Noisy Neighbor Detection with eBPF
By Jose Fernandez, Sebastien Dabdoub, Jason Koch, Artem Tkachuk The Compute and Performance Engineering teams at Netflix regularly investigate performance issues in our multi-tenant environment. The first step is determining whether the problem originates from the application or the underlying infrastructure. One issue that often complicates this process is the "noisy neighbor" problem. On Titus,
BPF: A New Type of Software
Recent posts: 22 Jul 2024 » No More Blue Fridays 24 Mar 2024 » Linux Crisis Tools 17 Mar 2024 » The Return of the Frame Pointers 10 Mar 2024 » eBPF Documentary 28 Apr 2023 » eBPF Observability Tools Are Not Security Tools 01 Mar 2023 » USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon 17 Feb 2023 » USENIX SREcon APAC 2023: CFP 02 May 2022 » Brendan@Intel.com 15 Apr 2022 » Netfl
BPF at Facebook (and beyond) [LWN.net]
It is no secret that much of the work on the in-kernel BPF virtual machine and associated user-space support code is being done at Facebook. But less is known about how Facebook is actually using BPF. At Kernel Recipes 2019, BPF developer Alexei Starovoitov described a bit of that work, though even he admitted that he didn't know what most of the BPF programs running there were doing. He also summ
BPF Performance Tools: Linux System and Application Observability (book)
BPF Performance Tools: Linux System and Application Observability (book) 15 Jul 2019 BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability, coming soon from Addison Wesley. The book includes over 150 BPF observability tools that you can run to find performance wins and troubleshoot
bpftrace (DTrace 2.0) for Linux 2018
Recent posts: 28 Apr 2023 » eBPF Observability Tools Are Not Security Tools 01 Mar 2023 » USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon 17 Feb 2023 » USENIX SREcon APAC 2023: CFP 02 May 2022 » Brendan@Intel.com 15 Apr 2022 » Netflix End of Series 1 09 Apr 2022 » TensorFlow Library Performance 19 Mar 2022 » Why Don't You Use ... 26 Sep 2021 » The Speed of Time 06 Sep 2021 »
IR decoding with BPF [LWN.net]
Please consider subscribing to LWNSubscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. In the 4.18 kernel, a new feature was merged to allow infrared (IR) decoding to be done using BPF. Infrared remotes use many diffe
BPF, eBPF, XDP and Bpfilter… What are these things and what do they mean for the enterprise? - Netronome
BPF, eBPF, XDP and Bpfilter… What are These Things and What do They Mean for the Enterprise? By Netronome | Apr 16, 2018 You may have been following the development of the extended Berkeley Packet Filter (eBPF) in the kernel community since 3.15, or you may still associate the Berkeley Packet Filter with the work Van Jacobson did in 1992. You may have used BPF for years with tcpdump, or you may
LinuxのBPF : (1) パケットフィルタ - 睡分不足
はじめに BPFの基礎 BPFの構造 BPFでのフィルタリング レジスタマシン LinuxでのBPF BPFを利用したパケットフィルタリング libpcapとBPF ここまでのまとめ 参考文献 その他参考URL はじめに BPFはBerkeley Packet Filterの略で，1993年に効率的なパケットフィルタリング手法として提案されました[1] *1． BPFの構成要素は大きく2つあって，一つがネットワークからパケットをキャプチャする部分，そしてもう一つがキャプチャした パケットをフィルタリングする部分です．BPFといった場合，後者のフィルタリング機構だけを指すことも多いです． FreeBSDなどのBSD系のOSでは/dev/bpf*という特別なデバイスがあって，このBPFを利用することができます．また， Linuxでもパケットフィルタリング（Linux Sokcet Filter
1
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