIs
by Jamal Hadi Salim 31 May '24

31 May '24

Maciek Machnikowski will be conducting a tutorial to introduce us to the Linux APIs and associated infrastructure for PTP. Maciek will dig into the fundamentals for understanding the different components that are essential for time synchronization and how they work together to achieve accurate time synchronization. Come join him and learn how to achieve precise time synchronization easily. More details: https://netdevconf.info/0x18/sessions/tutorial/introduction-to-ptp-on-linux… cheers, jamal

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0x18: Tutorial, PTP from scratch
by Jamal Hadi Salim 30 May '24

30 May '24

In this exciting interactive tutorial, our esteemed instructors, Milena Olech and Maciek Machnikowski will teach you how to create and implement a driver for a PTP Hardware Clock (PHC) and link it with a network device capable of hardware timestamping. Milena and Maciek will use the netdevsim driver to drop some hands-on knowledge with the process and insights into enabling the PHC and implementing the PTP-related kernel APIs. More details: https://netdevconf.info/0x18/sessions/tutorial/tutorial-ptp-from-scratch.ht… cheers, jamal

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0x18: Gold Sponsor, Jump Trading!
by Jamal Hadi Salim 29 May '24

29 May '24

We are very pleased to welcome _back_ Jump Trading Group as a Gold sponsor for Netdev conf 0x18! Thank you for your support! Jump Trading Group(https://www.jumptrading.com/) is a research-based electronic trading firm with 1,500+ employees and over a dozen offices across the globe. Founded in the trading pits of Chicago in 1999, Jump's continued success is driven by partnering sophisticated quantitative research with bleeding-edge technology to trade the global markets. Jump's culture is unique. Constant innovation requires fearlessness, creativity, intellectual honesty, and a relentless competitive streak. They research, design, develop, and deploy technologies that constantly change their world, fund startup-ups across industries, and partner with global research organizations and universities to continue solving problems. cheers, jamal

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