http://www.brendangregg.com/ebpf.html https://qmonnet.github.io/whirl-offload/2016/09/01/dive-into-bpf/ A thorough introduction to eBPF https://lwn.net/Articles/740157/ http://netdevconf.org/1.2/papers/borkmann.pdf https://qmonnet.github.io/whirl-off…
Luca Canali on 26 May 2016 Topic: In this post you will find a short discussion and pointers to the code of a few sample scripts that I have written using Linux BPF/bcc and uprobes for Oracle tracing. Previous work and motivations Tools for dynamic t…
BPF for storage:一种受外核启发的反式 译自:BPF for storage: an exokernel-inspired approach BPF主要用于报文处理,通过绕过网络栈提高报文的处理速度.本文则用于通过绕过存储栈(文件系统.BIO等层)来提高存储的读写效率,但在实现过程中也遇到了相应的挑战,如文件和块的映射关系,多进程共享存储块以及进程间的QoS等. 概要 内核存储路径开销占新式NVMe存储设备访问延迟的一半.本文中我们将探究使用BPF在内核的I/O处理栈中注入用户定自…
Dive into BPF: a list of reading material Sep 1, 2016 • Quentin Monnet◀Table of contents What is BPF? Dive into the bytecode Resources Generic presentations About BPF About XDP About other components related or based on eBPF Documentation About BPF A…
I got the following error message when trying to open a network interface for capture using Wireshark on Mac OS X (Wireshark 1.5.1 Intel 64 beta and 1.4.6 Intel 64 show this behaviour): There are no interfaces on which a capture can be done. To solve…
home Choosing a Linux Tracer (2015) 08 Jul 2015 Linux Tracing is Magic! A tracer is an advanced performance analysis and troubleshooting tool, but don't let that intimidate you... If you've used strace(1) or tcpdump(8) – you've used a tracer. System…