05-05, 11:45–12:30 (Europe/Berlin), Meeting Room
bpftrace is a utility that uses the Linux kernel tracing infrastructure (and eBPF) in order to provide tracing capabilities within the kernel, like uprobe, kprobe, tracepoints, etc.
bpftrace can help us to analyze the performance of [unmodified] Osmocom programs and quickly provide information like, for example:
* Histogram of time spent in a specific system call
* Histogram of any argument or return value of any system call
One of the original authors of OpenBSC and OsmocomBB, both of which turned into Osmocom later on. Also co-founder of sysmocom, the leading company for professional R&D around many osmocom projects and largest contributor to Osmocom.
In previous lives, I hacked [among other things] on netfilter/iptables, OpenMoko and did a lot of work in terms of legal compliance to Open Source licenses at gpl-violations.org