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Saturday, January 25 • 2:00pm - 2:25pm
strace: fight for performance

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The talk gives an overview of various optimisations implemented in strace over the past several years. While most of them are quite trivial (like caching of frequently-used data or avoiding syscalls whenever possible), some of them are a bit more tricky (like usage of seccomp BPF programs for avoiding excessive ptrace stops) and/or target more specific use cases (like the infamous thread queueing patch[1], which had been carried as a RHEL downstream patch for almost 10 years).

[1] https://gitlab.com/strace/strace/commit/e0f0071b36215de8a592bf41ec007a794b550d45

avatar for Eugene Syromiatnikov

Eugene Syromiatnikov

Senior Software Engineer, Red Hat
A strace developer. Used to work in an HPC-related field. Currently employed at Red Hat as a software engineer in the kernel maintainers team, responsible for producing Driver Updates, and maintenance of various RHEL packages, including strace and Intel CPU microcode updates.
avatar for Dmitry Levin

Dmitry Levin

Chief Software Architect, BaseALT
Dmitry is the co-founder and the chief architect of BaseALT, a long time contributor to free software projects, including strace, Linux kernel, the GNU libc, Linux-PAM, and many others. Being the maintainer of strace since 2009, Dmitry gives talks about this tool for various audi... Read More →

Saturday January 25, 2020 2:00pm - 2:25pm CET
E112 Faculty of Information Technology Brno University of Technology, Božetěchova, Brno-Královo Pole, Czechia